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Posts Tagged: Bruce Lampinen

May 2018 News Clips

Mien farmers get advice for growing strawberries in Yolo County

(Woodland Daily Democrat) ANR news release, May 31

http://www.dailydemocrat.com/business/20180531/mien-farmers-get-advice-for-growing-strawberries-in-yolo-county

Abnormal Weather Takes a Toll on California Olive Crop

(Ag Net West) Brian German, May 30

The late winter freeze caused significant issues for several different commodities throughout the state and has been especially problematic for the California olive crop.  The fluctuating temperatures have created substantial concern among the industry as bloom looks to be far below normal levels.

“Overall we're a little on the pessimistic side.  The bloom, on the whole, has been pretty poor, many orchards actually have a very light, to next to no bloom at all,” said Dani Lightle, Cooperative Extension Orchard Systems Advisor for Glenn County.  “There's an orchard here or there that looks pretty good, but on the whole, it is a little bit dismal.”

http://agnetwest.com/weather-takes-toll-california-olive-crop/


How Avocados Define LA and the Secret to Making the Best Damn Avocado Toas
t

(LA Taco) Gab Chabran, May 29

…Eric Focht who is a staff research associate in the lab of Mary Lu Arpaia at UC Riverside through UC Agriculture and Natural Resources and the Department of Botany and Plant Sciences tells L.A. Taco that the recent avocado economy boom is “similar to what we see today with something like bitcoin.” He helps run a breeding program at UCR studying different avocados varieties, focusing mostly on Hass avocados but also looking at other less known versions of the popular fruit.

In short, he is working on breeding the perfect avocado that tastes great and is easier, faster, and less water-dependent to grow. This year is shaping out to be a good one for avocados, but this issue is always one to keep in mind.

Focht states that in the future, there will likely be more variety available in the mainstream marketplace. One varietal that Focht gets excited about is the Reed avocado which has now been popping up in places such as Whole Foods. It's known for its round, dinosaur egg shape and is about the size of a softball. It has a relatively large seed but the edible flesh is sometimes double or even triple that of a Haas that can make a lot more people happier per individual fruit.

http://www.lataco.com/how-avocados-define-l-a-and-the-secret-to-making-the-best-damn-avocado-toast/

Amazing graze

(Chico News & Review) Ashiah Scharaga, May 24

When drifting clouds dapple the sky and vibrant wildflowers—tickled pink buds, honey-hued petals and virent stems—awaken in the verdant fields of Table Mountain, explorers quicken their pace. They spot trickling streams and grazing cattle. Occasionally, they look straight down, turning anxious eyes to their mud-slicked heels—did they step in one of the fertile cow-pie mines littered across the landscape?

That may seem a nuisance, but it's a necessity. Tracy Schohr, a livestock and natural resources adviser for University of California Cooperative Extension, said the natural magic of the popular Butte County recreational spot is made possible because of a long-standing grazing program. “If cattle were not actually on Table Mountain Ecological Reserve,” she said, “essentially those invasive species would choke out those native plants, and they wouldn't be there.”

… In the past, grazing was misunderstood and primarily viewed as destructive, said Dave Daley, a fifth-generation Butte County cattleman and associate dean of Chico State's College of Agriculture. He credits changing perspectives to the development of grazing science, fueled by people such as Schohr and Kate Wilkin, a UC Cooperative Extension forestry, fire science and natural resource adviser for Butte, Yuba, Sutter and Nevada counties. (Schohr covers Butte, Plumas and Sierra counties.)

https://www.newsreview.com/chico/amazing-graze/content?oid=26315855

Sheep Shearing 101: Why Aspiring Shavers Flock to This California School

(KQED) Tiffany Camhi, May 23

…“We try to get the students shearing the first day because they make a lot of mistakes,” says John Harper, head of the UC Cooperative Extension Sheep Shearing School in Hopland.

Harper says if you can make the right moves with your feet, everything else falls into place.

“We're dancing instructors,” says Harper. “It's like 'Dancing With The Stars' on steroids, but with sheep.”

