Division of Agriculture and Natural Resources
University of California
Division of Agriculture and Natural Resources

Dr Lucia G. Varela Ph.D.

North Coast IPM Advisor
UC Cooperative Extension
133 Aviation Boulevard
Suite 109
Santa Rosa, CA 95403-2894
(707) 565-2621
lgvarela@ucanr.edu Create VCard

Also in:
Statewide IPM Program
Napa County
Lake County
Mendocino County

Education

Ph.D Entomology, UC Berkeley. 1990
M.S. Entomology, UC Berkeley. 1986
B.S. Biochemistry, UC Los Angeles. 1982

Specialty

Apples, pears, wine grapes, pest managment

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

Bibliography

Peer Reviewed

  • Bentley, W.J., L. Bettiga, et al. (in press). Grape Pest Management Manual. Oakland: Univ. Calif. Div. Agric. Nat. Res.
  • Varela, L.G., M.L Cooper, et al. (2013). "Can European grapevine moth, Lobesia botrana (Lepidoptera: Tortricidae) be eradicated from California?" IOBC-WPRS Bulletin 85: 95-102.
  • Varela, L.G., A. Lucchi, et al. (2013). "Impacts of standard wine-making process on the survival of Lobesia botrana larvae (Lepidoptera: Tortricidae) in infested grape clusters." J. Econ. Entomol 106(6): 2349-2353.
  • VanSteenwyk, R.A., L.G. Varela, et al. (2013). "Monitoring and control of European grapevine moth, Lobesia botrana (Lepidoptera: Tortricidae) in California vineyards." IOBC-WPRS Bulletin 85: 177-186.
  • Lucchi, A., C. Ioriatti, et al. (2012). Grape berry moths in Western European vineyards and their recent movement into the New World. Arthropod Management in Vineyards: Pests, Approaches, and Future Directions.C. Vincent, N. Bostanian and R. Isaacs. Springer.: 339-360.
  • Bentley, W.J. and L.G. Varela (2012). Tarjetas de indentificación y monitoreo de plagas de la vid. Calif. Div. Agric. Nat. Res. Publ. 3538
  • Varela, L.G. and W.J. Bentley (2012). Tarjetas de indentificación y monitoreo de plagas de la vid. Calif. Div. Agric. Nat. Res. Publ. 3538
  • Elkins, R.B., L.G. Varela, et al. (2011). Evolution of Secondary Pests in California Pear Orchards under Mating Disruption for Codling Moth Control. Proc. 11th International Pear Symposium, Acta Hort.
  • Bentley, W.J. and L.G. Varela (2011). Vineyard pest identification and monitoring cards. Calif. Div. Agric. Nat. Res. Publ. 3532
  • Walker, J.T.S., L.G. Varela, et al. (2010). "New Zealand Lessons May Aid Efforts to Control Light Brown Apple Moth in California." California Agriculture 64(1): 6-12.
  • Elkins, R.B. and L.G. Varela (2008). "Conversion from use of organophosphate insecticides to codling moth mating disruption in California Pear Orchards." Acta Hort 800, ISHS 955-960
  • Johnson, M.W., L.G. Varela, et al. (2008). "Light brown apple moth's arrival in California worries commodity groups." California Agriculture 62(2): 57-61.
  • Daane, K.M., M.L. Cooper, et al. (2008). "Liquid baits control Argentine ants sustainably in coastal vineyards." California Agriculture 62(4): 177-193.
  • Varela, L.G. and R.J. Smith (2008). "Pomace management reduces spread of vine mealybug. In: Vineyard managers and researchers seek sustainable solutions for mealybugs, a changing pest complex." California Agriculture 62(4): 172-173.
  • Varela, L.G., R.A. Van Steenwyk, et al. (2007). Insects and mite pests. California Pear Production and Handling Manual.R. elkins and E. Mitcham. Univ. Calif. Div. Agric. Nat. Res. Publ. 3483: 135-144.
  • Varela, L.G., W.J. Bentley, et al. (2006). Insects and mites. UC IPM Pest Management Guidelines: Grape. Univ. Calif. Div. Agric. Nat. Res. Publ. 3448
  • Varela, L.G., W.J. Bentley, et al. (2005). Grapes, Insects, Ecology and Control. Encyclopedia of Pest Management.D. Pimentel. New York, Taylor & Francis Group, LLC.
