URGENT HLB Quarantine UPDATE

HLB Quarantine Update

A Huanglongbing (HLB) quarantine is now in effect in part of Los Angeles County following the detection of HLB in four citrus trees.

On July 10, a kumquat tree on a residential property was confirmed to be infected with the incurable HLB disease. After extensive surveying and testing in the area, three more diseased trees were found nearby. The four diseased trees were on four separate properties close to one another. The tree varieties include kumquat, lime, mandarin and calamondin.

California Department of Food and Agriculture (CDFA) has already removed two of the diseased trees and is currently working with the homeowners at the other two properties to remove those trees as soon as possible. See the CDFA press release below for more details on the resulting quarantine.

QUARANTINE FOR HUANGLONGBING DECLARED IN SAN GABRIEL, LOS ANGELES COUNTY

SACRAMENTO, July 22, 2015 – An 87-square mile quarantine in the San Gabriel area of Los Angeles County has been added to the existing huanglongbing (HLB) quarantine in the Hacienda Heights-area following the detection of the citrus disease huanglongbing, or citrus greening.

Additional information, including a map of the quarantine zone, is available at the CDFA Save Our Citrus website. The quarantine boundaries are: on the north, E. Orange Grove Boulevard; on the east, N. Lemon Avenue; on the west, Griffin Avenue; and on the south W. La Habra Boulevard.

This area is part of a much larger quarantine already in place for the Asian citrus psyllid (ACP), the pest that spreads bacteria causing huanglongbing (HLB). The new quarantine will prohibit the movement of all nursery stock out of the area, while maintaining existing provisions allowing the movement of only commercially cleaned and packed citrus fruit. Any fruit that is not commercially cleaned and packed, including residential citrus, must not be removed from the property on which it is grown, although it may be processed and/or consumed on the premises.

“The success of any quarantine depends on cooperation from those affected,” said CDFA Secretary Karen Ross. “The stakes couldn’t be higher for California citrus. We urge residents in the San Gabriel-area to do all they can to comply.”

CDFA, the USDA and the Los Angeles County Agricultural Commissioner’s continue their work to investigate the source of the disease, to survey and test for it throughout the Los Angeles Basin, and to continue with ground treatment of citrus trees within 800 meters of the find sites – which began earlier this week. In the long term, the strategy is to control the spread of ACPs while researchers work to find a cure for the disease.

Huanglongbing has been confirmed four times in San Gabriel, in a kumquat tree on a residential property, in a lime tree on an adjacent residential property, and in calamondin and mandarin trees on residential properties in close proximity to the original find. The disease is bacterial and attacks the vascular system of plants. It does not pose a threat to humans or animals. The Asian citrus psyllid can spread the bacteria as the pest feeds on citrus trees and other related plants. Once a tree is infected, there is no cure; it typically declines and dies within a few years.

Huanglongbing is known to be present in Mexico and in parts of the southern U.S. Florida first detected the disease in 2005, and the University of Florida estimates that the disease causes an average loss of 7,513 jobs per year, and has cost growers $2.994 billion in lost revenue since then. Huanglongbing has also been detected in Georgia, Louisiana, South Carolina and Texas as well as Puerto Rico and the U.S. Virgin Islands.

A total of 15 states or territories are under full or partial quarantine due to the presence of the ACP: Alabama, American Samoa, Arizona, California, Florida, Georgia, Guam, Hawaii, Louisiana, Mississippi, Northern Mariana Islands, Puerto Rico, South Carolina, Texas, and the U.S. Virgin Islands.

The Asian citrus psyllid was first detected in California in 2008 and quarantines for the pest are now in place in 17 California counties. If Californians believe they have seen evidence of huanglongbing in local citrus trees, they are asked to please call CDFA’s toll-free pest hotline at 1-800-491-1899 FREE. For more information on the Asian citrus psyllid and huanglongbing, please visit: http://www.cdfa.ca.gov/phpps/acp/.

California Ag Today2016-05-31T19:28:09-07:00July 23rd, 2015|

Location! Location! Location!

