Richard Smith

Farm Advisor, Vegetable Crop Production & Weed Science
Cooperative Extension Monterey County
1432 Abbott Street
Salinas, CA 93901
(831) 759-7357
rifsmith@ucanr.edu Create VCard

Also in:
Santa Cruz County
Vegetable Research & Information Center
Weed Research & Information Center
San Benito County

Education

--, UC Davis. 1985

Specialty

Vegetable Crop Production & Weed Science

Areas of Expertise (click to see all ANR academics with this expertise)

Bibliography

Peer Reviewed

  • Mosqueda, E.; Smith, R.F., et al. (2018). Automated lettuce thinners reduce labor requirements and increase speed of thinning. California Agriculture. 72:2, 114-119.
  • K., Miller; Aegerter, B.J., et al. (2018). Relationship between soil properties and nitrogen mineralization in undisturbed soil cores from California agroecosystems. Communications in Plant and Soil Analysis. November. https://doi.org/10.1080/00103624.2018.1554668
  • Fennimore, S.; Smith, R., et al. (2014). Evaluation and economics of a rotating cultivator in bock choy, celery, lettuce and radicchio. Weed Technology. 28:1, 176-188.
  • Heinrich, A.; Smith, R., et al. (2013). "Nutrient and water use of fresh market spinach." HortTechnology 23(3): 325-333.
  • Bottoms, T.; Smith, R., et al. (2012). "Nitrogen requirements and N status determination of lettuce." HortScience 47(12): 1768-1774.
  • Aegerter, B.; Cahn, M., et al. (2011). Asparagus production in California. ANR (Agriculture and Natural Resources). Publication 7234. http://anrcatalog.ucdavis.edu
  • Bugg, R.; Smith, R., et al. (2011). Botany and species selection. Cover Cropping For Vegetable Production: A Grower’s Handbook.R. Smith, R. Bugg, O. Daugovish, M. Gaskell and M. VanHorn. DANR (Division of Agriculture and Natural Resources) Publication.
  • Le Strange, M.; Cahn, M., et al. (2011). Broccoli production in California. ANR (Agriculture and Natural Resources). Publication 7211. http://anrcatalog.ucdavis.edu
  • Smith, R.; Aguiar, J., et al. (2011). Chili pepper production in California. ANR (Agriculture and Natural Resources). Publication 7244. http://anrcatalog.ucdavis.edu
  • Smith, R.; Bi, J., et al. (2011). Cilantro production in California. ANR (Agriculture and Natural Resources). Publication 7236. http://anrcatalog.ucdavis.edu
  • Brennan, E.; Boyd, N., et al. (2011). "Comparison of rye and legume-rye cover crops mixtures for vegetable production in California." Agronomy Journal 103(2): 449-463.
  • Smith, R. (2011). Cover crops for nutrient management in organic strawberry production on the central coast. Organic Strawberry Production Manual.S. Koike, C. Bull, M. Bolda and O. Daugovish. DANR (Division of Agriculture and Natural Resources) Publication.
  • Smith, R.; Biscaro, A., et al. (2011). Fresh market bulb onion production in California. ANR (Agriculture and Natural Resources). Publication 7242. http://anrcatalog.ucdavis.edu
  • Smith, R.; Cahn, M., et al. (2011). Green onion production in California. ANR (Agriculture and Natural Resources). Publication 7243. http://anrcatalog.ucdavis.edu
  • Turini, T.; Cahn, M., et al. (2011). Head lettuce production in California. ANR (Agriculture and Natural Resources). Publication 7215. http://anrcatalog.ucdavis.edu
  • Bugg, R.; Smith, R. (2011). Introduction to Cover cropping for vegetable production. Cover Cropping For Vegetable Production: A Grower’s Handbook.R. Smith, R. Bugg, O. Daugovish, M. Gaskell and M. VanHorn. DANR (Division of Agriculture and Natural Resources) Publication.
  • Muramoto, J.; Smith, R., et al. (2011). "Nitrogen contribution of legume/cereal mixed cover crops and organic fertilizers to an organic broccoli crop." HortScience 46(8): 1154-1162.
  • Smith, R.; Lanini, T. (2011). Organic vegetable weed control. Oakland, CA, University of California, Division of Agriculture and Natural Resources.
  • Aegerter, B.; Nunez, J., et al. (2011). Regional differences in cover crop management. Cover Cropping For Vegetable Production: A Grower’s Handbook.R. Smith, R. Bugg, O. Daugovish, M. Gaskell and M. VanHorn. DANR (Division of Agriculture and Natural Resources) Publication.
  • Gaskell, M.; Smith, R., et al. (2011). Soil nitrogen fertility management. Cover Cropping For Vegetable Production: A Grower’s Handbook.R. Smith, R. Bugg, O. Daugovish, M. Gaskell and M. VanHorn. DANR (Division of Agriculture and Natural Resources) Publication.
  • Koike, S.; Cahn, M., et al. (2011). Spinach production in California. ANR (Agriculture and Natural Resources). Publication 7212. http://anrcatalog.ucdavis.edu
  • Brennan, E.; Daugovish, O., et al. (2011). Weed management. Cover Cropping For Vegetable Production: A Grower’s Handbook.R. Smith, R. Bugg, O. Daugovish, M. Gaskell and M. VanHorn. DANR (Division of Agriculture and Natural Resources) Publication.
  • Fennimore, S.; Tourte, L., et al. (2010). Evaluation and economics of a machine-vision guided cultivation system in broccoli and lettuce. Weed Technology. 24, 33-38. http://www.bioone.org/doi/abs/10.1614/WT-09-022.1
  • Smith, R.; Cahn, M., et al. (2010). Leaf lettuce production in California. ANR (Agriculture and Natural Resources). Publication 7216. http://anrcatalog.ucdavis.edu
  • Hartz, T.; Smith, R., et al. (2010). "Nitrogen availability from liquid organic fertilizers." HortTechnology 20(1): 169-172.
  • Baumgartner, K.; Fujiyoshi, P., et al. (2010). "Weed flora and dormant-season cover crops have no effects on arbuscular mycorrhizae of grapevine." Weed Research 50: 456-466.
  • Smith, R.; Cudney, D., et al. (2009). Asparagus. UC IPM Pest Management Guidelines. http://www.ipm.ucdavis.edu/
  • Boyd, N.; Brennan, E., et al. (2009). "Effect of seeding rate and planting arrangement on rye cover crop and weed growth." Agronomy Journal 101(1): 47-51.
  • Bensen, T.; Smith, R., et al. (2009). "Mustard and other cover crop effects vary on lettuce drop caused by Sclerotinia minor and weeds." Plant Disease 93(10): 1019-1027.
  • Brennan, E.; Boyd, N., et al. (2009). "Seeding rate and planting arrangement effects on growth and weed suppression of a legume oat cover crop for organic vegetable systems." Agronomy Journal 101(4): 979-988.
  • Smith, R.; Baameur, A., et al. (2008). Artichoke production in California. Agriculture and Natural Resources. Publication No. 7221 2008 revision. http://anrcatalog.ucdavis.edu
  • Daugovish, O.; Smith, R., et al. (2008). Celery production in California. Agriculture and Natural Resources. Publication No. 7220 2008 revision. http://anrcatalog.ucdavis.edu
  • Chen, W.; Li, L., et al. (2008). "Characterizing the solid-solution partitioning coefficient and plant uptake factor of As, Cd, and Pb in California croplands." Agriculture, Ecosystems and Environment 129: 212-220.
  • Slaughter, D.; Giles, D., et al. (2008). Multispectral Machine Vision Identification of Lettuce and Weed Seedlings for Automated Weed Control. Weed Technology. 22, 378-384.
  • Hogue, M.; Ajwa, H., et al. (2008). "Nitrite and ammonium toxicity of lettuce grown under hydroponics." Communications in Soil Science and Plant Analysis 39: 207-216.
  • Tourte, L.; Smith, R., et al. (2008). Post-emergence herbicides are cost effective for vineyard floor management on the Central Coast. California Agriculture. 62:1, 19-23.
  • Smukler, S.; Jackson, L., et al. (2008). "Transition to large-scale organic vegetable production in the Salinas Valley, California." Agricultural Ecosystems and Environment 126: 168-188.
  • Smith, R.; Bettiga, L., et al. (2008). Vineyard floor management affects soil, plant nutrition and grape yield and quality. California Agriculture. 69:4, 184-190.
  • Smith, R.; Cudney, D., et al. (2007) Clover pest note.
  • Smith, R.; Fennimore, S., et al. (2007). Cole crops. UC IPM Pest Management Guidelines. http://www.ipm.ucdavis.edu/
  • Davis, R.; Hao, J., et al. (2007). "Efficacy of germination stimulants of Sclerotium cepivorum for management of white rot of garlic." Plant Disease 91(2): 204-208.
  • Hartz, T.; Johnstone, P., et al. (2007). Establishing lettuce leaf nutrient optimum ranges through DRIS analysis. HortScience. 42:1, 143-147.
  • Daugovish, O.; Fennimore, S., et al. (2007). Herbicide evaluation for fresh market celery. Weed Technology. 21, 719-723.