  • Daane, K.M., D.L. Dahlsten, et al. (2005). "Imported Parasitic Wasp Helps Control Red Gum Lerp Psyllid." California Agriculture 59(4): 229-234.
  • Zalom, F., W.J. Bentley, et al. (2003). Insects and mites. UC IPM Pest Management Guidelines: Grape. Univ. Calif. Div. Agric. Nat. Res. Publ. 3448
  • Van Steenwyk, B., R.B. Elkins, et al. (2002). Insects and mites. UC IPM Pest Management Guidelines: Pear. Univ. Calif. Div. Agric. Nat. Res. Publ. 3455
  • Varela, L.G., J.L. Caprile, et al. (2002). Insects and mites. UC IPM Pest Management Guidelines: Apple. Univ. Calif. Div. Agric. Nat. Res. Publ. 3432
  • Wilen, C.A. and L.G. Varela (2001). Glassy-Winged Sharpshooter Identification and Monitoring/Identificación y Monitoreo de la Chicharrita de Alas Cristalinas. Calif. Div. Agric. Nat. Res. Publ. V01-A
  • Varela, L.G. and C.A. Wilen (2001). Glassy-Winged Sharpshooter Identification and Monitoring/Identificación y Monitoreo de la Chicharrita de Alas Cristalinas. Calif. Div. Agric. Nat. Res. Publ. V01-A
  • Wilen, C.A., P.A. Phillips, et al. (2001). "Glassy-winged Sharpshooter; Integrated Pest Management for Home Gardeners and Landscape Professionals." UC IPM Pest Notes Publ. 7492: 4.
  • Smith, R.H., L.G. Varela, et al. (2001). Pierce’s Disease. Univ. Calif. Div. Agric. Nat. Res. Publ. 21600: 20.
  • Varela, L.G., R.H. Smith, et al. (2001). Pierce's Disease. Univ. Calif. Div. Agric. Nat. Res. Publ. 21600: 20.
  • Varela, L.G. (2000). Disease and Pest Management. Organic Apple Production Manual.e. al and . Swezey. Univ. Calif. Div. Agric. Nat. Res. Publ. 3404: 19-43.
  • Elkins, R.B., J.L. Caprile, et al. (1999). Integrated Pest Management for Apples and Pears. Oakland: Univ. Calif. Div. Agric. Nat. Res. Publ. 3340: 231.
  • Varela, L.G. and J. Andreasen (1999). Pesticide Disposal in Developing Countries – A training Module. U.S. Environmental Protection Agency International Training Module.
  • Andreasen, J. and L.G. Varela (1999). Pesticide Disposal in Developing Countries â?? A training Module. U.S. Environmental Protection Agency International Training Module.
  • Shearer, P.W., L.G. Varela, et al. (1997). "Monitoring of Insecticide Resistance in Phyllonorycter mespilella." Journal of Economic Entomology 90(2): 252-260.
  • Cowles, R.S., L.G. Varela, et al. (1996). "Spring Insecticide Treatments Control Adelgids on Douglas Fir." California Agriculture 80(5): 34-37.
  • Desmond, J., P. Vossen, et al. (1994). "Disease, Insect Pressures Make Organic Production Risky in Sonoma County." California Agriculture 48(6): 29-36.
  • Varela, L.G., P.W. Shearer, et al. (1994). "Topical Pheromone Trap Assay for Monitoring Insecticide Resistance of Phyllonorycter elmaella." Journal of Economic Entomology 87(6): 1441-1449.
  • Welter, S.C., L.G. Varela, et al. (1993). "Monitoring and Characterization of Insecticide Resistance in Codling Moth (Lepidoptera: Tortricidae) in Four Western States." Journal of Economic Entomology 86(1): 1-10.
  • Welter, S.C. and L.G. Varela (1992). "nr. elmaella." Biological Control 2(2): 124-130.
  • Varela, L.G. and S.C. Welter (1992). "Parasitoids of the Leafminer, Phyllonorycter." Biological Control 2(2): 124-130.

Non-Peer Reviewed

  • Elkins, R., L.G. Varela, et al. (2012, 2012). "Brown marmorated stink bug." Retrieved June 2012,
  • Elkins, R.B., L.G. Varela, et al. (2012). Brown marmorated stink bug. UC IPM Pest Alert.