UC ANR Research and Extension Centers Strategically Located

By Charmayne Hefly, Assistant Editor, California Ag Today

Bill Frost is the director of the University of California, Division of Agriculture and Natural Resources’ Research and Extension Center System that has nine different research and extension centers located throughout the state.

UC ANR Research and Extension Center System

Describing the strategy in their geographic placement, Frost said, “We have located them in different growing zones, climates and environments. We have chosen everything from the desert region in El Centro, to cropland here in Kearney, to livestock grazing in both our Hopland and Sierra Foothill Research and Extension Centers, all the way up to Intermountain in Tulelake, where we research potatoes, garlic and crops that can be grown in that fairly short growing season.”

The goal, according to Frost, is to solve local issues from a local or regional perspective. “Each one of our centers has different environments, crops and pest issues to address,” he explained. “These diverse locations are critically important to us because we can do localized, applied research and get useful information out to people, whether they are homeowners in their gardens or growers managing a thousand acres of a crop.”

Frost noted the UCANR Research and Extension Center System has been actively seeking new personnel to better meet the needs of growers. “Just in the last four years,” he said, “we’ve hired almost one hundred new cooperative extension advisors and specialists around the state—many of whom are housed here at the Kearney Research and Extension Center. They are also housed on UC campuses and in our county Cooperative Extension offices.”

Frost commented, “We continue to be relevant. We continue to do cutting-edge applied research. Our programs provide information to everyone; from our youth development program in 4-H and our nutrition education, to master gardener programs that help homeowners with pest problems and water management.”

“And of course, we serve the agricultural community. We have a lot of good research going on and we’re generating lot of good information in commodity production, pest management and water management,” Frost said.

The nine UC ANR Research and Extension Stations are:

Desert Research & Extension Center in El Centro
Hansen Research & Extension Center in Santa Paula
Hopland Research & Extension Center in Hopland
Intermountain Research & Extension Center in Tulelake
Kearney Agricultural Research & Extension Center in Parlier
Lindcove Research & Extension Center in Exeter
Sierra Foothill Research & Extension Center in Browns Valley
South Coast Research & Extension Center in Irvine
West Side Research & Extension Center in Five Points

Featured Photo: UC ANR

Patrick Cavanaugh2016-05-31T19:28:10-07:00July 20th, 2015|

Viticulturist Mark Greenspan Confirmed as ASEV President

Announced TODAY, Mark Greenspan, president of Advanced Viticulture Inc., has been confirmed to serve as the American Society for Enology and Viticulture (ASEV) 2015-2016 president. Greenspan succeeds Lise Asimont of Francis Ford Coppola Presents to lead ASEV’s 12-member board.

Mark Greenspan, president of American Society for Enology and Viticulture

“Throughout my career, ASEV has been the go-to source for reliable, thoughtful research and science that has been critical to my success and that of my vineyard clients. It’s a real honor to serve as the Society’s new president and to hopefully carry on the impressive work of Lise and the other dedicated ASEV past presidents,” said the new ASEV president.

Greenspan, a Sonoma County resident, provides premiere vineyard consultation in water management, nutrient management, precision viticulture and vineyard design, establishment and management. He has operated Advanced Viticulture for over 10 years. Previously, he was the viticulture research manager at E&J Gallo, responsible for viticulture experiments in the north coast vineyards and collaborative projects throughout the state of California. He is a monthly contributor to Wine Business Monthly and periodic contributor to other trade publications. He presents at local, national and international events, and is a certified crop advisor (CCA) and certified professional agronomist (CPAg). Mark has served on review panels for the American Vineyard Foundation and Viticulture Consortium – West and Viticulture Consortium – East. He is a member of Sonoma and Napa Viticulture Technical Groups, Sonoma County Farm Bureau and Napa Valley Grape Growers Association. He’s a former director of the UC Davis Trellis Alliance and sponsor of the Sonoma County Winegrape Commission.