  • Smith, R.; Fennimore, S., et al. (2007). Lettuce. UC IPM Pest Management Guidelines. http://www.ipm.ucdavis.edu/
  • Gaskell, M.; Smith, R. (2007). "Nitrogen sources for organic vegetable production." HortTechnology 17(4): 431-441.
  • Smith, R.; Daugovish, O., et al. (2007). Pepper. UC IPM Pest Management Guidelines. http://www.ipm.ucdavis.edu/
  • Hartz, T.; Johnstone, P., et al. (2007). Soil calcium status unrelated to tipburn of lettuce. HortScience. 42:7, 1681-1684.
  • DiTomaso, J.; Kyser, G., et al. (2006). "Integrating prescribed burning and clopyralid for the management of yellow starthistle (Centaurea solstitialis)." Weed Science 54: 757-767.
  • Smith, R.; Fennimore, S., et al. (2006). Onion. UC IPM Pest Management Guidelines. http://www.ipm.ucdavis.edu/
  • Gaskell, M.; Smith, R., et al. (2006). Soil fertility management for oganic crops. DANR (Division of Agriculture and Natural Resources). Publication No. 7249.
  • Baumgartner, K.; Smith, R., et al. (2005). "Weed control practices and cover crop management affect mycorrhizal colonization of grapevine roots and arbuscular mycorrhizal fungal spore populations in a California vineyard." Mycorrhiza 15: 111-119.
  • Brennan, E.; Smith, R. (2005). Winter cover crop growth and weed suppression on the Central Coast of California. Weed Technology. 19, 1017-1024.
  • Koike, S.; Smith, R., et al. (2004). "Leaf and stem spot caused by Ramularia sphaeroidea on purple and lana woollypod vetch (Vicia spp.) cover crops in California." Plant Disease 88(2): 221.
  • Bhat. R.; Smith, R., et al. (2003). "Characterization of Verticillium dahliae isolates and wilt epidemics of pepper." Plant Disease 87(7): 789-797.
  • Pettycove, G.; Hartz, T., et al. (2003). Management goals and recommended practices: nutrient management goals and recommended practices for cool-season vegetables. DANR (Division of Agriculture and Natural Resources). Publication No. 8097.
  • Koike, S.; Smith, R., et al. (2001). "Characterization and control of garlic rust in California." Plant Disease 85(6): 585-591.
  • Koike, S.; Smith, R. (2001). "First report of rust caused by Puccinia allii on wild garlic in California." Plant Disease 85(12): 1290.
  • Gaskell, M.; Fouche, C., et al. (2001). "Organic vegetable production in California – science and practice." HortTechnology 10(4): 699-713.
  • Koike, S.; Smith, R., et al. (2001). Rust disease continues to threaten California garlic crop. California Agriculture. 55:5, 35-39.
  • Fennimore, S.; Smith, R., et al. (2001). Weed management in fresh market spinach (Spinacia oleracea) with S-metolachlor. Weed Technology. 15, 511-516.
  • Fouche, C.; Gaskell, M., et al. (2000). Insect pest management for organic crops. DANR (Division of Agriculture and Natural Resources). Publication No. 7251.
  • Gaskell, M.; Smith, R., et al. (2000). Organic certification, farm production planning and marketing. DANR (Division of Agriculture and Natural Resources). Publication No. 7247.
  • Koike, S.; Garrison, N., et al. (2000). Plant disease management for organic crops. DANR (Division of Agriculture and Natural Resources). Publication No. 7252.
  • Gaskell, M.; Mitchell, J., et al. (2000). Soil fertility management for organic crops. DANR (Division of Agriculture and Natural Resources). Publication No. 7249.
  • Mitchell, J.; Gaskell, M., et al. (2000). Soil management and soil quality for organic crops. DANR (Division of Agriculture and Natural Resources). Publication No. 7248.
  • Smith, R.; Lanini, T., et al. (2000). Weed management for organic crops. DANR (Division of Agriculture and Natural Resources). Publication No. 7250.
  • Smith, R.; Henderson, D. (1999). Crop profile for beans (green) in California. USDA Office of Pest Management Policy and the Pesticide Impact Assessment Program website. http://pestdata.ncsu.edu/cropprofiles/Detail.CFM?FactSheets__RecordID=183
  • Voss, R.; Philips, H., et al. (1999). New specialty potato varieties give farmers growing and marketing options. California Agriculture. 53:6, 16-20.
  • Smith, R. (1999). Onion varieties evaluated for yield and pink root tolerance. Biological and Cultural Tests for Control of Plant Diseases. 14, 163.
  • Smith, R.; Koike, S., et al. (1999). Several options for control of powdery mildew of peppers. California Agriculture. 53:6, 40-43.
  • Smith, R.; Jimenez, M., et al. (1999). Tomatillo Production in California. Vegetable Production Series. Vegetable Research and Information Center, DANR (Division of Agriculture and Natural Resources). Publication No. 7246.
  • Smith, R.; Hartz, T., et al. (1998). Chile (Hot) Pepper Production in California. Vegetable Production Series. Vegetable Research and Information Center, DANR (Division of Agriculture and Natural Resources).
  • Laemmlen, F.; Smith, R. (1998). Cilantro Production in California. Vegetable Research and Information Center. Vegetable Production Series. DANR (Division of Agriculture and Natural Resources). Publication 7236.
  • Koike, S.; Smith, R. (1998). "First report of powdery mildew caused by Sphaerotheca fusca on tomatillo in California." Plant Disease 82: 711.
  • Pettycove, G.; Grattan, S., et al. (1998). Production Guide: Nitrogen and Water Management for Coastal Cool-Season Vegetables. DANR (Division of Agriculture and Natural Resources). Publication 21581.
  • Koike, S.; Smith, R., et al. (1997). "Association of the insecticide naled with celery petiole lesion damage." Crop Protection 16(8): 753-758.
  • Koike, S.; Smith, R., et al. (1997). Cover crops can increase lettuce drop. California Agriculture. 51, 15-18.
  • Smith, R.; Chaney, D. (1997). Lygus integrated pest management in strawberries. DANR (Division of Agriculture and Natural Resources). Publication V97-D & E.
  • Gaskell, M.; Smith, R. (1997). Pumpkin Production in California. Vegetable Production Series. Vegetable Research and Information Center, DANR (Division of Agriculture and Natural Resources). Publication 7222.
  • Smith, R.; Koike, S. (1997). Response of resistant squash varieties to zucchini yellow mosaic virus. Biological and Cultural Tests for Control of Plant Diseases. 12, 173.
  • Smith, R.; Aguiar, J., et al. (1997). Sweet Corn Production in California. Vegetable Production Series. Vegetable Research and Information Center, DANR (Division of Agriculture and Natural Resources). Publication 7223.
  • Koike, S.; Smith, R., et al. (1996). "A new bacterial disease of arrugula in California." Plant Disease 80
  • Hartz, T.; Le Strange, M., et al. (1996). Bell Pepper Production in California. Vegetable Research and Information Center. Vegetable Production Series. DANR (Division of Agriculture and Natural Resources). Publication 7217.
  • Smith, R.; Buchanan, M. (1996). Control of Soil-Borne Onion Diseases with Compost. Biological and Cultural Tests for Control of Plant Diseases. 11, 107.
  • Hoffmann, M.; Kirkwyland, J., et al. (1996). "Field tests with kairomone-baited traps for cucumber beetles and corn rootworms in curcurbits." Environmental Entomology, Physiological and Chemical Ecology 25(1173)
  • Grafton-Cardwell, E.; Perring, T., et al. (1996). "Occurrence of Mosaic Viruses in Melons in the Central Valley." Plant Disease 80: 1092-1097.
  • Koike, S.; Smith, R., et al. (1996). "Phacelia, Lana Woollypod Vetch, and Austrian Winter Pea: Three New Cover Crop Hosts of Sclerotinia minor in California." Plant Disease 80: 1049-1412.
  • Hartz, T.; Smith, R., et al. (1994). On-farm nitrogen tests improve fertilizer efficiency, protect groundwater. California Agriculture. 48:4, 29-32.
  • Smith, R. (1994). Small Farm Handbook. DANR (Division of Agriculture and Natural Resources).
  • Hartz, T.; Smith, R., et al. (1993). "On-farm monitoring of soil and crop nitrogen status by nitrate-selective electrode." Communications in Soil Science and Plant Analysis 24(19&20): 2607-2615.
  • Jackson, L.; Wyland, L., et al. (1993). Winter cover crops can decrease soil nitrate, leaching potential. California Agriculture. 47:5, 12-15.
  • Smith, R. (1992). Pepper Weed Control Guidelines. UC IPM Pest Management Guidelines. U.C. Davis.
  • Koike, S.; Smith, R., et al. (1992). Resistant Cultivars, Fungicides Combat Downy Mildew of Spinach. California Agriculture. 46:2, 39-30.
  • Smith, R. (1992). Specialty Summer Squashes. DANR (Division of Agriculture and Natural Resources).