  • Cooper, M.L. and L.G. Varela (2012). "Burn Local." Napa County Farm Bureau Grower Advocate Winter 2012
  • Cooper, M.L. and L.G. Varela (2012). European Grapevine Moth, Lobesia botrana, (Lepidoptera: Tortricidae) Eradication Program in California, Western Front. Newsletter of the Western Integrated Pest Management Center. October 2012: 4-5.
  • Cooper, M.L., L.G. Varela, et al. (2012). Initial response to European grapevine moth, Lobesia botrana, in North America. 7th International IPM Symposium.: 91.
  • Cooper, M.L., L.G. Varela, et al. (2012). Update on the European Grapevine Moth, Lobesia botrana (Lepidoptera: Tortricidae) Control Program in California. 86th Orchard Pest Management Conference.: 60.
  • Smith, R.J., L.G. Varela, et al. (2011b). "An investigation of the fate of." Am. J. Enol. Vitic 62(3): 409a.
  • Varela, L.G. (2011b). Controlling European Grapevine Moth: Lessons learned in the first year. UCCE Sonoma County Video Publication.: 32.13 minutes.
  • Cooper, M.L. and L.G. Varela (2011b). "European grapevine moth: continued monitoring is critical." Napa County Farm Bureau Grower Advocate Fall 2011
  • Varela, L.G., R.J. Smith, et al. (2011b). "Lobesia." Am. J. Enol. Vitic 62(3): 409a.
  • Cooper, M.L., L.G. Varela, et al. (2011b). Monitoring and control of European grapevine moth, Lobesia botrana. Report to USDA APHIS.: 11.
  • Varela, L.G. and M.L. Cooper (2011b). "The status of the European grapevine moth (EGVM) eradication effort in California; no reported crop losses in 2010." Western Plant Diagnostic Network 3(4): 3-5.
  • Cooper, M.L. and L.G. Varela (2011a). Comparison of pheromone lures, bait traps and trap design to monitor European grapevine moth, Lobesia botrana, adults in vineyards. Report to USDA APHIS.: 14.
  • Varela, L.G., R.J. Smith, et al. (2011a). Looking for Lobesia botrana in infested clusters processed for wine making. Sonoma County UCCE Publication.: 2.
  • Varela, L.G. and M.L. Cooper (2011a). Registered insecticides for European grapevine moth (EGVM), Lobesia botrana on grape. UCCE County publication.: 4.
  • Varela, L.G. (2011a). Table of degree-day accumulations for European grapevine moth in selected locations in California. Sonoma County UCCE Publication.: 1.
  • Smith, R.J., L.J. Bettiga, et al. (2011). Be Alert! European Grapevine Moth; Atención! La Palomilla Europea del Racimo. UC Statewide IPM Publication.
  • Bettiga, L.J., R.J. Smith, et al. (2011). Be Alert! European Grapevine Moth; Atención! La Palomilla Europea del Racimo. UC Statewide IPM Publication.
  • Cooper, M.L., L.G. Varela, et al. (2011). Can European Grapevine Moth, Lobesia botrana (Lepidoptera: Tortricidae) be eradicated from California? Lacanau, France, Integrated Protection and Production in Viticulture, IOBC/WPRS Working Group.: 23.
  • Cooper, M.L., L.G. Varela, et al. (2011). Degree-day Accumulations Used to Time Insecticide Treatments to Control 1st Generation European Grapevine Moth. Sonoma County UCCE Publication.: 4.
  • Varela, L.G., R.J. Smith, et al. (2011). European Grapevine Moth, Lobesia botrana. UC Statewide IPM Publication.: 2.
  • Varela, L.G., M.L. Cooper, et al. (2011). European Grapevine Moth, Lobesia botrana, Napa County Experience: Lessons Learned in 2010. Practical Winery and Vineyard Magazine. Spring 2011: 1-2.
  • Bettiga, L.J., L.G. Varela, et al. (2011). Guide to the Moths and Worms in Grapevine Clusters in California. Pest Guide. UC Statewide IPM Publication.: 2.
  • Van Steenwyk, R.A. and L.G. Varela (2011). Lessons Learned in the First Year of Control of European Grapevine Moth, Lobesia botrana (Lepidoptera: Tortricidae) in California Vineyards. 85th Annual Orchard Pest and Disease Management Conference.: 47.