As an active 25-year ASEV member, Mark has held several ASEV positions and served as a reviewer for the American Journal of Enology and Viticulture (AJEV). He has served on the best paper review committee, annual meeting technical abstract review committee, annual meeting program committee, and as sessions chair. He received the ASEV Best Viticulture Student Paper Award in 1991.

ASEV has also confirmed two new directors: Patty Skinkis, associate professor at the Department of Horticulture at Oregon State University, and Hans Walter-Peterson, viticulture extension specialist at Cornell Cooperative Extension. In addition, the Society has announced its 2015-2016 executive team members: Nichola Hall of Scott Laboratories, confirmed as first vice president; James Harbertson of Washington State University, elected as second vice president; and Tom Collins of Washington State University will serve as secretary-treasurer. Additional Board members continuing current terms are: AJEV Science Editor Linda Bisson and Technical Program Director M. Andrew Walker, both of the University of California, Davis; and Directors Lise Asimont of Francis Ford Coppola Presents, Kristen Barnshisel of J. Lohr Vineyards & Wines, and Kay Bogart and Anita Oberholster, both from the University of California, Davis.

Formed in 1950 as a professional society dedicated to the interests of enologists, viticulturists and others in the fields of wine and grape research and production, the ASEV’s membership of more than 2,000 includes professionals from wineries, vineyards, and academic institutions and organizations around the world. In addition to publishing the AJEV, the Society also hosts its National Conference (slated for Monterey in June of 2016) and co-presents the Unified Wine & Grape Symposium in January with the California Association for Winegrape Growers. For more information, visit www.asev.org.

California Ag Today2016-05-31T19:28:10-07:00July 16th, 2015|

Bio-Solarization Research

Bio-Solarization for Soil Pest Management

By Patrick Cavanaugh, Associate Editor, California Ag Today

Yigal Achmon is a post-doctoral scholar at UC Davis in the department of Food Science and Technology. He explains some current research they are doing with solarization, a non-chemical method for controlling soilborne pests using high temperatures produced by capturing radiant energy from the sun without leaving chemical residues. A simple method appropriate for the home gardener or the large scale farmer, solarization also improves soil structure by increasing the availability of nitrogen and other essential nutrients for growing healthy plants.

The method involves heating the soil by covering it with a clear plastic tarp for 4 to 6 weeks during a hot period of the year when the soil will receive the most direct sunlight. When properly done, the plastic sheets allow the sun’s radiant energy to be trapped in the soil, heating the top 12 to 18 inches and killing a wide range of soilborne pests, such as weeds, pathogens, nematodes, and insects. The effect of solarization is greatest at the surface of the soil and decreases at deeper soil depths. The maximum temperature of soil solarized in the field is usually 108° to 131°F at a depth of 2 inches and 90° to 99°F at 18 inches. Controlling pests found in the upper 6 inches of earth is the most efficient target.

“We are now at the stage where we are testing bio-solarization, with the goal of further improving the effectiveness of solarization by incorporating organic materials and bi-products. Hopefully, bio-solarization will change the soil pest management field,” Achmon said, “giving us new insight into what we call ‘closing the loop’. We will be able to use what we should no longer call ‘waste, but rather residue with high potential, like tomato residue or grape residue, and incorporate it into our standard solarization method to achieve bio-solarization.”

Achmon reports observing this new bio-solarization system in the laboratory achieving higher temperatures than standard field solarization, and researchers are discovering a wide range of pest management effects. “This is like lowering the pH while incorporating organic waste,” said Achman.

Achmon championed the benefits of bio-solarization, “We are using up a lot of waste, which has long been a huge problem. This is a very interesting stage because we are studying both the chemical and biological effects of the method. And now with all the next-generation sequencing identification tools, we can start to discover which soil microbes are there working for us.”