  • Hickman, G.; Perry, E., et al. (1989). Growth regulator controls tomato transplant height. California Agriculture. 43:5, 19-20.

Non-Peer Reviewed

  • Smith, R.F. (2019). Causes of spots on spinach. UCCE Monterey County Blog. April 10. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=29890
  • Smith, R.F.; Cahn, M. (2019). Details on the nitrate quick test. UCCE Monterey County Blog. April 1. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=4406
  • Smith, R.F.; Cahn, M. (2019). Fate of surface aapplied nitrogen in season-long drip irrigated fields. UCCE Monterey County Blog. Aug 5. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=30993
  • Smith, R.F.; Muramoto, J, et al. (2019). Immobilization of nitrate in fallow winter vegetable production beds. UCCE Monterey County Blog. Jan 3. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=29071
  • Smith, R.F. (2019). New Developments in Spinach Production. American Vegetable Grower. 26-28. March.
  • Smith, R.F. (2019). Organic soil fertility for production of leafy green vegetables. Proceedings of the California Chapter of the American Society of Agronomy. 88-92. Feb.
  • Smith, R.F. (2019). Unseen benefits of improved soil health. American Vegetable Grower. August.
  • Smith, R.F. (2019). Weed control in lettuce. UCCE Monterey County Blog. July 18. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=30847
  • Smith, R.F. (2019). Weed control in organic cool-season vegetable production. Organic Farmer. 2:1, 22-28.
  • Smith, R.F. (2019). Weed control options for dry bulb onions. CAPCA Advisor. 22:4, 32-36.
  • Smith, R.F. (2019). Weed control studies in leeks. UCCE Monterey County Blog. Dec 4. https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=38894
  • Smith, R.F. (2018). Automated thinner and weeder technology. Applicator Alerts, CAPCA. 3:4. November.
  • Doohan, D.; Gallandt, E., et al. (2014). "Expert and farmer "Mental Models" for weed management in organic farming systems". 10th EWRS Workshop on Physical and Cultural Weed Control. Alnarp: European Weed Research Society. March 2014.
  • Murphy, L.; Cahn, M., et al. (2014). Accuracy of nitrate test strips for assessing nitrate levels in soils and water. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=13140
  • Parker, J.; Smith, R., et al. (2014). “Let’s Talk: Organic Farm Research and Conversations with Farmers that Lead to Developing Better Weed Management Programs”. Annual Meeting Society for Applied Anthropology. Albuqurque, NM. March 18-22, 2014.
  • Smith, R.; Shaw, J. (2014). Evaluation of the impact of organic weed control practices on soil seed banks of organic farms in California, USA. 10th EWRS Workshop on Physical and Cultural Weed Control. Alnarp: European Weed Research Society. March 2014.
  • Smith, R. (2014). Zinc nutrition of soils and crops in the Salinas Valley. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=13140
  • Smith, R. (2013). Broadleaf weed control in cilantro. UCCE Monterey County. April 2, 2013. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=9666
  • Cahn, M.; Smith, R., et al. (2013). CropManage: A web-based irrigation and nitrogen management tool. 2013 California Plant and Soil Conference, Visalia, CA.
  • Smith, R. (2013). Finger weeders available in the US. UCCE Monterey County. March 22, 2013. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=9594
  • Smith, R.; Koike, S. (2013). Frost damage on lettuce. UCCE Monterey County. January 11, 2013. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=9594
  • Smith, R. (2013). Growing lettuce: It all starts with getting a good stand. American Vegetable Grower. December 2013.
  • Smith, R.; Bettiga, L., et al. (2013). Impact of vineyard floor management practices on weed communities and soil quality. HortScience. 48:9, 98. July 22-25, 2013.
  • Cahn, M.; Smith, R., et al. (2013). Irrigation and nitrogen management web-based software for lettuce production. HortScience. 48:9, 212.
  • Cahn, M.; Smith, R., et al. (2013). Irrigation and nitrogen management web-based software for lettuce production. Western Nutrientt Management Conference, Reno, NV.
  • Joseph, S.; Smith, R. (2013). Occurance and abundance of bagrada bug on brassica crops and weeds. UCCE Monterey County. September 30, 2013. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=11632
  • Smith, R. (2013). Onion weed control trials. Vegetables West. 17:2, 14-15. February.
  • Cahn, M.; Smith, R. (2013). Reducing sediment loss and protecting water quality in coastal vegetables. 2013 California Plant and Soil Conference, Visalia, CA.
  • Smith, R. (2013). Spinach: the resilient vegetable. American Vegetable Grower. July 2013.
  • Smith, R. (2013). Weed control options for dry bulb onion. CAPCA (California Association of Pest Control Advisers) Advisor. 16:3, 26-29.
  • Smith, R.; Tjosvold, S. (2012). 2010-2011 Roadside weed control evaluation with organic and conventional herbicides. Weed Research and Information Center. June 26, 2012. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=7798
  • Smith, R.; Heinrich, A. (2012). Alternative cultivators for organic vegetable production. On-line video. : http://www.youtube.com/watch?v=I4kzebMG6rE
  • Smith, R.; Bettiga, L., et al. (2012). Benefits and drawbacks of in-row cover croips in vineyards. 64th Annual California Weed Science Society Meeting, Santa Barbara.
  • Smith, R. (2012). Changing vegetable production practices. American Vegetable Grower. December 2012.
  • Smith, R. (2012). High residual soil nitrate levels this spring. March 23, 2012. http://ucanr.org/blogs/blogcore/postdetail.cfm?postnum=7102
  • Smith, R. (2012). Improving nitrogen use efficiency in intensive vegetable production. California Chapter of the American Society of Agronomy Meeting, Visalia.
  • Cahn, M.; Smith, R. (2012). Improving water and nitrogen efficiency in lettuce. California Chapter of the American Society of Agronomy Meeting, Visalia.
  • Hartz, T.; Smith, R. (2012). In-season soil nitrate testing explained. Monterey County Crop Notes. August/September 2012.
  • Smith, R.; Fennimore, S., et al. (2012). Machine guided cultivation to control weeds in field-grown cut flowers. 64th Annual California Weed Science Society Meeting, Santa Barbara.
  • Smith, R. (2012). Mechanical weed control tools for vegetables. Weed Research and Information Center & UCCE Monterey County. March 19, 2012. http://ucanr.org/blogs/blogcore/postdetail.cfm?postnum=7038;
  • Smith, R.; Cahn, M. (2012). Nitrate to nitrogen conversion and estimating nitrogen contribution from irrigation water containing nitrate. UCCE Monterey County. June 15, 2012. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=7744
  • Smith, R.; Heinrich, A. (2012). Nitrogen uptake by spinach: results of the 2011 evaluations. Monterey County Crop Notes. March-April 2011.
  • Smith, R. (2012). Nutrient Management for Intensive Vegetable Crop Production. American Vegetable Grower. May 21-22, 2012.
  • Smith, R.; Koike, S. (2012). Occurrence of black root rot of lettuce. UCCE Monterey County. July 30, 2012. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=8029
  • Smith, R.; Bettiga, L., et al. (2012). Options for controlling marestail and hairy fleabane in vineyards. Weed Research and Information Center. December 17, 2012. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=8913
  • Smith, R. (2012). Prometryn registered for use on cilantro. Weed Research and Information Center. October 10, 2012. http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=8479
  • Bottoms, T.; Hartz, T., et al. (2012). Reducing nitrate loading from tile drain effluent through the use of denitrification bioreactors. ASA-CSSA-SSSA International Annual Meeting (American Society of Agronomy-Crop Science Society of America-Soil Science Society of America). Cincinnati, OH. October 21-24, 2012. http://scisoc.confex.com/scisoc/2012am/webprogram/Paper73023.html
  • Hartz, T.; Cahn, M., et al. (2012). Remediation of tile drain water using denitrification bioreactors. 20th Annual CDFA (California Department of Food and Agriculture) Fertilizer Research and Education Program Conference, Modesto, CA.
  • Smith, R. (2012). Silvering defect on red pepper fruit. UCCE Monterey County. October 8, 2012. http://ucanr.org/blogs/blogcore/postdetail.cfm?postnum=8453
  • Smith, R.; Cahn, M., et al. (2012). Survey of nitrogen uptake and applied irrigation water in broccoli, cauliflower, and cabbage production in the Salinas Valley. 20th Annual CDFA (California Department of Food and Agriculture) Fertilizer Research and Education Program Conference, Modesto, CA.
  • Smith, R. (2012). Weed control options for fresh market spinach. CAPCA (California Association of Pest Control Advisers) Advisor. 15:6, 31-33.
  • Tjosvold, S.; Smith, R. (2011). Alternative roadside weed control in Santa Cruz County. 63rd Annual California Weed Science Society Meeting, Monterey.
  • Smith, R. (2011). Details on the nitrate quick test. May 24, 2011. http://cemonterey.ucdavis.edu/
  • Smith, R. (2011). Fertilizer burn issues on lettuce. May 24, 2011. http://cemonterey.ucdavis.edu/
  • Smith, R.; Cahn, M. (2011). Impact of low-residue winter cover crops on sediment and nutrient loss. 19th Annual CDFA (California Department of Food and Agriculture) Fertilizer Research and Education Program Conference, Tulare, CA.