  • Cooper, M.L., L.G. Varela, et al. (2011). Monitoring and Control of European Grapevine Moth, Lobesia botrana. 95th Annual Meeting of the Pacific Branch ESA.: 125.
  • Varela, L.G., R.A. Van Steenwyk, et al. (2011). Monitoring and Control of European Grapevine Moth, Lobesia botrana (Lepidoptera: Tortriciade) in California Vineyards. Lacanau, France, Integrated Protection and Production in Viticulture, IOBC/WPRS Working Group.: 48.
  • Elkins, R.E. and L.G. Varela (2011). New Pest Threat in Orchards: Brown Marmorated Stink Bug. CAPCA Adviser Magazine. June 2011: 32-33.
  • Smith, R.J., L.G. Varela, et al. (2011). Timing Insecticide Treatments for European Grapevine Moth. CAPCA Adviser Magazine. April 2011: 18-22.
  • Varela, L.G. (2010g). Status of Light Brown Apple Moth, Epiphyas postvittana (Lepidoptera: Tortricidae) in California. In Proceedings of the 84th Orchard Pest & Disease Management Conference,
  • Varela, L.G. (2010f). First Report in the United States of European Grapevine Moth, Lobesia botrana in California. Proceedings of the 6th International Table Grape Symposium,
  • Varela, L.G. (2010e). First Report in the United States of European Grapevine Moth, Lobesia botrana (Lepidoptera: Tortricidae) in Napa Valley Vineyards. In Proceedings of the 84th Orchard Pest & Disease Management Conference,
  • Varela, L.G. (2010d). La polilla del racimo de la vid, Lobesia botrana. Sonoma County UCCE Publication.: 1.
  • Varela, L.G. and R.J. Smith (2010d). "Solarization of winery waste can prevent spread of vine mealybug." UC Delivers: Grapes/Wine
  • Varela, L.G. (2010c). La polilla del racimo de la vid, Lobesia botrana. Sonoma County UCCE Video Publication.: 6.29 minutes.
  • Varela, L.G. and R.J. Smith (2010c). Treating the third generation of Lobesia botrana. Sonoma County UCCE Publication.: 1.
  • Varela, L.G. and R.J. Smith (2010b). Tortricid Moths in California Vineyards. Sonoma County UCCE Publication.: 2.
  • Varela, L.G. and R.J. Smith (2010b). Treating the second generation of Lobesia botrana. Sonoma County UCCE Publication.: 2.
  • Varela, L.G. and R.J. Smith (2010a). European Grapevine Moth, Lobesia botrana. Sonoma County UCCE Publication.: 2.
  • Varela, L.G. and R.J. Smith (2010a). Treating the first generation of Lobesia botrana. Sonoma County UCCE Publication.: 4.
  • Smith, R.J., L.G. Varela, et al. (2010). "European Grapevine Moth, Lobesia botrana." Practical Winery & Vineyard March/April 2010: 1-5.
  • Varela, L.G., M.L. Cooper, et al. (2010). European Grapevine Moth: a New Pest of Grapes in California. CAPCA Adviser Magazine. August 2010: 20-28.
  • Bagnoli, B., V. Mastro, et al. (2010). First report of the International Technical Working Group for the European grapevine moth (EGVM) in California.: 10.
  • Cooper, M.L., L.G. Varela, et al. (2010). Identification of Tortricid Moths in California Vineyards. CAPCA Adviser Magazine. 13: 24-29.
  • Smith, R.J. and L.G. Varela (2010). Insecticide Control of Vine Mealybug in California Vineyards. 94th Annual Meeting of the Pacific Branch ESA.: 114.
  • Walker, J.T.S., L.G. Varela, et al. (2010). "New Zealand Can Help California Control Leafroller." Fruit Grower News March 2010
  • Carde, R.T., V. Mastro, et al. (2010). Second report of the International Technical Working Group for the European grapevine moth in California.: 6.
  • Carde, R.T., V. Mastro, et al. (2010). Third report of the International Technical Working Group for the European grapevine moth in California.: 7.
  • Carde, R.T., V. Mastro, et al. (2010). Third report of the International Technical Working Group for the European grapevine moth in California.: 7.
