- Author: Pamela Kan-Rice
Ashraf El-Kereamy was appointed UC Cooperative Extension citrus horticultural specialist in the Department of Botany and Plant Sciences at UC Riverside on Feb. 1, 2019.
He had been working as a UCCE area viticulture advisor serving Kern, Tulare and Kings counties since 2014.
Prior to joining UCCE, El-Kereamy worked as a post-doc research associate at University of Guelph, studying plant drought and heat stress tolerance in plants from 2013 to 2014, and studying the genotypes variation in nitrogen use efficiency and plant heat stress tolerance from 2008 to 2012. From 2012 to 2013, he was assistant/associate professor in the Department of Horticulture, Ain Shams University, Egypt, where he taught undergraduate and postgraduate courses for horticultural science and served as the principal investigator for a U.S.-Egypt joint collaborative research project between University of Wyoming and Ain Shams University on improving grapevine tolerance to drought and heat stress. As a post-doctoral scientist at the University of Guelph, Vineland, El-Kereamy studied the pathogenesis-related proteins during plum fruit ripening. As a University of Manitoba post-doc, he studied the physiological role of abscisic acid in plants.
He earned his Ph.D. in agriculture with an emphasis in grape physiology and molecular biology from INP-ENSAT, Toulouse University, Toulouse, France, and a M.Sc. in pomology and B.Sc. in horticulture, both from Ain Shams University, Cairo, Egypt.
El-Kereamy is based at Lindcove Research and Extension Center in Exeter, and can be reached at (559) 592-2408, Cell: (661) 703-4678 and aelkereamy@ucanr.edu. Follow him on Twitter at @ashrafelkereamy.
Galdi joins UCCE in Siskiyou County
Giuliano C. Galdi joined UCCE on Jan. 2, 2019, as a UC Cooperative Extension agronomy advisor in Siskiyou County.
Prior to joining UCCE, Galdi was a junior specialist at UC Davis (May 2017 – December 2018), where he worked on a variety of field trials, mainly alfalfa and forage crops, with the objective to improve sustainability of water use and hay quality. Tasks included irrigation scheduling, planting/harvesting trials, and data handling and analysis. As a master's student and student research assistant at Fresno State (2014-2017), Galdi evaluated salinity tolerance in different alfalfa varieties, attended conferences, and presented research in the form of posters and talks. He speaks Portuguese fluently.
Galdi completed a M.S. in plant sciences from Fresno State and a B.S. in agronomy engineering from University of Sao Paulo, Brazil.
Galdi is based in Yreka and can be reached at (530) 842-2711 and gcgaldi@ucanr.edu.
Follow him on Instagram and Twitter at @uccesiskiyou.
Grettenberger joins UCCE as field and vegetable crops specialist
Ian Grettenberger joined UCCE on Jan. 2, 2019, as a field and vegetable crops assistant specialist in the Department of Entomology and Nematology at UC Davis. Grettenberger is interested in advancing integrated pest management in field and vegetable crops, plant-insect interactions, and applied insect ecology.
Grettenberger earned a Ph.D. in entomology from Penn State University and a BS in biology from Western Washington University.
Prior to joining UCCE, Grettenberger was a postdoctoral research scholar at UC Davis, working first with Larry Godfrey and then with Frank Zalom.
Grettenberger is based at UC Davis in Briggs Hall and can be reached at (530) 752-0473 and imgrettenberger@ucdavis.edu. Follow him on Twitter at @IGrett.
Meng joins UCCE in Imperial County
Yu Meng joined UCCE on Jan. 2, 2019, as the youth, families and communities advisor serving Imperial County, UC Desert Research and Extension Center and communities near the U.S.-Mexico border. Her responsibilities will focus on providing community development programs in the area of youth, families, and communities, with major outreach to the Latino youth and families.
Prior to joining UCCE, Meng worked for a USDA-funded project known as "the WAVE~Ripples for change" in collaboration with Oregon State University professionals, extension, community partners, high school soccer coaches, and school districts, and other dedicated volunteers. The program was designed to prevent unhealthy weight gain among 15- to 19-year-old soccer players. Most of the youth she worked with were Latinos and from low-income families. During this time, Meng helped develop and test the first sports nutrition, physical activity, family and consumer sciences curriculum for active youth. Her work resulted in positive developments in youth, reducing added sugar intake, maintaining fruit and vegetable intake over time, and improving the awareness of sports nutrition. Participating youth also applied additional skills they learned from gardening and cooking workshops at their homes and shared the lessons and practical applications with their respective families.