  • Smith, R. (2011). Improving nitrogen use efficiency in lettuce production. California Chapter of the American Society of Agronomy Meeting, Fresno.
  • Smith, R.; Cahn, M., et al. (2011). Low residue winter cover crops for winter fallow vegetable production fields: summary of two years of evaluations. Monterey County Crop Notes. November-December 2011.
  • Smith, R.; Hartz, T., et al. (2011). Overview of tipburn on lettuce. August 25, 2011. http://cemonterey.ucdavis.edu/
  • Smith, R.; Pettycove, G. (2011). Potassium fertility of Salinas Valley soils. October 21-25, 2011. http://cemonterey.ucdavis.edu/
  • Smith, R.; Pettycove, G. (2011). Potassium fertility of Salinas Valley soils. Monterey County Crop Notes. November-December 2011.
  • Smith, R.; Heinrich, A. (2011). Preliminary evaluation of spinach nitrogen nutrition. Monterey County Crop Notes. May/June 2011.
  • Smith, R. (2011). Spinach weed control: where have we been and where are we now. Monterey County Crop Notes. March/April 2011.
  • Smith, R.; Hartz, T., et al. (2011). Summary of nitrification inhibitor trials. Central Coast Agricultural Highlights. March 2011.
  • Smith, R. (2011). Technical innovation in weeding and thinning vegetables. American Vegetable Grower. 36-38. October 2011.
  • Smith, R. (2011). Weed control options for leafy vegetables. CAPCA (California Association of Pest Control Advisers) Advisor. 14:3, 26-29.
  • Smith, R. (2011). Weed control strategies in peppers. CAPCA (California Association of Pest Control Advisers) Advisor. 14:6, 41-42.
  • Smith, R. (2011). Weed control trials in peppers. Pepper News. 3-4. May 2011.
  • Koike, S.; Smith, R. (2010). Calcium deficiency disorders hit central coast vegetable crops. September 18, 2010. http://cemonterey.ucdavis.edu/
  • Smith, R. (2010). Careful nitrogen management in second crop of lettuce. June 3, 2010. http://cemonterey.ucdavis.edu/
  • Hartz, T.; Smith, R., et al. (2010). Efficient phosphorus management for vegetable production. On-line educational module. http://groups.ucanr.org/nutrientmanagement/Educational_modules/
  • Fennimore, S.; Smith, R., et al. (2010). Evaluation of a robotic cultivator for vegetable production in California. California Weed Science Society Journal. V6:2, 5-6.
  • Koike, S.; Cahn, M., et al. (2010). Examination of the survival and internalization of E. coli on spinach under field conditions. Center for Produce Safety Project Report. April 1, 2010.
  • Koike, S.; Cahn, M., et al. (2010). Field survival of E. coli in a spinach production system. California Leafy Greens Research Board Progress Report. October 5, 2010.
  • Smith, R. (2010). Fine tuning nitrogen management for vegetable production. Monterey County Crop Notes. March-April 2010.
  • Hartz, T.; Smith, R., et al. (2010). Improvig fertilizer management in coastal vegetable production. On-line educational module. http://groups.ucanr.org/nutrientmanagement/Educational_modules/
  • Hartz, T.; Smith, R., et al. (2010). Irrigation and nutrient management for water quality protection: coastal vegetable production. On-line educational module. http://groups.ucanr.org/nutrientmanagement/Educational_modules/
  • Smith, R.; Cahn, M., et al. (2010). Low residue cover crops for intensive vegetable production. On-line video. http://www.youtube.com/watch?v=k0oVVJ_BA7s
  • Hartz, T.; Smith, R., et al. (2010). Manageing calcium in vegetable crop production. On-line educational module. On-line educational module. http://groups.ucanr.org/nutrientmanagement/Educational_modules/
  • Smith, R.; Cahn, M., et al. (2010). Minimize run-off, erosion and nutrient loss. Vegetables West. 8-11. November-December.
  • Smith, R. (2010). Minor crop herbicide update. August 24, 2010. http://cemonterey.ucdavis.edu/
  • Smith, R. (2010). New proposed regulations will affect nutrient management of leafy green vegetables. Monterey County Crop Notes. November-December 2010.
  • Smith, R. (2010). New regulations proposed with affect nutrient management of leafy green vegetables. November 30, 2010. http://cemonterey.ucdavis.edu/
  • Smith, R.; Heinrich, A. (2010). Nitrate leaching in vegetable production may be difficult to interpret. April 23, 2010. http://cemonterey.ucdavis.edu/
  • Hartz, T.; Smith, R., et al. (2010). Nitrogen availability from liquid organic fertilizers. Vegetables West. 14:2, 10-11.
  • Tourte, L.; Smith, R. (2010). Sample costs to produce wrapped iceberg lettuce. University of California Special Publication. LT-CC-10.
  • Cahn, M.; Smith, R. (2010). Summary of 2008-09 large scale irrigation and nitrogen fertilizer management trials in lettuce. Monterey County Crop Notes. March-April 2010.
  • Koike, S.; Cahn, M., et al. (2010). Survival and biology of E. coli under field production environments. California Leafy Greens Research Board 2008-2009 Annual Report. http://www.calgreens.org
  • Koike, S.; Cahn, M., et al. (2010). Survival of E. coli under a commercial spinach production environment. Food Safety and Water Quality Co-management Forum. Watsonville. December 8, 2010.
  • Smith, R.; Ruiz, M. (2009). Carrot weed control trial 2008. Monterey County Crop Notes. March-April 2009.
  • Smith, R. (2009). Dry bulb onion weed control strategies. California Weed Science Society Journal. V5:1, 2-3.
  • Hartz, T.; Smith, R. (2009). Efficient nitrogen management in drip-irrigated lettuce. Vegetables West. 13:3, 10-11.
  • Bettiga, L.; Smith, R., et al. (2009) Evaluation of in-row cover cropping as a vineyard management tool. 16th International Symposium of the Group of International Experts of Vitivinicultural Systems for Cooperation 16, 55-57
  • Bettiga, L.; Smith, R., et al. (2009). Evaluation of the impacts of in-row vineyard floor management practices on soil and water erosion, vine growth and productivity, weed control, and the economics of wine grape production. Viticulture Consortium 2008 Annual Progress Report. 25.
  • Smith, R.; Cahn, M., et al. (2009). Farming closer to the edge. Monterey County Crop Notes. July-August 2009.
  • Smith, R.; Cahn, M., et al. (2009). Growth rate of lettuce: implications for nitrogen fertilization. HortScience. 44:4, 1023.
  • Smith, R.; Cahn, M., et al. (2009). Growth rate of lettuce: Implications for nitrogen fertilization of lettuce. California Chapter of the American Society of Agronomy Annual Meeting, Fresno.
  • Smith, R.; Cahn, M. (2009). Impact of low-residue winter cover crops on sediment and nutrient loss. 17th CDFA (California Department of Food and Agriculture) Fertilizer Research and Education Program Conference, Visalia, CA.
  • Cahn, M.; Smith, R. (2009). Large scale irrigation and nitrogen fertility management in lettuce. Monterey County Crop Notes. May-June 2009.
  • Burger, M.; Bottoms, T., et al. (2009). Nitrous oxide emissions in response to nitrogen fertilization in lettuce production systems. 239th American Chemical Society Annual Meeting. San Francisco, CA. March 21-25, 2010.
  • Smith, R.; Daugovish, O. (2009). Nutsedge control in onions. California Weed Science Society Annual Meeting, Sacramento.
  • Smith, R.; Ruiz, M. (2009). Nutsedge control in onions. Monterey County Crop Notes. January-February 2009.
  • Smith, R.; Fennimore, S. (2009). Preemergence Weed Control in Celery. California Celery Research Advisory Board Annual Report 2007-08. 35-48.
  • Smith, R.; Klonsky, K., et al. (2009). Sample costs to produce iceberg lettuce. University of California Special Publication. LT-CC-09-2. http://coststudies.ucdavis.edu/files/lettuceicecc09.pdf
  • Tourte, L.; Smith, R., et al. (2009). Sample costs to produce organic leaf lettuce. University of California Special Publication. LT-CC-09-0. http://coststudies.ucdavis.edu/files/lettuceleaforganiccc09.pdf
  • Smith, R.; Klonsky, K., et al. (2009). Sample costs to produce romaine hearts leaf lettuce. University of California Special Publication. LT-CC-09-1. http://coststudies.ucdavis.edu/files/lettuceromcc09.pdf
  • Koike, S.; Cahn, M., et al. (2009). Survival and biology of E. coli under field production environments. California Leafy Greens Research Board 2008-2009 Annual Report. http://www.calgreens.org
  • Fennimore, S.; Smith, R. (2009). Weed management in lettuce. Monterey County Crop Notes. July-August 2009.
  • Fennimore, S.; Lanini, T., et al. (2009). What is the role of organic herbicides in California? California Weed Science Society Journal. 5:1, 4-5.