  • Grafton-Cardwell, E., L.G. Varela, et al. (2009). A survey of Predacious Mites (Acari: Phytoseiidae) in North Coast California Vineyards. IOBC 3rd International Symposium on Biological Control of Arthropods.
  • Zalom, F., L.G. Varela, et al. (2009) European Grapevine Moth, Lobesia botrana: A New Pest in California. UC IPM Online
  • Varela, L.G. and R.J. Smith (2009). Vine Mealybug Control Trial 2009. Sonoma County UCCE Publication.: 10.
  • Varela, L.G. (2008). A Survey of Predacious Mites (Acari: Phytoseiidae) in North Coast California Vineyards. the 91st Pacific Branch Entomological Society of America.
  • Varela, L.G. and R. Elkins (2008). "Codling Moth Mating Disruption in North Coast Pear Orchards." CAPCA Adviser 11(8): 72-75.
  • Elkins, R.E. and L.G. Varela (2008). Efficacy Studies of Movento on Grape Mealybug and Grape Phylloxera. Proceedings of the 82nd Orchard Pest and Disease Management Conference,
  • Smith, R.J. and L.G. Varela (2008). Grape and Vine Insecticide Control Trials. Sonoma County UCCE Publication.: 6.
  • Varela, L.G. (2008). Leafrollers in Vineyards. Sonoma County UCCE Publication.: 2.
  • Varela, L.G. (2008). Monitoring and Controlling Katydids in Pear Orchards. California Pear Research Report.: 51-61.
  • Varela, L.G. (2008). Western Grapeleaf Skeletonizer: Look for this moth and the leaf damage it causes. Sonoma County UCCE Publication.: 1.
  • Elkins, R.E. and L.G. Varela (2007). Conversion from Organophosphate Insecticides to Mating Disruption in California Pear Orchards. Proceedings of the 10th International Pear Symposium, Portugal,
  • Varela, L.G. (2007). Grape Leaf Skeletonizer Fact Sheet. Sonoma County UCCE Publication.: 1.
  • Smith, R.J. and L.G. Varela (2007). Grape Mealybug Insecticide Trials. Sonoma County UCCE Publication.: 4.
  • Varela, L.G. (2007). Katydid Damage, Biology and Control in California Pear Orchards. Proceeding of the Orchard Pest and Disease Management Conference 81st Annual Meeting, Portland, OR,
  • Pickel, C., M.W. Johnson, et al. (2007). Light Brown Apple Moth in California: Quarantine, Management, and Potential Impacts. UC IPM Fact Sheet: 21.
  • Varela, L.G. (2007). Male Vine Mealybug Identification Sheet. Sonoma County UCCE Publication.: 3.
  • Varela, L.G. (2007). Monitoring and Controlling Katydids in Pear Orchards. California Pear Research Report.: 1-9.
  • Smith, R.H. and L.G. Varela (2006). Fate of Vine Mealybug Planococcus ficus. 5th National IPM Symposium. P086
  • Smith, R.J., L.G. Varela, et al. (2006). Grape, Obscure or Vine: Which mealybug is it, why should you care? Practical Winery and Vineyard Magazine. January/February 2006: 37-46, 125.
  • Smith, R.J., L.G. Varela, et al. (2006). Grape, Obscure or Vine: Which mealybug is it, why should you care? Practical Winery and Vineyard Magazine. January/February 2006: 37-46, 125.
  • Varela, L.G. (2006). Monitoring and Control of Katydids and Diabrotica. California Pear Report.: 1-12.
  • Varela, L.G. and R.J. Smith (2006). Monitoring Vine Mealybug with Pheromone Traps in California North Coast Vineyards. UCCE Sonoma County Publication.: 1.
  • Varela, L.G. (2006). Piojos Harinosos en Viñedos de California. UCCE Sonoma County Publication.: 2.
  • Smith, R.J. and L.G. Varela (2006). Seasonal Development of Grape, Obscure and Vine Mealybugs of the North Coast. UCCE Sonoma County Publication.: 2.
  • Varela, L.G. (2005). Grape and Vine Mealybug Life Cycle in the North Coast. UCCE Sonoma County Publication.: 1.