Patrick Cavanaugh2016-05-31T19:28:11-07:00July 13th, 2015|

HLB Found in LA

Huanglongbing Detected on LA County Pre-Symptomatic Kumquat Tree

By Patrick Cavanaugh, Farm Director; Laurie Greene, Editor, California Ag Today

#CitrusMatters (provided by Bayer CropScience, in partnership with California Citrus Mutual)

“It’s disappointing, but fortunately it was found in a residential area,” commented Joel Nelsen, president of California Citrus Mutual (CCM), on the second discovery of Huanglongbing [wong-long-bing] (HLB), or citrus greening, in California. CCM refers to HLB as “a death sentence for California citrus” as once the plant is infected with this bacterial disease, there is no known cure.

Joel Nelsen, president, California Citrus Mutual

“HLB was detected in plant material taken from a kumquat tree in a residential neighborhood in the San Gabriel area of Los Angeles County,” Nelson stated. “The 20-year-old tree was in the front yard of a residence and had not yet shown any symptoms.”

The San Gabriel neighborhood is located about 15 miles from Hacienda Heights, where the first HLB case in the state was detected in 2012 in a residential citrus tree. The An aggressive trapping program for the Asian citrus psyllid (ACP), a pest known to spread the HLB bacteria as it feeds on citrus trees and other plants, has been ongoing ever since this first finding, including in the San Gabriel area.

“It’s fortunate that the homeowner is quite cooperative,” said Nelsen, “and other neighborhood homeowners are allowing officials to run PCR tests (polymerase chain reaction) on samples of their trees to determine if the disease is present.” PCR analysis is a sensitive research technique for detecting and identifying small numbers of bacteria in plants via DNA amplification.

Nelsen declared, “This find is exactly what the Citrus Pest and Disease Prevention Program is designed to do. PCR testing of a random sampling of leaves and stems in the area, as our program prescribes, enabled us to hit a positive” before symptoms appeared.

“We do not know how long the tree had been diseased,” said Nelsen, “but we do know that we have been trapping ACPs there for a long time and had not found any HLB before. You do not want to

find anything,” Nelsen said, “but when you do, you want to find it before it becomes an epidemic.”

In a statement on Friday, California Department of Food and Agriculture (CDFA) Secretary Karen Ross said, “Citrus is a cherished part of our landscape and our shared history, as well as a major agricultural crop.” CDFA has been planning and preparing for HLB detections since before the first ACP was detected in the state in 2008. Quarantines are now in place in 17 California counties.

Los Angeles County Agricultural Commissioner Kurt Floren will mobilize his team over this week to check on citrus trees in plant nurseries that fall within the 800-meter radius around the infected tree area. A spray protocol is already in place for all citrus trees within the 800-meter radius.

“More traps are going out so we can try to delineate the scope of the problem. Hopefully it will be nothing more than this one tree, like the solitary diseased tree we found in Hacienda Heights,” Nelsen said.

Resources

To support the citrus industry in its fight against HLB, go to California Citrus Mutual Action Center.

For questions about the ACP or HLB, visit or call CDFA’s toll-free pest hotline at 1-800-491-1899.

View the Distribution Map of ACP, HLB and parasites in California published by the UNIVERSITY OF CALIFORNIA Division of Agriculture and Natural Resources.

USDA’s free “Save Our Citrus” iTunes app

Visit the Citrus Pest & Disease Prevention Program.

Verify plant symptoms at USDA’s SaveOurCitrus website.

For information and ACP solutions, go to #citrusmatters, provided by Bayer CropScience, in partnership with California Citrus Mutual

California Ag Today2016-05-31T19:28:11-07:00July 13th, 2015|

UC ANR Horticulture Advisor Retires After 28 Years

John Kabashima wrapped up his horticultural career on July 1, after 28 years with University of California Agriculture and Natural Resources. Nursery professionals lauded the UC Cooperative Extension advisor’s service to the nursery and landscape industry and to homeowners in Orange and Los Angeles counties.

“He’s one of the few people who could translate science into business with a sense of candor and fact-based conversation,” said Robert Crudup, president of Calabasas-based Valley Crest Tree Company, of Kabashima.” John has long-term vision, which he used throughout his career to move the nursery industry forward.”