  • Chaney, D.; Green, C., et al. (2009). Zinc Fertilization Plus Liming to Reduce Cadmium Uptake by Romaine Lettuce on Cd-Mineralized Lockwood Soil. Zinc Fertilization Plus Liming to Reduce Cadmium Uptake by Romaine Lettuce on Cd-Mineralized Lockwood Soil. Paper 1252. http://repositories.cdlib.org/ipnc/xvi/1252
  • Smith, R. (2008). Dry bulb onion weed control strategies. Monterey County Crop Notes. March-April 2008.
  • Hartz, T.; Smith, R. (2008). Efficient nitrogen management in drip irrigated lettuce production. Monterey County Crop Notes. March-April 2008.
  • Salmon, T.; Smith, R., et al. (2008). Food safety in Salinas Valley crops: 3. Rodent in leafy green vegetable production. Monterey County Crop Notes. May-June 2008.
  • Smith, R.; Cahn, M., et al. (2008). Full Season Drip Irrigation in Lettuce – Impact on Weed Control. California Weed Science Society Annual Meeting, Monterey.
  • Smith, R.; Cahn, M. (2008). Low residue cover crops for fallow vegetable fields on the central coast. California Chapter of the American Society of Agronomy Annual Meeting, Visalia.
  • Smith, R.; Cahn, M., et al. (2008). Low residue winter cover crops: an evaluation of their management in winter fallow vegetable production beds in the Salinas Valley. Monterey County Crop Notes. September-October 2008.
  • Smith, R.; Hartz, T. (2008). Phosphorus fertilizer management for lettuce production and water quality protection. Monterey County Crop Notes. November-December 2008.
  • Smith, R.; Hartz, T. (2008). Phosphorus fertilizer management for lettuce production and water quality protection. Farm Water Quality News. 1.
  • Smith, R.; Fennimore, S. (2008). Preemergence Weed Control in Celery. California Celery Research Advisory Board Annual Report 2006-07. 39-52.
  • Smith, R.; Fennimore, S. (2008). UC studies improve the efficiency of weed control in broccoi production. UC Delivers. October 1, 2008. http://ucanr.org/delivers/
  • Koike, S.; Cahn, M., et al. (2008). UCCE investigates how E. coli survives in vegetable fields. UC Delivers Success Story. October 17, 2008. http://ucanr.org/delivers/
  • Smith, R.; Fennimore, S. (2008). Weed control in lettuce: challenges exist now and in the future. Vegetables West. 12:2, 12-13.
  • Smith, R.; Le Strange, M. (2008). Weed control trials in peppers. Pepper News. 2. May 2008.
  • Chaney, D.; Solis Dominguez, F., et al. (2008). Zinc fertilization plus liming to reduce cadmium uptake by romaine lettuce on Lockwood soil. American Society of Agronomy Annual Meeting.
  • Hartz, T.; Cahn, M., et al. (2007). Co-Managing nutrients and runoff in vegetable and row crops on the Central Coast: What really works. National Conference on Agriculture and the Environment. Monterey, California. November 7-9, 2007.
  • Cahn, M.; Smith, R., et al. (2007). Controlling storm run-off in vegetable fields. Vegetables West. 11:2, 8-9.
  • Cahn, M.; Smith, R., et al. (2007). Cultural strategies for germinating lettuce with drip irrigation. California Lettuce Research Board Annual Report 2006-2007. 155-163.
  • Hartz, T.; Cahn, M., et al. (2007). Detecting and correcting soil calcium limitations. Monterey County Crop Notes. July-August 2007.
  • Hartz, T.; Cahn, M., et al. (2007). Detecting and correcting soil calcium limitations. Vegetables West. 11:3, 6-8.
  • Smith, R. (2007). Direct seeded broccoli postemergence weed control trial. Monterey County Crop Notes. May-June 2007.
  • Cahn, M.; Smith, R., et al. (2007). Germinating lettuce using drip irrigation. Monterey County Crop Notes. July-August 2007.
  • Smith, R. (2007). High-denisty plantings on 80-inch beds: a challenge for weed control. Coastal Grower. Winter, 32-33.
  • Smith, R.; Koike, S., et al. (2007). Mustard cover crops to optimize crop rotations for lettuce production. California Lettuce Research Board Annual Report. 147-153.
  • Muramoto, J.; Smith, R., et al. (2007). Nitrogen Contribution to Organic Broccoli from a Mixed Legume/Cereal Cover Crop. 2007. Annual Meeting of American Society of Agronomy. New Orleans, LA. November 4-7, 2007.
  • Muramoto, J.; Smith, R., et al. (2007). Nitrogen Uptake by Broccoli from a Legume/Cereal Mix Cover Crop. California Chapter of the American Society of Agronomy Conference, Sacramento, CA.
  • Udayagiri, S.; Koike, S., et al. (2007). Plagas en la fresa: Como identificar malezas, enfermedades, y insectos beneficos y nocivos para agricultores de fresa en la costa central de California. University of California Cooperative Extension, Monterey County.
  • Smith, R.; Fennimore, S., et al. (2007). Precision guided cultivation improves weed control in broccoli and lettuce production. European Weed Research Society workshop on Physical and Cultural Weed Control. Salem, Germany. 50.
  • Smith, R.; Fennimore, S. (2007). Preemergence Weed Control in Celery. California Celery Research Advisory Board Annual Report 2005-06. 57-66.
  • Smith, R.; Le Strange, M. (2007). Preemergence weed control trials in peppers. Pepper News. 1-2. May 2007.
  • Smith, R. (2007). Spinach weed control trials conducted in 2006. Monterey County Crop Notes. July-August 2007.
  • Cahn, M.; Smith, R., et al. (2007). Strategies for germinating lettuce with drip irrigation. HortScience. Scottsdale, AZ. 42:4, 900. July 2007.
  • Bettiga, L.; Smith, R., et al. (2007). Vineyard Floor Management - Evaluation of the impact on soil/water erosion, vine growth and productivity, weed control, and economics of wine grape production. Practical Winery and Vineyard. 29:3, 42-45.
  • Smith, R.; Fennimore, S., et al. (2007). Weed management for organic vegetable production on 80-inch beds. CAPCA (California Association of Pest Control Advisers) Advisor. 10:1.
  • Fennimore, S.; Smith, R., et al. (2007). Weed management systems for lettuce. California Lettuce Research Board Annual Report 2006-2007. 137-146.
  • Smith, R.; Cahn, M. (2007). Winter cover crops: strategies for including them in Salinas Valley vegetable rotations. Monterey County Crop Notes. September-October 2007.
  • Smith, R. (2006). 2005 Chemigation Evaluations with Kerb on Lettuce in the Salinas Valley. Monterey County Crop Notes. January-February 2006.
  • Koike, S.; Smith, R., et al. (2006). A review of pepper virus diseases. Vegetables West. 10:5, 12-13. May.
  • Smith, R.; Hammond, S. (2006). Annual planting and harvesting schedule for agricultural crops for Monterey County, California. Monterey County Special Publication.
  • Tourte, L.; Smith, R., et al. (2006). Central coast vineyard floor management practices and economics. UC Delivers.
  • Smith, R. (2006). Dry bulb onion weed control studies. Monterey County Crop Notes. March-April 2006.
  • Smith, R.; Bettiga, L., et al. (2006). Effects of vineyard floor management practices on soil physical, nutritional and microbial characteristics. American Society for Enology and Viticulture Meeting, Sacramento, CA.
  • Smith, R.; Bettiga, L., et al. (2006). Effects of vineyard floor management practices on the development of distinct weed communities in a California vineyards. California Weed Science Society Annual Meeting, Ventura.
  • Cahn, M.; Smith, R., et al. (2006). Evaluation of practices for controlling storm run-off from vegetable fields. Monterey County Crop Notes. November-December 2006.
  • Hartz, T.; Smith, R. (2006). How useful is petiole testing? Monterey County Crop Notes. May-June 2006.
  • Hartz, T.; Smith, R. (2006). Lettuce and cauliflower tissue testing and fertilization practices revisited. Vegetables West. 10:4, 12-13. April.
  • Smith, R.; Subbarao, K., et al. (2006). Levels of glucosinolates in varieties of mustards. International Biofumigation Conference, Moscow, ID.
  • Koike, S.; Smith, R., et al. (2006). Minor Vegetable Crops on the Coast Supported by Cooperative Extension. UC Delivers.
  • Smith, R.; Koike, S., et al. (2006). Mustard cover crops to optimize crop rotations for lettuce production. California Lettuce Research Board Annual Report. 217-222.
  • Koike, S.; Smith, R., et al. (2006). Pepper virus diseases: a review. Vegetable Notes. 8. February 2006.
  • Smith, R.; Bensen, T., et al. (2006). Phosphorus fertilizer evaluations on head lettuce in the Salinas Valley. Monterey County Crop Notes. March-April 2006.
  • Smith, R.; Bensen, T. (2006). Precision cultivation evaluations. Vegetables West. 10:6, 16-17.
  • Smith, R.; Le Strange, M. (2006). Preemergence weed control trials in peppers. Pepper News. April 2006.