  • Varela, L.G. (2005). La Enfermedad de Pierce en California. proceeding of II Seminario Internacional de Viticultura,
  • Varela, L.G. (2005). Male Vine Mealybug and Other Small Insects Caught on Pheromone Traps Identification Sheets. UCCE Sonoma County Publication.: 2.
  • Varela, L.G. and R.J. Smith (2005). "Managing Vine Mealybug in Winery Waste." Wine Business Monthly 12(12): 53-54.
  • Elkins, R. and L.G. Varela (2005). Monitoring Secondary Pest Outbreak by Unknown Chewing Feeders. California Pear Report.: 8-14.
  • Smith, R.J. and L.G. Varela (2005). Monitoring Vine Mealybug with Pheromone Traps in North Coast Vineyards. UCCE Sonoma County Publication.: 1.
  • Varela, L.G., P. Vossen, et al. (2005). Olive Fruit Fly. UCCE Sonoma County Publication.: 5.
  • Varela, L.G. (2005). Oriental Fruit Moth Mating Disruption in Pear Orchards. California Pear Report.: 1-6.
  • Varela, L.G. (2005). Piojos Harinosos. UCCE Sonoma County Publication.: 2.
  • Smith, R.J. and L.G. Varela (2005). Seasonal Development of Grape, Obscure and Vine Mealybugs of the North Coast. UCCE Sonoma County Publication.: 2.
  • Varela, L.G. and R.J. Smith (2005). Using Vine Mealybug traps in the North Coast. CAPCA Adviser Magazine. January/February 2005: 13-14, 36.
  • Ingels, C., R. Elkins, et al. (2004). Control of Codling Moth Using Organically Acceptable Granulosis Virus and Spinosad Products. Western Orchard Pest & Disease Management 78th Ann. Conference.: 33.
  • Elkins, R. and L.G. Varela (2004). Monitoring Techniques and Survey of Oriental Fruit Moth in Pear Orchards. California Pear Research Reports.: 1-13.
  • Varela, L.G., R.A. Van Steenwyk, et al. (2003). Control of Codling Moth, Secondary Pests and True Bugs by Redueced Risk Insecticides. California Pear Research Reports.: 39-62.
  • Elkins, R. and L.G. Varela (2003). Developing Monitoring Techniques for the Control of Pear Slug. California Pear Research Reports.: 73-78.
  • Varela, L.G. (2003). "European Fruit Lecanium (Parthenolecanium corni." UC Plant Protection Quarterly 13(1): 5-7.
  • Ingels, C.A., L.G. Varela, et al. (2003). Evaluation of Assail for Control of Codling Moth. California Pear Research Reports.: 63-72.
  • Pickel, C., L.G. Varela, et al. (2003). Monitoring Techniques and Survey of Oriental Fruit Moth in Pear Orchards. California Pear Research Reports.: 1-18.
  • Varela, L.G. (2003). Pest Identification Sheet Series: Mealybugs, Sharpshooters, Spider Mites, Thrips, Western Grape Leafhopper. UCCE Sonoma County Publication.: 18.
  • Ingels, C.A., R. Elkins, et al. (2003). Testing of New Codling Moth Granulosis Virus Products and Spinosad to Supplement Mating Disruption in Bartlett Pear Orchards. California Pear Research Reports.: 21-36.
  • Varela, L.G., R.A. Van Steenwyk, et al. (2002). Control of Codling Moth, Secondary Pests and True Bugs by Reduced Risk Insecticides. California Pear Research Reports.: 21-42.
  • Varela, L.G. (2002). Control of Secondary Pests in Codling Moth Mating Disrupted Orchards. California Pear Research Reports.: 45-52.
  • Van Steenwyk, B., L.G. Varela, et al. (2002). Evaluation of the Sprayable Codling Moth Pheromone formulation. California Pear Research Reports.: 117-126.
  • Varela, L.G. (2002). Olive Fruit Fly. UCCE Sonoma County Publication.: 3.
  • Varela, L.G. (2002). "Pest Management Accept No Substitutes." Western Fruit Grower April 2002: 20N.
  • Varela, L.G. (2002). "Trap Suppression Using Four Hand-Applied Codling Moth (Lepidoptera: Tortricidae) Pheromone Dispensers." UC Plant Protection Quarterly 12(1): 1-5.
  • Varela, L.G. (2001). Biologically Intensive Pest Management Program for Pears in Mendocino County. California Pear Research Reports.: 114-118.