Meng is fluent in Chinese and originally from China, where she worked for food industries and started to notice the nutrition issues with processed foods and their effects on children's health. With that in mind, she came to the U.S. and earned a master's degree and Ph.D.
She completed a Ph.D. in nutrition science from Oregon State University, a M.S. in food science and nutrition from Utah State University, and a B.S. in Food Science and Engineering from Southern China University of Technology, China.
Meng is based in Holtville and can be reached at (442) 265-7700 and ucmeng@ucanr.edu.
York joins UCCE as silviculture and forest specialist
Robert York joined UC ANR on Jan. 2, 2019, as a UC Cooperative Extension silviculture and applied forest ecology assistant specialist and adjunct associate professor of forestry in the Department of Environmental Science, Policy and Management at UC Berkeley. He directs research and management activity on the Berkeley Forests, a network of five research forests covering the western slopes of the Sierra Nevada mixed conifer forest from Shasta to Tulare counties.
York is a Registered Professional Forester in California. He earned a Ph.D. in forest ecology and silviculture, a M.S. in forest community ecology and a B.S. in forest management, all from UC Berkeley.
Prior to joining UCCE, York has been the research station manager at Blodgett Forest Research Station with UC Berkeley.
York is based in Georgetown and can be reached at (530) 333-4475 and ryork@berkeley.edu.
Forbes named Strategic Communications director
Linda Forbes joined UC ANR as Strategic Communications director on Feb. 19.
Forbes brings over 15 years of communications experience as a marketing and branding leader in the private sector and most recently at UC Davis. Since 2012, she served as associate director of marketing at UC Davis, leading initiatives such as the award-winning monthly Aggie Tip Sheet and major advertising campaigns, as well as collaborating with campus colleagues to promote the impact and value of UC Davis on a variety of digital platforms. Travelers who fly out of the Sacramento airport may have seen ads from the last campaign she led, which included the “You sip, we solve” ad showcasing UC Davis advances in protecting the water supply.
Before coming to UC, Forbes led marketing for a statewide accounting firm and managed an automotive aftermarket brand. But Forbes, whose father was a USDA veterinarian, had a desire to contribute her skills to an organization that solves agricultural and environmental issues.
“We look forward to having Linda lead our efforts to transform ANR from the university's ‘best kept secret' to a well-known, valued service,” said Wendy Powers, associate vice president
Forbes is located in room 175 in the ANR building in Davis. She can be reached at (530) 750-1204 and lforbes@ucanr.edu.
Scott joins ANR as payroll manager
Anne Marie Scott joined ANR's Business Operations Center as ANR payroll manager on Feb. 7, 2019.
Scott brings strong payroll management and UCPath expertise with 19 years of UC experience in payroll, employment tax and accounts payable management. Most recently, she served as the payroll manager for the UC Office of the President working in the new UCPath system for the past year and a half. Prior to UCOP, she worked for UC Davis for 17 years as a payroll accountant, accounts payable division manager and also as the payroll manager for one of UCD's new shared service centers. She is also a Certified Payroll Professional.
Her experience working in the UCPath system at UCOP will uniquely enhance ANR's transition of payroll services to the new UCPath system. Scott will lead the ANR BOC payroll team providing time reporting and payroll services to all ANR units statewide. She will also work closely with the ANR Human Resources team to ensure efficient coordination between HR actions and payroll services.
Scott is based at the ANR Building in Davis and can be contacted at ascott@ucanr.edu and (530) 750-1273.
Zilberman awarded Wolf Prize
David Zilberman, a UC Cooperative Extension specialist and professor of agricultural and resources economics at UC Berkeley, has been awarded the 2019 Wolf Prize in Agriculture in recognition of his work developing economic models for fundamental problems in agriculture, economics and policy.
The Wolf Prize is an international award granted by the Wolf Foundation in six categories: agriculture, chemistry, mathematics, medicine, physics and the arts. The prize in the agriculture category is often referred to as the equivalent of a Nobel Prize in agriculture.
The award citation names Zilberman as “a leading protagonist in debates over water policy, environmental and resource policy in agriculture and the bioeconomy,” and highlights his career as “a unique mixture of theoretical work, applied research and extension.”
"I am deeply honored to have been selected,” said Zilberman, who holds the Robinson Chair in the Department of Agricultural and Resource Economics. “This prize is a recognition of my entire community: my family, my collaborators, my teachers in Israel and Berkeley, the College of Natural Resources, and the uniquely supportive and inspiring Berkeley campus."
Read more about Zilberman's career achievements at https://nature.berkeley.edu/news/2019/01/david-zilberman-awarded-wolf-prize-agriculture.