John Kabashima, UC ANR

“He is smart about political science as well as plant science,” Crudup said. On a regular basis, Kabashima would warn growers about emerging issues that were likely to affect the nursery industry, such as regulations to control the spread of polyphagous shot hole borer, red imported fire ant and palm borer.

“He’s been very, very valuable,” said retired nurseryman Gary Hayakawa, noting that Kabashima not only contributed research on pest control and water issues for the nursery and landscape industries, but also persuaded people from UC campuses, the California Department Food and Agriculture and industry to work together. “Before he was involved in issues, the work was all separate. Industry didn’t have input,” Hayakawa said. “What John has done is to work with all three to form a coalition.”

Crudup, whose company has nursery operations in Los Angeles, Ventura, Alameda and San Joaquin counties, agreed.

“John’s biggest contribution was his work with the glassy-winged sharpshooter subcommittee,” said Crudup, who served on the subcommittee. “He brought a voice of reason that helped counterbalance emotional sides of the discussion.”

“His ability to act as the primary liaison between the nursery industry, CDFA, the UC, the county agricultural departments and the wine and grape industries was the primary reason this part of the GWSS (glassy-winged sharpshooter) program was so successful and, more importantly has resulted in the continued viability of the California nursery industry in light of significant regulatory pressures,” said Bob Wynn, who was statewide coordinator of the CDFA Pierce’s Disease Control Program and who continues to oversee the program as senior advisor to Secretary Karen Ross.

“The CDFA, with advisement and counseling from John, developed what is known as the Approved Nursery Treatment Program, which allows nurseries in the infested areas of the state to ship by merely treating the plants with an approved treatment,” Wynn said. “John was the primary author in the development of the nursery ‘Approved Treatment Best Management Practices’ document published in 2008. The use of this document has allowed the nursery industry to save millions of dollars in regulatory compliance costs over time.”

A native of Los Angeles, Kabashima says he started working in his family’s nursery business as soon as he was tall enough to water 1-gallon nursery plants. “After killing thousands of plants, I was finally allowed to manage the family business from 1970 to 1976,” he quipped.

In 1976, his family sold the nursery and Kabashima enrolled at California Polytechnic University, Pomona. After he earned a B.S. in agricultural biology from Cal Poly Pomona in 1979, he was hired by UC Riverside horticulture entomologist Pat Morishita as a lab technician. While working at UC Riverside, Kabashima earned a master’s degree in pest management. He would later complete a Ph.D. in entomology at UC Riverside.

Kabashima earned his MBA at Pepperdine University in 1986 while managing the Ornamental Horticulture Division at Target Specialty Products. In 1987, the UC Division of Agriculture and Natural Resources recruited him to become a UC Cooperative Extension environmental horticulture advisor in Orange and Los Angeles counties.

Over the years, he has studied the management of insects, diseases and weeds in horticulture production systems, biological control of exotic pests, and water-related problems in landscapes, golf courses, nurseries, municipalities and watersheds.

In 1998 Kabashima took over the fledgling UC Master Gardener Program in Orange County, which as of now has trained more than 300 UC Master Gardener volunteers to extend research-based information on gardening and horticulture to the public.

The UCCE environmental horticulture advisor has also served as director of UC Cooperative Extension in Orange County and interim director of the UC ANR South Coast Research and Extension Center.

In 1994, when Orange County filed for bankruptcy and the Board of Supervisors voted to discontinue funding and housing for the local UC Cooperative Extension, Kabashima worked with Gary Hayakawa to keep UCCE in the county.

“When Orange County cut Cooperative Extension’s budget, we found out that without extension you don’t have 4-H or Master Gardeners,” Hayakawa said. To preserve the UC Cooperative Extension programs, Hayakawa, who was an Orange County Fair Board member, helped Kabashima secure office space in trailers on the fairgrounds. In 2014, the UCCE office moved from the fairgrounds to UC ANR South Coast Research and Extension Center in Irvine.