  • Cahn, M.; Smith, R., et al. (2006). Strategies for using polyacrylamide (PAM) for germinating lettuce with drip irrigation. California Lettuce Research Board Annual Report 2005-2006. 225-233.
  • Smith, R.; Subbarao, K., et al. (2006). The Impact of Mustard Cover Crop Rotations with Lettuce on the Incidence of Lettuce Drop Caused by Sclerotinia minor. International Biofumigation Conference, Moscow, ID.
  • Hartz, T.; Smith, R. (2006). Tissue testing and fertilization practices revised for lettuce and cauliflower. Monterey County Crop Notes. May-June 2006.
  • Smith, R.; Le Strange, M. (2006). Trials with preemergence herbicides in transplanted bell peppers. Vegetable Notes. 8. February 2006.
  • Smith, R.; Le Strange, M. (2006). Weed control studies in transplanted bell peppers with preemergence herbicides. California Weed Science Society Annual Meeting, Ventura.
  • Smith, R.; Fennimore, S., et al. (2006). Weed management for organic vegetable production on 80-inch beds. Monterey County Crop Notes. September-October 2006.
  • Cahn, M.; Bolda, M., et al. (2006). Winter cover crops for reducing storm run-off and protecting water quality in strawberries. Monterey County Crop Notes. November-December 2006.
  • Smith, R.; Mou, B. (2005). 2004 Romaine variety trial evaluation for yellow spot on Romaine. Monterey County Crop Notes. March-April 2005.
  • Smith, R.; Bettiga, L., et al. (2005). Association of weed species with vineyard floor management practices in California. American Society for Enology and Viticulture Meeting, Seattle, WA.
  • Smith, R.; Koike, S., et al. (2005). Club root evaluation on mustard cover crops. Monterey County Crop Notes. March-April 2005.
  • Smith, R.; Koike, S., et al. (2005). Impact of mustard cover crop rotations with lettuce on the incidence of lettuce drop caused by Sclerotinia minor. 13th International Sclerotinia Workshop, Asilomar, California.
  • Smith, R.; Koike, S., et al. (2005). Mustard cover crops to optimize crop rotations for lettuce production. California Lettuce Research Board Annual Report. 211-219.
  • Smith, R.; Subbarao, K., et al. (2005). Mustard cover crops to optimize crop rotations for lettuce production. Monterey County Crop Notes. September-October 2005.
  • Smith, R.; Jackson, L., et al. (2005). Nitrate leaching in cool season vegetable production in the Salinas Valley. HortScience. 4, 1110.
  • Smith, R. (2005). Pepper weed control trial update. Monterey County Crop Notes. May-June 2005.
  • Smith, R. (2005). Precision Cultivation Evaluations. Monterey County Crop Notes. November-December 2005.
  • Smith, R.; Fennimore, S., et al. (2005). Preemergence Weed Control in Celery. California Celery Research Advisory Board Annual Report 2004-05. 55-64.
  • Smith, R.; Le Strange, M. (2005). Preemergence weed control trials in peppers. Pepper News. April 2005.
  • Hembree, C.; Smith, R., et al. (2005). Weed control research highlights in onions and garlic. Vegetable Notes. December 2005.
  • Smith, R. (2004). Brassica cover crops: impacts on plant nutrition and pest management. California Chapter of the American Society of Agronomy Meeting, Visalia, CA.
  • Brennan, E.; Boyd, N., et al. (2004). Cover crop seeding rate and planting orientation trial. Organic Matters. September 2004.
  • Smith, R. (2004). Cover crops as a soil management practice to improve nitrogen nutrition for organic vegetable production. California Organic Production and Farming in the New Millenium: A Research Symposium, Berkeley, CA, UC Sustainable Agricultural Research and Education Program, University of California, Davis.
  • Smith, R. (2004). Dry bulb and green onion weed control studies. Monterey County Crop Notes. May-June 2004.
  • Smith, R.; Mullen, R. (2004). Epidemiology and control of pepper stip. Kern Vegetable Crops. June 2004.
  • Smith, R.; Subbarao, K., et al. (2004). Mustard cover crops for control of soilborne disease and weeds, and nitrogen cycling in cool season vegetable production in the Salinas Valley. HortScience. 39, 832.
  • Smith, R. (2004). Mustard cover crops for weed control in spinach and broccoli. Monterey County Crop Notes. July-August 2004.
  • Smith, R.; Koike, S., et al. (2004). Mustard cover crops to optimize crop rotations for lettuce production. California Lettuce Research Board Annual Report. 199-203.
  • Smith, R. (2004). Phosphorus fertilizer trial on head lettuce. Monterey County Crop Notes. September-October 2004.
  • Smith, R. (2004). Post Emergence Organic Weed Control in Onions and Broccoli. Monterey County Crop Notes. November-December 2004.
  • Smith, R. (2004). Postemergence weed control studies on broccoli. Monterey County Crop Notes. March-April 2004.
  • Smith, R. (2004). Postemergence Weed Control Studies on Broccoli in the Salinas Valley. California Weed Science Society Meeting.
  • Smith, R.; Fennimore, S., et al. (2004). Preemergence Weed Control in Celery. California Celery Research Advisory Board Annual Report 2002-03. 47-58.
  • Tourte, L.; Smith, R., et al. (2004). Sample costs to produce organic broccoli. University of California Special Publication. http://www.agecon.ucdavis.edu/outreach/crops/cost.htm
  • Tourte, L.; Smith, R., et al. (2004). Sample costs to produce organic leaf lettuce. University of California Special Publication. http://www.agecon.ucdavis.edu/outreach/crops/cost.htm
  • Bettiga, L.; Smith, R., et al. (2004). Vineyard floor management practices. Update for Winegrape Growers. Summer 2004.
  • Smith, R. (2003). 2002 Grower’s use of Dual Magnum in 2002: follow-up survey. Pepper News. California Pepper Commission. 6/03, 5-6.
  • Smith, R. (2003). 2002 Weed control studies in peppers. Pepper News. California Pepper Commission. 6/03, 3-4.
  • Smith, R.; Hartz, T. (2003). Evaluation of slow release fertilizers for cool season vegetable production in the Salinas Valley. CDFA (California Department of Food and Agriculture), Fertilizer Research and Education Program Annual Conference, Tulare, CA.
  • Smith, R.; Koike, S., et al. (2003). Mustard cover crops to optimize crop rotations for lettuce production. California Lettuce Research Board Annual Report. 233-240.
  • Smith, R.; Fennimore, S., et al. (2003). Preemergence Weed Control in Celery. California Celery Research Board Annual Report 2002-03. 51-62.
  • Smith, R.; Hartz, T. (2003). Preliminary comparison between organic and conventional soils. Monterey County Crop Notes. September 2003.
  • Smith, R. (2003). Preliminary results on mustard cover crops for lettuce production. Monterey County Crop Notes. May 2003.
  • Smith, R.; Brennan, E., et al. (2003). Rust on Merced rye cover crops evaluated. Monterey County Crop Notes. September 2003.
  • Smith, R.; Brennan, E. (2003). Seed set by mustard cover crops. Monterey County Crop Notes. September 2003.
  • Smith, R. (2003). Slow release fertilizers for lettuce production. Monterey County Crop Notes. November 2003.
  • Smith, R. (2003). Survey of grower’s experience with Dual Magnum on peppers. Monterey County Crop Notes. March 2003.
  • Fennimore, S.; Smith, R. (2003). Weed management systems for lettuce. California Lettuce Research Board Annual Report. 211-217.
  • Smith, R. (2002). Broccoli weed control studies in the Salinas Valley, California. Western Society of Weed Science.
  • Smith, R.; Brennan, E. (2002). Cover crops and weeds. Monterey County Crop Notes. September 2002.
  • Smith, R. (2002). Deformity of Romaine lettuce heads. Monterey County Crop Notes. July 2002.
  • Smith, R. (2002). Evaluating the brush hoe cultivator in irrigated vegetable production. Organic Farming Research Foundation Information Bulletin. 11:8, 12-14.
  • Smith, R. (2002). Evaluation of controlled release fertilizers for winter lettuce production. California Lettuce Research Board Annual Report. 183-192.
  • Smith, R.; Hartz, T. (2002). Evaluation of slow release fertilizers for cool season vegetable production in the Salinas Valley. CDFA (California Department of Food and Agriculture), Fertilizer Research and Education Program Annual Conference, Tulare, CA.
  • Koike, S.; Smith, R. (2002). Mustard Cover Crop Diseases That May Affect Cash Crops. Monterey County Crop Notes. November 2002.
  • Smith, R. (2002). Mustard cover crops: a new cover crop option. Central Coast Family Farm Report. December 2002.
  • Smith, R. (2002). New and Old Herbicides Research in Vegetable Production. Monterey Bay Chapter of CAPCA (California Association of Pest Control Advisers) Newsletter. Winter 2002.
  • Smith, R. (2002). Nitrogen toxicity on head lettuce. Monterey County Crop Notes. May 2002.
  • Smith, R. (2002). Pepper weed control trials. Pepper News. California Pepper Commission. 4/02, 4.
  • Smith, R. (2002). Preemergence weed control in celery. California Celery Research Board Annual Report 2000-01. 45-52.