Davy, Mashiri, James and Kyser win award for weed paper
The Weed Science Society of America honored four ANR members with its Outstanding Paper Award, Invasive Plant Science and Management.
Their co-authors were Matthew J. Rinella, U.S. Department of Agriculture-Agricultural Research Service; Susan E. Bellows, U.S. Department of Agriculture-Agricultural Research Service, and Vanelle F. Peterson, Dow AgroSciences.
The award was presented Feb. 11 during the organization's annual meeting in New Orleans.
Humiston honored by California Legislature
The California Legislature recognized Vice President Glenda Humiston and Paul Granillo, president of the Inland Empire Economic Partnership, as recipients of the California Economic Summit's 2018 Steward Leader Awards on Feb. 4.
Humiston received the California Steward Leader Award, which recognizes statewide contributions, and Granillo received the Regional Steward Leader Award, which recognizes regional contributions. The awards were presented at last year's California Economic Summit.
Senator Anna Caballero and Assemblymember Jose Medina issued joint resolutions to Humiston and Granillo commending their exemplary records of civic leadership, both have served on the California Economic Summit Steering Committee since its inception in 2011.
Caballero read a resolution recognizing VP Glenda Humiston as recipient of the 2018 California Steward Leader Award.
Read more about Humiston's award at https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=28665.
- Author: Jeannette E. Warnert
The health benefits of grass-fed beef are well documented. Meat from cattle that live out their lives grazing on rangeland before being processed has more beta-carotene, vitamin E and omega-3 fatty acids than the meat from animals finished at feed lots.
The health benefits – and for some consumers, the idea that cattle raised on the range have longer, happier lives than conventional beef cattle – increases the value of the product. Grass-fed beef generally sells for 60 percent more per pound than standard beef. These potential premium prices get cattle ranchers' interest, and therefore captured the attention of UC Cooperative Extension rangeland advisor for Mariposa and Merced counties Fadzayi Mashiri.
Two major challenges face ranchers who wish to produce grass-fed beef: the lack of local processing plants, and the unfamiliar marketing strategies that successfully selling a niche product demands.
“I decided to bring ranchers together to discuss these issues,” Mashiri said. She formed a group that meets regularly in Mariposa County to discuss how they might be able to work as a team to break into the grass-fed beef market. Mashiri sees this project as an opportunity for the ranchers to diversify their sources of income and increase profit margins.
“Farm to fork is getting big,” said Marshall Long, a Mariposa County supervisor and rancher who attended the meeting this fall. “I want to keep those value-added dollars in the county.
Most of the ranchers in the valley and foothill counties of Merced, Mariposa, Madera and Fresno have cow-calf operations. After calves are born on the range, they stay on the land for about a year before being sold at auctions and fed grain or other high-carbohydrate feeds in feedlots. In grass-fed production, yearlings aren't sold, but rather kept on the land for another two years before they are processed.
The meat can be quite different. Grass-fed cattle produce meat with a distinctive flavor, less marbling, and a yellow cast. And, it commands a higher price.
“We have strength in numbers,” Schiff said.
Made in Mariposa is a potential marketing partner, or represents a model for local beef producers to emulate.
“If we think big, how big do we want to be?” Mashiri asked. “Can we work together to relieve individual producers of the pressure of selling on their own?”
The producers concluded that their next step would be a market study to determine whether stores and restaurants would be willing to pay for a ready supply of grass-fed beef. Schiff of Made in Mariposa and Mashiri will identify grant opportunities that would allow the group to move forward with the study.
Under Mashiri's leadership the ranchers will come together again in the spring to continue their planning work together to increase their businesses' bottom lines by diversifying into the production of a specialty meat product.
With some recent forecasts bringing encouraging news about a potential El Niño, some ranchers have been asking about what they should expect in terms of forage production, if and when the rains come. What they want to know is how soon rangeland productivity will reach the pre-drought levels again. One issue that I always draw their attention to is the levels of residual dry matter (RDM) on the rangelands. Even with the reduction in herd sizes and shorter grazing seasons employed by most producers, more rangelands now have less than recommended RDM levels.
RDM is a measure of the old plant material (without counting summer annuals) that are left standing or on the ground before the fall precipitation comes. It is a great indicator of both forage production and grazing intensity. These leftover plant materials are critical on California rangelands to reduce erosion and nutrient loss, and to create a conducive environment for diverse plant communities to thrive. Optimum RDM levels are site specific, they range from 100-2,100 pounds per acre, and depend on precipitation zone, slope and tree canopy cover. Ideal RDM levels increases with precipitation and slope, and decreases with tree cover. Studies show that too low or too high RDM levels will reduce species composition and forage production, both factors critical to any livestock production system. The good news is that annual rangelands are resilient and will likely return to normal production within two years after bringing RDM level to recommended standards.