Kabashima belongs to many professional organizations including the Entomological Society of America, California Association of Nurseries and Garden Centers, Nursery Growers Association, Western Chapter of the International Society of Arboriculture, United Agribusiness League, and San Diego Flower and Plant Association. The scientist has served on numerous government and industry advisory committees.

Throughout his career, Kabashima’s achievements in education and research have been recognized by various organizations. To name a few, he received the 1987 Education and Research Award from the Orange County Chapter of the California Association of Nurseries and Garden Centers (CANGC), 1993 CANERS Research Award from CANGC, 2002 Nursery Extension Agent Award from the American Nursery and Landscape Association, 2008 Western Extension Directors Award of Excellence, 2010 Entomological Society of America’s National IPM Team Award and the 2011 California Agriculture Pest Control Advisors Association Outstanding Contribution to Agriculture Award. In 2014, he and his friend Hayakawa were inducted into the Green Industry Hall of Fame.

Being a UCCE advisor has suited Kabashima. “I love learning new things, sharing that information with others, and using my skills to solve problems facing California, such as the ever-increasing arrivals of exotic and invasive pests,” he said. The avid photographer has been able to unite his avocation with his vocation. His photographs of insects have been used to illustrate textbooks, websites and news articles.

“Success in one’s field is often a combination of natural ability, informal and formal training and education, being mentored, and networking with collaborators and colleagues, all sprinkled with a little bit of luck and support from one’s family and friends,” Kabashima said.

In retirement, Kabashima plans to seek new culinary experiences with his wife Janet and daughter Misa, at home and in their travels together. He has been granted emeritus status by UC ANR and he will continue his efforts to help UC Irvine save trees on its campus that are infested with polyphagous shot hole borer.

UC Agriculture and Natural Resources researchers and educators draw on local expertise to conduct agricultural, environmental, economic, youth development and nutrition research that helps California thrive. Learn more at ucanr.edu.

California Ag Today2016-05-31T19:28:11-07:00July 12th, 2015|

BREAKING NEWS ON HUANGLONGBING CITRUS DISEASE

HUANGLONGBING CITRUS DISEASE DETECTED IN SAN GABRIEL AREA OF LOS ANGELES COUNTY
CDFA
Release #15-031

Sacramento, July 10, 2015 – The California Department of Food and Agriculture (CDFA) and the United States Department of Agriculture (USDA) have confirmed detection of huanglongbing (HLB) citrus disease, or citrus greening. The disease was detected in plant material taken from a kumquat tree in a residential neighborhood in the San Gabriel area of Los Angeles County.

This is the second time HLB has been detected in California. The first detection occurred in 2012 in a residential citrus tree in Hacienda Heights, about 15 miles from San Gabriel.

HLB is a bacterial disease that attacks the vascular system of plants. It does not pose a threat to humans or animals. The Asian citrus psyllid (ACP) can spread the bacteria as the pest feeds on citrus trees and other plants. Once a tree is infected, there is no cure; it typically declines and dies within a few years.

“Citrus is a cherished part of our landscape and our shared history, as well as a major agricultural crop,” said CDFA Secretary Karen Ross. “CDFA is moving quickly to protect the state’s citrus. We have been planning and preparing for HLB detections with our growers and our colleagues at the federal and local levels since before the ACP was first detected here in 2008.”

A CDFA crew has removed and disposed of the infected tree and is preparing to conduct treatment of citrus trees for ACP infestation within 800 meters of the find site. By taking these steps, a critical reservoir of disease and its vectors will be removed, which is essential.

An intensive survey of local citrus trees and psyllids is underway to determine if HLB exists anywhere else in the area. Planning has begun for a quarantine of the area to limit the spread of the disease by restricting the movement of citrus trees, citrus plant parts, green waste, and all citrus fruit except what is commercially cleaned and packed. As part of the

SAVE OUR CITRUS app is a free USDA iPhone to report and identify the four leading citrus diseases: citrus greening, citrus canker, citrus black spot and sweet orange scab. Report your symptoms, upload a photo and citrus experts will respond.

quarantine, citrus and closely related plants at nurseries in the area will be placed on hold.