  • Smith, R.; Fennimore, S., et al. (2002). Preemergence Weed Control in Celery. California Celery Research Board Annual Report 2001-02. 99-103.
  • Smith, R. (2002). Slow Release Fertilizers for Lettuce Production: A Three Year Summary. Monterey County Crop Notes. November 2002.
  • Smith, R. (2002). Two herbicide registrations on vegetables. Monterey County Crop Notes. March 2002.
  • Smith, R. (2002). Vineyard Floor Management Alternatives. 2002 Central Coast Winegrape Seminar.
  • Fennimore, S.; Smith, R. (2002). Weed management systems for lettuce. California Lettuce Research Board Annual Report. 177-182.
  • Smith, R. (2001). Biology and control of shepherds purse in the Salinas Valley. Monterey County Crop Notes. January 2001.
  • Smith, R. (2001). Edamame variety and planting date evaluations. Monterey County Crop Notes. March 2001.
  • Smith, R. (2001). Establishing native perennial grasses. Monterey County Crop Notes. July 2001.
  • Smith, R. (2001). Evaluation of controlled release fertilizers for winter lettuce production. California Lettuce Research Board Annual Report. 243-250.
  • Smith, R.; Hartz, T. (2001). Evaluation of slow release fertilizers for cool season vegetable production in the Salinas Valley. CDFA (California Department of Food and Agriculture), Fertilizer Research and Education Program Annual Conference.
  • Smith, R. (2001). Evaluation of slow release fertilizers for winter vegetable production in the Salinas Valley. Monterey County Crop Notes. November 2001.
  • Smith, R. (2001). Evaluation of the significance of weeds in winter cover crops. Monterey County Crop Notes. November 2001.
  • Smith, R. (2001). Hollow root disorder of head lettuce. Monterey County Crop Notes. July 2001.
  • Koike, S.; Smith, R. (2001). Managing garlic rust disease. Monterey County Crop Notes. January 2001.
  • Smith, R. (2001). Minor Crop Registrations and the IR-4 Program. Monterey Bay Chapter of CAPCA (California Association of Pest Control Advisers) Newsletter. Winter 2001.
  • Smith, R. (2001). Onion weed control studies. Monterey County Crop Notes. March 2001.
  • Smith, R. (2001). Organic fertilizer trial on broccoli. Central Coast Family Farm Report. December 2001.
  • Koike, S.; Smith, R. (2001). Possible garic rust source: weeds? Monterey County Crop Notes. September 2001.
  • Tourte, L.; Smith, R. (2001). Production costs for head (wrapped iceberg) and leaf (Romaine) lettuce in Monterey and Santa Cruz Counties. California Lettuce Research Board Annual Report. 265-275.
  • Smith, R.; Chaney, D., et al. (2001). Sample costs to produce fresh cauliflower. University of California Special Publication. http://www.agecon.ucdavis.edu/outreach/crops/cost.htm
  • Smith, R.; Cantwell, M. (2001). Size, Shelf-life, and Composition of Broccoli Produced Under Different Nitrogen Fertilization Regimes. Mann Lab Research Summary. 4. August 27, 2001.
  • Cantwell, M.; Gaskell, M., et al. (2001). The quality of edamame varieties at harvest, after storage. Results from 1998 harvest and 2000 Davis Trials. Research summary for Specialty Crop Workgroup. 13. March 26, 2001.
  • Smith, R.; Fennimore, S. (2001). Weed control efficiency in lettuce 80-inch bed production. Monterey County Crop Notes. May 2001.
  • Fennimore, S.; Smith, R. (2001). Weed management systems for lettuce. California Lettuce Research Board Annual Report. 215-221.
  • Smith, R. (2000). Alternative preemergence options for onion growers. Monterey County Crop Notes. January 2000.
  • Smith, R. (2000). Creeping field cress: a new weed in California. Vegetable Magazine. 7. Spring.
  • Crowe, F.; Davis, R., et al. (2000). Dehydrated garlic powder used to reduce Sclerotium cepivorum in field soil. Pacific Division American Phytopathological Society meeting.
  • Crowe, F.; Davis, R., et al. (2000). Dehydrated garlic powder used to reduce Sclerotium cepivorum in field soil. 6th International Allium White Rot Conference, Mexico City.
  • Smith, R. (2000). Evaluating trap crops for controlling flea beetle in brassicas, and an organic pesticide trial. Organic Farming Research Foundation Information Bulletin. 8, 9-11. Summer 2000.
  • Smith, R. (2000). Identifacion y biologia de las malezas en el cultivo de la fresa en la costa central de California. UCCE (University of California Cooperative Extension) Monterey County.
  • Fennimore, S.; Smith, R. (2000). Weed management systems for lettuce. California Lettuce Research Board Annual Report. 203-213.
  • Smith, R.; Garcia, S. (2000). Yellow star thistle control. Central Livestock and Range News. January.
  • Koike, S.; Smith, R. (1999). Additional information on garlic rust disease. Monterey County Crop Notes. August 1999.
  • Smith, R. (1999). Assessing the impact of manure application on the presence of microbial contamination of lettuce at harvest. California Lettuce Research Board Annual Report. 246-251.
  • Smith, R. (1999). Control of pepper stip. Monterey County Crop Notes. January 1999.
  • Smith, R. (1999). Controlling and growing purslane. Monterey County Crop Notes. April 1999.
  • Smith, R. (1999). Cover crop evaluations. Monterey County Crop Notes. October 1999.
  • Smith, R. (1999). Creeping field cress: a new weed in California. Monterey County Crop Notes. December 1999.
  • Smith, R.; Mullen, R., et al. (1999). Epidemiology of pepper stip. HortScience. 34:3, 441.
  • Smith, R.; Fennimore, S. (1999). Food quality protection act potential impact on weed control materials. Monterey County Crop Notes. August 1999.
  • Smith, R.; Koike, S. (1999). Pink root of onion: symptoms, biology and field resistance trial. Monterey County Crop Notes. April 1999.
  • Gaskell, M.; Cantwell, M., et al. (1999). Sweet onion transplants: effect of transplant date and size on production, quality and pungency. Vegetable. 6-7. January/February.
  • Smith, R. (1999). The impact of manure application on the presence of microbial contamination of lettuce at harvest. Monterey County Crop Notes. October 1999.
  • Smith, R. (1999). Winter weed control in broccoli. Monterey County Crop Notes. October 1999.
  • Smith, R. (1999). World vegetable production. Monterey County Crop Notes. June 1999.
  • Smith, R. (1999). Yellow star thistle control. Monterey County Crop Notes. December 1999.
  • Smith, R.; Koike, S. (1998). Control of powdery mildew of summer squash. Fungicide and Nematicide Tests. 53, 241.
  • Smith, R. (1998). Cover crops for vegetable production. Monterey County Crop Notes. September 1998.
  • Smith, R. (1998). Effect of plastic mulches on the yield of zucchini summer squash. Central Coast Family Farm Report Newsletter. December 1998.
  • Smith, R.; Mullen, R., et al. (1998). Epidemiology of pepper stip. Pepper News. California Pepper Commission. 6/98, 5.
  • Koike, S.; Smith, R. (1998). Outbreak of garlic rust on the central coast. Coastal Grower. Spring 1998.
  • Koike, S.; Smith, R., et al. (1998). Severe outbreak of garlic rust in California. 1998 National Onion (and other Allium) Research Conference.
  • Smith, R.; Laemmlen, F., et al. (1998). Strategies to control powdery mildew. Pepper News. California Pepper Commission. 6/98, 4.
  • Smith, R.; Koike, S., et al. (1998). Strategies to control powdery mildew of peppers. National Pepper Conference.
  • Smith, R.; Laemmlen, F., et al. (1998). Strategies to control powdery mildew on peppers. Vegetable. 7, 10&18. Summer 1998.
  • Smith, R.; Laemmlen, F., et al. (1998). Strategies to control powdery mildew on peppers. Agribusiness Fieldman. 5, 6-7. June 1998.
  • Smith, R. (1998). Sweet onion trial for the Central Coast. Central Coast Family Farm Report Newsletter. December 1998.
  • Smith, R.; Schulbach, K. (1997). Development and promotion of nitrogen quick tests for determining nitrogen fertilizer needs of vegetables. California Plant and Soil Conference.
  • Smith, R.; Schulbach, K., et al. (1997). Development and promotion of nitrogen quick tests for determining nitrogen fertilizer needs of vegetables. Fertilizer Research and Education Program Conference.
  • Smith, R.; Mullen, R., et al. (1997). Epidemiology of pepper stip. Pepper News. Pepper Commission. 6/97, 2.
  • Smith, R. (1997). Evaluation of materials for control of bell pepper powdery mildew. Fungicide and Nematicide Tests. 52, 126.
  • Koike, S.; Schulbach, K., et al. (1997). Investigation of celery petiole lesion, Second Year: Association of Dibrom with CPL. California Celery Research Advisory Board 1995-96 Annual Report.
  • Smith, R. (1997). Organic control of weeds in onions and peppers. California Weed Science Society.