Around this time of year, hundreds of thousands of sheep in California need to have their wool shaved off. But Harper says there's a shortage of sheep shearers worldwide.

That's why he started the school in Hopland about 25 years ago.

Dan Macon of the California Wool Growers Association says the growing popularity of backyard flocks in California (usually just a handful of sheep) is adding to the demand for shearers, too.

“Infrastructure of the sheep industry is a key component,” says Macon. “Having people with that kind of skill and willingness to work hard is desperately needed.”

https://www.kqed.org/news/11669643/sheep-shearing-101-why-aspiring-shavers-flock-to-this-california-school

AUDIO: Hey, Salad Lovers: It's OK To Eat Romaine Lettuce Again

(NPR Morning Edition) Allison Aubrey, May 23

…After a big foodborne illness outbreak linked to baby spinach back in 2006, the leafy greens industry put in place a number of procedures to prevent contamination. "Prevention became the major focus after that outbreak," says Michele Jay-Russell, a food safety researcher at the University of California, Davis.

"They set up intensive testing protocols to monitor water quality," Jay-Russell says. The industry also agreed on standardized setbacks — or buffers — to separate growing fields from livestock operations, which can be a source of E.coli contamination. "You want a safe distance from where you're growing fresh produce and where you have concentrations of animals, like on a feedlot or dairy," she says.

https://www.npr.org/sections/thesalt/2018/05/22/613254356/cdc-gives-the-all-clear-to-start-eating-romaine-lettuce-again

Are avocados toast?

(Grist) Nathanael Johnson, May 22

…When Katherine Jarvis-Shean was a doctoral candidate researching the decline of cold winters a few years back, she thought more farmers should be freaking out. “I used to think, ‘Why aren't you guys more worried about this? It's going to be the end of the world.'”

After all, many fruit and nut trees require a good winter chill to bear fruit. But after spending a few years as an extension agent for the University of California — working directly with farmers and translating science into techniques they can apply on the land — she understands better. It comes down to this: Farmers have a ton of concerns, and the climate is just one of them.

“If you decide what to plant based on climate, but then can't make the lease payment, that's not sustainable,” Jarvis-Shean said.

https://grist.org/article/whatll-we-eat-in-2050-california-farmers-are-placing-bets/ https://www.wired.com/story/are-avocados-toast/

Lanternflies Eat Everything in Sight. The U.S. Is Looking Delicious.

(New York Times) Zach Montague, May 21

…Native to Asia, lanternflies first appeared in Pennsylvania in 2014. Despite a quarantine effort, they have also been discovered in small numbers in New York, Delaware and Virginia.

… “Most pests deposit their eggs on their host plant, or very close, so they already have food available,” said Surendra Dara, an adviser at the University of California Cooperative Extension.

“Those that have the advantage of being able to lay eggs on non-plant material obviously have a better chance of surviving and spreading,” he added.

https://www.nytimes.com/2018/05/21/science/lanternflies-pennsylvania-crops.html

Garbanzos are catching on in Yolo County

(Woodland Daily Democrat, Ag Alert) Bob Johnson, May 19

…“The largest part of our crop goes to canning, maybe 90 percent,” said Paul Gepts, UC Davis plant sciences professor and legume breeder. “California can only compete with high quality products. We have other varieties with higher yields, but the seeds are too small. The growers get a premium for larger, high quality seeds.”

Gepts developed the two newest UC garbanzo varieties, Vega and Pegasus. Both have large, attractive seeds well suited for the canning market, and both have resistance to Ascochyta blight, a fungal disease that can devastate the crop.

… “I think growers are more interested in garbanzos because it's a winter crop, and wheat prices are low,” said Rachael Long, UC Cooperative Extension farm adviser in Sacramento, Solano and Yolo counties. Long is finishing up UC's first Garbanzo Production Manual, which should be available before the end of the year.

http://www.dailydemocrat.com/article/NI/20180519/NEWS/180519787

A French Broom smack-down

(Napa Valley Register) Elaine de Man, May 18

…If we all pull together and pay attention, we can eradicate French broom and send it packing. But it's going to take many, many hands and a concerted effort. It's going to take a village.