Residents of quarantine areas are urged not to remove or share citrus fruit, trees, clippings/grafts or related plant material. Citrus fruit may be harvested and consumed on-site.

CDFA, in partnership with the USDA, local agricultural commissioners and the citrus industry, continues to pursue a strategy of controlling the spread of ACPs while researchers work to find a cure for the disease.

HLB is known to be present in Mexico and in parts of the southern U.S. Florida first detected the pest in 1998, and the disease in 2005, and the two have now been detected in all 30 citrus-producing counties in that state. The University of Florida estimates that the disease causes an average loss of 7,513 jobs per year, and has cost growers $2.994 billion in lost revenue since HLB was first detected in that state in 2006.

HLB has also been detected in Georgia, Louisiana, South Carolina and Texas, as well as Puerto Rico and the U.S. Virgin Islands. A total of 15 states or territories are under full or partial quarantine due to the detected presence of the Asian citrus psyllid: Alabama, American Samoa, Arizona, California, Florida, Georgia, Guam, Hawaii, Louisiana, Mississippi, Northern Mariana Islands, Puerto Rico, South Carolina, Texas, and the U.S. Virgin Islands.

The ACP was first detected in California in 2008, and quarantines are now in place in 17 California counties. If Californians have questions about the ACP or HLB, they may call CDFA’s toll-free pest hotline at 1-800-491-1899 or visit: http://www.cdfa.ca.gov/phpps/acp/.

Patrick Cavanaugh2016-05-31T19:28:11-07:00July 10th, 2015|

UC Cooperative Extension Farm Advisor in Ventura County

By Laurie Greene, Editor California Ag Today

Ben Faber, UC Cooperative Extension Farm Advisor in Ventura County, works with growers who farm a variety of different crops including blueberries, raspberries, blackberries and strawberries as well as lemons and avocados.

Faber is developing new approaches for better avocado pruning to increase yield. “We have not done a lot of pruning on avocados in the past,” Faber said, “because this plant species responds to pruning in a very rapid fashion with a lot of shoots and water sprouts, so people have been scared to prune avocados. Over time, we have learned how to prune avocados somewhat differently than other tree crops.”

Faber said the two pruning choices are a heading cut and a thinning cut. “A heading cut,” he explained, “is often what you see peach growers doing, indiscriminately cutting into a branch. Well, they are actually doing is selecting the branches that will be the fruiting branches for the next year. Whereas, if you do that in avocados, you just get a lot of wild regrowth.”

So Faber believes the strategy in avocados has to be a thinning cut, “where you prune back to a sub-tending branch or a crotch so the remaining branch continues growth. This method controls growth lower down in the branch. It has taken a long time to discover this, though it seems simple now.”

He added, “Thinning cuts are all about keeping the tree from ‘crowning out,’ which reduces yield. As neighboring trees start shading each other, the flowering and fruiting spreads to the very top of the tree. This is where you see significant yield reduction because instead of having fruit form all over the tree’s canopy, fruit and flower production forms only on the very top of the canopy.” Faber said.

“Keeping the avocado fruit lower in the tree is better for harvesters to grab,” Faber commented. “So, growing fruit high in the tree presents not only yield loss, but a worker safety issue as well.”

California Ag Today2016-05-31T19:28:11-07:00July 9th, 2015|

New Partners Offer MRL Database

Agrian and Bryant Christie Inc. Partner Up for MRL Database

By Patrick Cavanaugh, Assistant Editor, California Ag Today

They’re called “Maximum Residue Levels”(MRLs) and nearly all crop protection products have them; however, keeping track of MRLs for export is difficult. To this end, two companies have joined together to provide an MRL Database, globalmrl.com, to help the Ag industry comply with MRL regulations. Bryant Christie Inc. of Seattle, helps open, maintain and expand international markets by eliminating trade barriers for Ag exports. Agrian, Inc., a Fresno-based service-oriented company, provides subscription-based online information on most crop protection and nutrient products.