  • Klonsky, K.; Smith, R., et al. (1997). Sample costs to produce peppers in San Benito and Santa Clara Counties. University of California, Department of Agricultural Economics Publications.
  • Smith, R. (1997). Specialty produce provides market opportunities for growers. Coastal Grower. 3/97, 31.
  • Smith, R.; Laemmlen, F., et al. (1997). Strategies to control powdery mildew. Pepper News. Pepper Commission. 6/97, 2.
  • Smith, R. (1997). Trial Report Summary: Bell Pepper Variety Trial Results. San Benito and Santa Clara Counties 1997 Research Report.
  • Smith, R. (1997). Variety evaluation, cultural practices and pest management in San Benito County. San Benito County 1997 Research Report.
  • Schulbach, K.; Smith, R. (1996). Development and promotion of nitrogen quick tests for determining nitrogen fertilizer needs of vegetables. Fertilizer Research and Education Program Conference.
  • Schulbach, K.; Smith, R. (1996). Development and promotion of nitrogen quick tests for determining nitrogen fertilizer needs of vegetables. California Plant and Soil Conference.
  • Smith, R.; Mullen, R., et al. (1996). Epidemiology and control of pepper stip. National Pepper Conference.
  • Smith, R.; Mullen, R., et al. (1996). Epidemiology of pepper stip. Pepper News. Pepper Commission. 6/96, 2.
  • Smith, R.; Mullen, R., et al. (1996). Epidemiology of pepper stip. Western Region Meeting of the American Society for Horticultural Science.
  • Smith, R. (1996). Evaluation of Materials for Control of Bell Pepper Powdery Mildew. Fungicide and Nematicide Tests. 51, 120.
  • Koike, S.; Schulbach, K., et al. (1996). Preliminary investigation of a celery petiole problem. California Celery Research Advisory Board 1994-95 Annual Report.
  • Smith, R.; Laemmlen, F., et al. (1996). Strategies to control powdery mildew of peppers. Pepper News. Pepper Commission. 6/96, 2.
  • Smith, R. (1996). Trial Report Summary: Bell Pepper Variety Trail Results. San Benito and Santa Clara Counties 1996 Research Report.
  • Smith, R. (1996). Variety evaluations, cultural practices and pest management in San Benito County. San Benito County 1996 Research Report.
  • Smith, R. (1995). Bacterial spot is “hit-or-miss” situation for pepper growers. Ag Alert. 16. December 6, 1995.
  • Smith, R. (1995). Compost quality standards. Lake Plains Vegetable News. Cornell University. 9/95, 8-9.
  • Schulbach, K.; Smith, R. (1995). Development and promotion of nitrogen quick tests for determining nitrogen fertilizer needs of vegetables. Fertilizer Research and Education Program Conference.
  • Smith, R. (1995). Evaluation of fungicides for powdery mildew control on zucchini. Fungicide and Nematicide Tests. 50, 161.
  • Smith, R. (1995). Strategies to control powdery Mildew on Peppers. Pepper News. Pepper Commission. 6/95, 3-4.
  • Smith, R. (1995). Trial Report Summary: Bell Pepper Variety Trial Results. San Benito and Santa Clara Counties 1995 Research Report.
  • Klonsky, K.; Tourte, L., et al. (1994). Cultural practices and sample costs for organic vegetable production on the Central Coast of California. Giannini Foundation Information Series. No. 94-2.
  • Smith, R.; Koike, S. (1994). Evaluation of fungicides for control of powdery mildew on zucchini. Fungicide and Nematicide Tests. 49, 150.
  • Smith, R. (1994). Evaluation of materials for control of powdery mildew of bell pepper. Fungicide and Nematicide Tests. 49, 125.
  • Smith, R. (1994). Trial Report Summary: Bell Pepper Variety Trial Results. San Benito and Santa Clara Counties 1994 Research Report.
  • Koike, S.; Smith, R., et al. (1993). Evaluation of fungicides for control of downy mildew of spinach. Fungicide and Nematicide Tests. 48, 179.
  • Smith, R. (1993). Evaluation of Materials for control of powdery mildew of bell pepper. Fungicide and Nematicide Tests. 48, 135.
  • Klonsky, K.; Tourte, L., et al. (1993). Overview of a diversified organic vegetable operation. Small Farm News. 30:17. March/April.
  • Smith, R. (1993). Trial Report Summary: Bell, European and Colored Pepper Variety Trial Results. San Benito County 1993 Research Report.
  • Smith, R. (1992). Bell Pepper Variety Evaluations, San Benito and Santa Clara Counties. 1992 Research Progress Report. San Benito County.
  • Smith, R. (1992). Vegetable Disease and Fertility Studies. 1992 Research Progress Report. San Benito County.
  • Smith, R. (1992). Widespread Powdery Mildew Turns Up in Pepper Fields. Ag Alert. October 7, 1992.
  • Smith, R. (1992). Zucchini and Pumpkin Variety Evaluations, San Benito and Monterey Counties. 1992 Research Progress Report. San Benito County.
  • Smith, R. (1991). Cover Crops for the Central Coast Region. 1990-91 Research Progress Report. San Benito County.
  • Cantwell, M.; Smith, R., et al. (1991). Weight Loss Characteristics of Five Zucchini Squash Cultivars. Mann Lab Progress Report. Department of Vegetable Crops, UC Davis.
  • Smith, R.; Kolodge, C. (1990). Bell Pepper Variety Trial. San Benito and Santa Clara Counties Research Report.
  • Smith, R. (1990). Covercrops for the Central Coast Region. 1989-1990 Research Progress Report. San Benito County.
  • Smith, R. (1990). Zucchini Trial Report Central Coast RegioN. 1990 Research Progress Report. San Benito County.
  • Le Strange, M.; Cantwell, M., et al. (1989). Cole Crop Production in the San Joaquin Valley: 1988-1989 Research Progress Report. Joint Regional Report.
  • Smith, R. (1989). Control of other insects may cause leafminer problems. The California Tomato Grower. 32:6, 10-13.
  • Smith, R. (1989). Processing tomato variety trials, 1988, Stanislaus County. The California Tomato Grower. 32:1, 12-16.
  • Smith, R. (1989). Three practices combine to stall threat from black rot in crucifers. California-Arizona Farm Press.
  • Osterli, P.; Asai, W., et al. (1988). Agricultural water management in a dry. Stanislaus County special publication.
  • Smith, R.; Hill, R. (1988). Barnyard grass control with sethoxydim. 1988 Progress Report – Nightshade, Dodder and Bindweed Control in Tomatoes.J. Orr. 49.
  • Le Strange, M.; May, D., et al. (1988). Broccoli variety evaluation for the San Joaquin Valley. 1987-88 Research Progress Report.
  • Mullen, R.; Smith, R. (1988). Fresh Market Tomato variety trial report. 1988 Research Report for San Joaquin and Stanislaus Counties.
  • Smith, R. (1988). Preplant-incorporated weed control trial with acifluorfen in processing tomatoes. 1988 Progress Report – Nightshade, Dodder and Bindweed Control in Tomatoes.J. Orr. 48.
  • Smith, R. (1988). Processing tomato variety trials with combines statewide results. Research Progress Report. Stanislaus County.
  • Smith, R. (1988). Processing tomato variety trials, 1987, Stanislaus County. The California Tomato Grower. 31:1, 10-12.
  • Smith, R. (1988). Winter vegetables weed control and nutritional studies. 1987-88 Stanislaus County Research Report.
  • Mullen, R.; Smith, R., et al. (1987). A post-emergency trial for weed control inprocessing tomatoes. 1987 Progress Report Nightshade, Dodder and Birdweed Control in Tomatoes.J. Orr. 15-16.
  • Mullen, R.; Orr, J., et al. (1987). A pre-plant pre-emergence nightshade control trial in processing tomatoes evaluating different rates and methods of application of metam-sodium. 1987 Progress Report Nightshade, Dodder and Birdweed Control in Tomatoes.J. Orr. 12.
  • Mullen, R.; Orr, J., et al. (1987). A pre-plant, pre-emergence nightshade control trial in processing tomatoes, comparing two methods of application of metam-sodium. 1987 Progress Report Nightshade, Dodder and Birdweed Control in Tomatoes.J. Orr. 11.
  • Mullen, R.; Smith, R., et al. (1987). A pre-plant, pre-emergence weed control trial in processing tomatoes comparing different rates and methods of application of metam-sodium. 1987 Progress Report Nightshade, Dodder and Birdweed Control in Tomatoes.J. Orr. 14.
  • Fischer, W.; Lange, A., et al. (1987). Beardless Wildrye -- Elymus triticodes. University of California Cooperative Extension.
  • Smith, R. (1987). Fresh market tomato variety trial. 1987 Research Progress Report Stanislaus County Extension. Publication Number 4030.
  • Smith, R. (1987). Growing tomatoes without telone. The California Tomato Grower. 30:10, 17.
  • Smith, R. (1987). Processing tomato variety trials with combined statewide results. 1987 Research Progress Report Stanislaus County.
  • Smith, R. (1987). Tomato powdery mildew. The California Tomato Grower. 30:6, 20.

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