1. U.C. Agriculture and Natural Resources, Statewide Integrated Pest Management Program, http://ipm.ucanr.edu/PMG/PESTNOTES/pn74147.html

https://napavalleyregister.com/lifestyles/home-and-garden/a-french-broom-smack-down/article_cac2f485-4881-563b-84c9-0a5029b1ee40.html

Kale, Not Jail: Urban Farming Nonprofit Helps Ex-Cons Re-enter Society

(New York Times) Patricia Leigh Brown, May 17

Even by the standards of the Bay Area, where sourcing local, organic chicken feed is seen as something of a political act, the spectacle of 30,000 fruit and nut trees being tended by formerly incarcerated orchardists is novel.

…Jennifer Sowerwine, an urban agriculture specialist for the University of California Cooperative Extension at Berkeley, said that Ms. Haleh and Mr. Raders have “shifted the conversation around food justice.”

“It's not just about food security, but the security of providing living wages,” she said. That's no mean feat in a foodie monoculture.

https://www.nytimes.com/2018/05/17/business/urban-farming-exconvicts-recidivism.html 

Tough winter weather devastates local cherry, blueberry crops

(Bakersfield Californian) John Cox, May 16

It's hard to say at this point just how much damage blueberry fields and cherry orchards sustained during the winter, said Ashraf El-kereamy, viticulture and small fruits advisor with the University of California Cooperative Extension in Kern County.

http://www.bakersfield.com/news/tough-winter-weather-devastates-local-cherry-blueberry-crops/article_3f65d3ce-5957-11e8-9fb4-6779205d0a66.html

Machines take over for people at Napa vineyard

(Capital Press) Tim Hearden, May 14

In the heart of the Napa Valley, a vineyard produces fine Cabernet Sauvignon with virtually no help from laborers.

The 40-acre “touchless vineyard” was established by Kaan Kurtural, a University of California Cooperative Extension specialist who has devoted much of his career to improving production efficiency in vineyards as labor shortages have worsened.

…When Kurtural started experimenting with vineyard automation 10 years ago, his primary goal was to save growers money in labor costs, he said. But since then, research has shown that grape quality is superior, largely because the tall canopy protects grapes from sun damage, he said. The system also uses less water than others, he said.

http://www.capitalpress.com/SpecialSections/Orchard/20180514/machines-take-over-for-people-at-napa-vineyard

Dozens of strawberry growers gather in Santa Maria to learn latest industry advancements

(KSBY Staff) May 9

More than 100 farmers and growers took park in a meeting teaching them on the best way to grow a healthy strawberry.

The University of California put on the annual event which was free to the public.

Growers discussed improvements handling weeds, disease, and insects.

The Santa Maria Valley is the second largest strawberry growing area in California after the Salinas Valley.

The crop means a lot to people in Santa Maria.

"We've got a number of challenges to the California strawberry industry and we're doing are best to work together," said Steven Fennimore of University of California Cooperative Extension Agriculture and Natural Resources. "I'm optimistic that we'll find some satisfactory solutions."

Growers talked about all kinds of different ways to boost their crop including ways of using images from aircraft to detect stress in plants.

http://www.ksby.com/story/38155207/dozens-of-strawberry-growers-gather-in-santa-maria-to-learn-latest-industry-advancements

Pesticide Use on California Farms at Near-Record Levels

(Fair Warning) Paul Feldman, May 9

…Some experts say long-term changes in the mix of items farmers produce in California, including increases in almonds and other high value crops, give the agriculture industry the incentive to use more pesticides. Such crops present “a larger economic risk if pests are not controlled,”said Brad Hanson, a weed specialist at the University of California, Davis, plant science department.