  • Van Steenwyk, B., R. Elkins, et al. (2001). Control of Codling Moth with Virosoft Bio-Insecticide Containing Cydia pomonella. California Pear Research Reports.: 4-14.
  • Varela, L.G. (2001). Evaluation of BioControl and Consep Codling Moth Pheromone Dispensers. California Pear Research Reports.: 119-131.
  • Varela, L.G. (2001). "How to Distinguish Glassy-winged Sharpshooter from its â??look-a-likeâ??" Cal. Ag 44(4): 12.
  • Varela, L.G. (2001). "How to Distinguish Glassy-winged Sharpshooter from its “look-a-like”." Cal. Ag 44(4): 12.
  • Balog, G. and L.G. Varela (2001). Trap Suppression using Different Codling Moth Pheromone Dispensers. Western Orchard Pest & Disease Management 75th Ann. Conference.: 143.
  • Varela, L.G. (2001). Trap suppression Using Three Hand-applied Codling Moth (Lepidoptera: Tortricidae) Pheromone Dispensers. Pacif. Branch Entomol. Soc. Am. 86th Ann. Meeting.: 5.
  • Varela, L.G. (2000). Areawide Management of Codling Moth in Mendocino Orchards. California Pear Research Reports.: 169-175.
  • Ingels, C. and L.G. Varela (2000). Control of Secondary Pests in Codling Moth Mating Disrupted Orchards. California Pear Research Reports.: 81-90.
  • Varela, L.G. and D. Garcia-Rossi (2000). Early Seasonal Population Parameters Predict Grape Leafhopper Population Size. the Pacific Branch Entomol. Soc. of Am. 84th Annual Meeting.
  • Varela, L.G. (2000). Evaluation of BioControl and Consep Codling Moth Pheromone Dispensers. California Pear Research Reports.: 91-102.
  • Welter, S.C., C. Ingels, et al. (2000). Evaluation of New Codling Moth Lures and Traps in Mating Disrupted Orchards. California Pear Research Reports.: 103-110.
  • Varela, L.G. (2000). Pear Integrated Pest Management in California. Pacif. Branch Entomol. Soc. Am. 84th Annual Meeting.
  • Varela, L.G. and M. Moratorio (1999). Areawide Management of Codling Moth in Mendocino Orchards – Ukiah Valley. California Pear Research Reports.: 145-154.
  • Moratorio, M. and L.G. Varela (1999). Areawide Management of Codling Moth in Mendocino Orchards â?? Ukiah Valley. California Pear Research Reports.: 145-154.
  • Varela, L.G. (1999). Integrated Pest Management Strategies. The Vineyard Manual - A Grape Grower Manual for Vineyard Development and Maintenance. Southern Sonoma County Resource Conservation District.: 395-419.
  • Welter, S.C. and L.G. Varela (1998). Areawide Management of Codling Moth in Mendocino Orchards: Integrating and Maintaining Benefits of Selective control of Secondary Pests. California Pear Research Reports.: 115-125.
  • Varela, L.G. and R.A. van Steenwyk (1998). IPM under the Food Quality Protection Act. California Pear Research Reports.: 61-75.
  • Varela, L.G. (1998). Pierce's Disease. CAPCA Adviser Magazine. March/April 1998: 12, 24-25.
  • Welter, S.C. and L.G. Varela (1997). Areawide Management of Codling Moth Using Pheromone Mating Disruption: Mendocino Pilot Project. California Pear Research Reports.: 141-152.
  • Varela, L.G. (1997). Mendocino County Area-wide Mating Disruption Implementation Project. Proceedings of the 71st Annual Western Orchard Pest and Disease Management Conference,
  • Varela, L.G. (1997). Pierce's Disease in the North Coast. UCCE Sonoma County Publication.: 12.
  • Smith, R.J. and L.G. Varela (1997). Pierce's Disease in the North Coast Quick Field Guide. UCCE Sonoma County Publication.: 1.
  • Welter, S.C. and L.G. Varela (1997). Potential for Urea Foliar Sprays and Liming for Reducing Pear Scab Inoculum. California Pear Research Reports.: 209-219.
  • Varela, L.G. and S.C. Welter (1997). Resistance Monitoring in Mating Disrupted Orchards in the Mendocino Areawide Project and Surrounding Orchards. California Pear Research Reports.: 77-80.