Knowing the RDM standards for one's rangeland and continuously monitoring is an important step towards achieving sustainable rangeland management and livestock production.
Details about RDM standards, data collection methods and more can be found in the free UC Agriculture and Natural Resources publication Guidelines for Residual Dry Matter on Coastal and Foothill Rangelands in California.
Author: Fadzayi Mashiri, Ph.D.
- Author: Fadzayi Elizabeth Mashiri
Statements such as: "This year is the best (or worst) grass year of my adult life" or "We started seeing this weed on our property about 10 years ago and now it is all over" are commonly used to describe rangeland condition. Although such statements are most likely correct, what is lacking in most cases is rangeland monitoring data to support these statements.
What is rangeland monitoring? Rangeland monitoring is observing, collecting and analyzing data to document change over time and how these changes may relate to management and environmental factors such as climate and soil.
Landowners need monitoring programs to detect:
- Rangeland improvement so they know to continue the good management
- Negative changes in order to take corrective measures
- Weed infestation in order to start weed control
- Effects of an extreme event, e.g. drought.
Although most ranchers and rangeland scientists agree that rangeland monitoring data is critical for landowners to make informed management decisions and to better understand rangeland ecosystems, the problem is that most monitoring protocols can be time consuming and data too complex to analyze and interpret. This is especially true for rangeland managers and landowners who are busy with all the day-to-day land, animal and infrastructure management. As a result most find it difficult to add consistent rangeland monitoring to their schedules.
However, repeat photography, which is a simple and fast monitoring method that produces easy to interpret information, can be the answer. Although repeat photography does not provide detailed information, it can show changes in plant growth, plant cover, species composition, residual biomass, litter and vegetation structure.
Establishing a good repeat photo monitoring protocol involves selecting the right 1) site to take photos, 2) plot size (small plot to landscape view), 3) timing (what season) and 4) frequency (how often) to take photos, based on the goals. When monitoring for trends at management unit level, it is best to select a site that is representative of a largest part of the management unit.
For more information, see the UC Agriculture and Natural Resources guideline for using photographs to monitor rangeland, Photo-Monitoring for Better Land Planning and Assessment.
/table>- Author: Jeannette E. Warnert
Medusahead, an unwelcome transplant from Europe, is anathema to the cattle living off rangeland grass. The weed's three-inch-long bristles poke and sometimes injure the animals' mouths and eyes. The weed is also low-quality forage for livestock. When medusahead takes over rangeland, it reduces the forage value by 80 percent.
When Fadzayi Mashiri, UC Cooperative Extension advisor in Mariposa, Merced and Madera counties, was appointed in 2013, she became the first natural resources and rangeland expert to hold the position since the retirement of Wain Johnson more than a decade before. She polled local ranchers to determine their most pressing problems. They said weed management, and in particular, medusahead.
Medusahead is relatively easy to identify on the range. It has distinctive stiff awns and a seed head that does not break apart as seeds mature. Patches of medusahead are obvious when spring turns into summer.
“Medusahead stays green after most of the annual grasses have dried off,” Mashiri said.
Medusahead has high silica content, making it unpalatable to cattle. The silica also protects the plant from decomposition, so a thick thatch builds up on the rangeland, suppressing more desirable species, but not the germination of the next year's medusahead seedlings.
- Corral cows on medusahead before the plant heads out or employ sheep to graze medusahead patches. It's not sheep's favorite forage either, but they will eat if left with no other option.
- Prescribed burning in late spring or early summer. However, this strategy poses air quality and liability issues.
- Apply nitrogen fertilizer to medusahead to improve palatability before it flowers, which is showing promise for controlling the weed and boosting the value of infested rangeland.
- Chemical control.
In spring 2014, Mashiri conducted a demonstration field trial in Mariposa County of medusahead control with the herbicide Milestone, which was developed by Dow AgroSciences mainly to control broadleaf weeds like yellow starthistle. The trial followed rangeland weed control research done by scientists including Joe DiTomaso, UC Cooperative Extension specialist in the Department of Plant Sciences at UC Davis. DiTamaso found that the density of medusahead in treated areas declined and concluded that Milestone prevents medusahead seedlings from thriving.
Unfortunately, Milestone treatment of large rangeland areas is expensive.
“But if the value of forage declines, the productivity of livestock is compromised,” Mashiri said. “When you look at it that way, the chemical treatment might be useful.”