Nishan Majarian, chief executive officer and cofounder of Agrian Inc.

Nishan Majarian, ceo and cofounder of Agrian, reported, “Several years ago we had a large ag retail customer who became concerned about MRLs and global export. We developed recomendation writing tools that ensure the safe application of crop protection materials, and MRL’s are an extension of that. We did not have an MRL database, so we called around and found out that Bryant Christie had the premier global MRL database.”

So Majarian reached out to James Christie, president and managing director of Bryant Christie, “And we began the process of partnering for a hybrid system that uses both his data and our data to ensure the safe application of a material, and give insight into the export requirements of that crop.”

James Christie, president of Bryant Christie, Inc.

James Christie added, “At Bryant Christie, we work on preventing trade violations, such as chemical and food additive violations, and on ameliorating consequences when they occur. So for us, this collaboration makes so much sense. If we can avoid violations, we can help the ag industry considerably.”

And those consequences can cost ag exporters significant amounts of money, “The consequences range from a single cargo load lost to a violation,” said Christie, “to bad public relations, to having an entire commodity prohibited from entering a foreign country.”

They developed an MRL database, a one-stop resource, Christie explained, “in 1992, with our first client for the hop industry. It is just the best way to keep and manage the information. As database technology advances, it’s made even more sense to have it in that format.”

Majarian said the successful partnership with Bryant Christie is a matter of being at the right place, at the right time. “We think domestic and global compliance are growing in irreversible trends,” Majarian elaborated, “and as more field-level users move to digital record-keeping, these tools and the database will only grow in importance over time. We are excited to be on the cutting edge of online technical solutions. Sometimes I call it the ‘bleeding edge’ because it is a little painful to be innovators.”

Resource Links:

Bryant Christie, Inc.

Agrian, Inc.

Global MRL Database

Patrick Cavanaugh2016-05-31T19:28:12-07:00July 7th, 2015|

Happy Fourth to All

Our Third President on This Fourth of July

On this Fourth of July, it’s fitting to focus on Thomas Jefferson, the nation’s Agrarian President and signer of the Declaration of Independence 239 years ago.

Yes, our third President was Thomas Jefferson an agronomist, an educated man of the land. So, unique in his time, he believed in proper land stewardship for posterity.

Jefferson understood that humanity affected the environment, so he practiced crop rotation with an extensive seven-year plan, using wheat, turnips, corn, potatoes, peas, rye and clover, buckwheat, and livestock grazing.

He tested to determine the exact number of cattle required to fertilize a given area of land and compared grain yields on manure vs. unfertilized fields.

“Agriculture … is our wisest pursuit, because it will

in the end contribute most to real wealth, good

morals & happiness.”

Jefferson developed scientific plowing of “least resistance,” which lifted and turned the sod to a depth of about six inches, enabling farmers to contour-ridge erodible fields, plow out shallow ditches, and ridge poorly drained flat lands.

He terraced his vegetable garden, orchard, and vineyard sites, and planted native ground cover to stop erosion.

He conserved timber by not cutting trees for any purpose as long as cut wood was available.

As U.S. envoy to France, he sent seeds of various grasses, fruits and vegetables, acorns, olive plants to agricultural societies, farmers, and botanists back home.

He brought Italian rice to South Carolina, pecan trees to the eastern United States and was first to introduce Brussels sprouts, eggplant, cauliflower, and broccoli.

He encouraged agricultural societies, agricultural education and university-level research.

Jefferson kept extensive farm journals for nearly six decades on the 170 varieties of fruits and 330 different kinds of vegetables he cultivated, and on his experiments with viticulture and beer brewing.

Another July 4^th notation

Presidents John Adams (who lived to 90 years old) and Thomas Jefferson (who lived to 82) both died on the same day July 4 1826, 50 years to the day of the signing of the signing of the Declaration of Independence.

Patrick Cavanaugh2016-05-31T19:28:12-07:00July 4th, 2015|

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