  • Cowles, R.S., L.G. Varela, et al. (1997). "Spring Insecticides for Douglas Fir." Agribusiness Fieldman: 6-9.
  • Cowles, R.S., L.G. Varela, et al. (1996). Adelgids on Douglas-Fir Controlled with Spring Insecticide Treatments. Pacific Branch Entomological Society of America Eightieth Annual Meeting.
  • Varela, L.G. and S.C. Welter (1996). Development of Resistance Management Strategies within Mating Disruption Orchards. California Bartlett Pear Research Report.: 119-128.
  • Krebill-Prather, R. and L.G. Varela (1996). Evaluating the Effectiveness of Pest Management Training to Vineyard Farm Workers. Third National IPM Symposium/Workshop.
  • Varela, L.G. (1996). Mendocino County Areawide Mating Disruption Implementation Project. California Bartlett Pear Research Report.: 97-103.
  • Varela, L.G. and P. Vossen (1996). Organic Aphid Control. UCCE Sonoma County Publication.: 2.
  • Varela, L.G. (1996). Pheromone Mating Disruption Provides Effective Codling Moth Control. Proceedings of the 92nd Annual Washington State Horticultural Association Meeting,
  • Varela, L.G. (1995). Leafrollers and What We've Learned. Pear Pest Management Research Fund Newsletter.: 2.
  • Varela, L.G. (1995). Mite Identification in Grapes Quick Field Guide. UCCE Sonoma County Publication.: 1.
  • Varela, L.G. (1995). "Oblique-banded Leafroller in Pears." Lake County Horticultural Notes
  • Duncan, R. and L.G. Varela (1995). Use of Bacillus thuringiensis. California Bartlett Pear Research Report.: 5.
  • Varela, L.G. (1994). Control Integrado de Plagas, Conceptos y Estrategias. Spanish Session Proceedings of the Washington State Horticultural Association Annual Meeting,
  • Varela, L.G. (1994). Evaluating Oblique-Banded Leafroller Control Measures in an Orchard under Codling Moth Mating Disruption and Trichogramma Releases for Codling Moth Control. California Bartlett Pear Research Report.: 2.
  • Varela, L.G. (1994). Integrated Pest Management Concepts and Strategies. Proceedings of the 90th Annual Washington State Horticultural Association Meeting,
  • Varela, L.G. (1994). Organophosphate Resistance. Proceedings of the 90th Annual Washington State Horticultural Association Meeting,
  • Elkins, R., W. Reil, et al. (1993). Implementation of the Pheromone Mating Disruption Program in California Pear Orchards. California Bartlett Pear Research Report.: 34.
  • Varela, L.G. (1993). Leafrollers as Secondary Pests to Codling Moth Mating Disruption in Pears. California Bartlett Pear Research Report.: 5.
  • Varela, L.G. and M.L. Flint (1993). Los Enemigos Naturales que se Encuentran Más Comúnmente en los Viñedos. Davis, University of California Statewide IPM Project Publications.: 4.
  • Flint, M.L. and L.G. Varela (1993). Los Enemigos Naturales que se Encuentran Más Comúnmente en los Viñedos. Davis, University of California Statewide IPM Project Publications.: 4.
  • Varela, L.G. (1993). Plagas y Enemigos Naturales en los Viñedos de la Costa Norte. Davis, University of California Statewide IPM Project Publications.: 4.
  • Varela, L.G. (1993). Plagas y Enemigos Naturales en los Viñedos de la Costa Norte. Davis, University of California Statewide IPM Project Publications.: 4.
  • Vossen, P., S.L. Swezey, et al. (1993). "Planned Parenthood for Codling Moth. Does Mating Disruption Keep Populations Down." California Grower April 1993: 25-27.
  • Elkins, R., R. Bethell, et al. (1992). Implementation of the Pheromone Mating Disruption Program in California Pear Orchards. California Bartlett Pear Research Report.: 1-19.
  • Varela, L.G. and C. Pickel (1992). Leafrollers as Secondary Pests to Codling Moth Mating Disruption in Pears. California Bartlett Pear Research Report.: 10.
  • Rosetti, T., R. Elkins, et al. (1992). Resistance Management Testing Laboratory for the North Coast. California Bartlett Pear Research Report.: 5.

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