Jim Farrar, director of the University of California's statewide integrated pest management program, added that more pesticides are needed when “you move from something like alfalfa and sorghum for dairies, where cosmetic injury isn't a problem … to something like oranges where if there's a blemish on the rind you get downgraded even if the orange is perfectly healthy.”

https://www.fairwarning.org/2018/05/pesticides/

Cherry growers expect lighter crop yields

(Ag Alert) Ching Lee, May 9,

…Kari Arnold, a University of California Cooperative Extension farm advisor in Stanislaus County, said she's careful not to paint the 2018 cherry season as a disaster year "because it's really not." The crop may not be as robust, she said, but this was somewhat expected, because last year's crop was so big.

What wasn't expected, she said, was the freeze in the spring, which "did cause some damage to flowers." But the damage varied depending on the location of the orchard and whether growers were able to apply frost protection, she added.

"It's still going to be a good crop," she said. "It may not be the same as last year, but they're going to be good cherries. They're probably going to sell at a higher price because there'll be less of them."

She said she's concerned that word of it being a light crop may scare away field help, adding that "it's hard enough to get field labor in the first place anymore, because labor is becoming more and more difficult to come by and more difficult to keep."

http://www.agalert.com/story/?id=11854

Peak Avocado Is Yet to Come

(The Atlantic) Cynthia Graber, Nicola Twilley, May 9

…Its partners in evolution—the giant, elephant-like gomphotheres and three-ton ground sloths that dined on its fruit in return for transporting and then pooping out its giant seed—went extinct soon after the first bipedal apes arrived in the region. Rodents, jaguars, and eventually humans stepped in as dispersal mechanisms, albeit significantly less effective ones. The flourishing avocado forests that carpeted much of Mesoamerica dwindled and died out. And, as Mary Lu Arpaia, who runs the avocado breeding program at the University of California at Riverside, explained, the avocado became a backyard fruit, enjoyed by first the indigenous peoples and later the conquistadors, but rarely cultivated intensively—until recent decades.

https://www.theatlantic.com/science/archive/2018/05/peak-avocado-is-yet-to-come/559883/ 

Climate change ruining California's environment, report warns
(SF Chronicle) Peter Fimrite, May 8, 2018 
“If I were going to look across North America, ground zero for climate change is the Arctic. It is just changing really, really rapidly,” said Steven Beissinger, professor of conservation biology at UC Berkeley. “But California is an important laboratory to understand the effects of climate change on biodiversity.”

https://www.sfchronicle.com/news/article/Climate-change-ruining-California-s-12899272.php

More illnesses with later onset dates linked to romaine outbreak

(The Packer) Ashley Nickle, May 8, 2018

Richard Smith, a University of California Cooperative Extension advisor based in Salinas, also said the outbreak is hurting sales.

“It's having an effect,” Smith said May 7. “This is the problem — lettuce is pretty expensive to grow, and you've got to cover your costs. You can lose money, at this point the bigger growers can afford to lose for a period of time, but then they've got to make it up, and it just makes it hard. We're not sure how the year's going to go.

“I guess the good news is that the consumers are being sophisticated enough to be focusing on the romaine (versus all lettuce) ... The reality is I guess the FDA doesn't want to clear romaine yet because they think that the lettuce from Yuma might have a 21-day shelf life, so until the FDA clears it and then that news gets clearly articulated, I think it's going to be a damper.

https://www.thepacker.com/article/more-illnesses-later-onset-dates-linked-romaine-outbreak

AEI economists say farmers have ‘beef' with Trump

(Hagstrom Report) May 7, 2018

…Daniel Sumner of the University of California at Davis also told The Hagstrom Report that farmers hurt by the administration's trade policies have "a beef" with Trump.

Sumner said that even though the tariffs on Chinese steel and aluminum have not yet gone into effect, California farmers including wine and almond producers are already worried. "Even if the tariffs don't happen, the rhetoric has effects," he said.

Sumner also said that Mexican buyers of U.S. dairy products — "reasonable business people in Mexico" — began months ago to contact New Zealand dairy producers about becoming a supplier because the Mexicans are worried about the impact of the North American Free Trade Agreement renegotiation.

https://www.thefencepost.com/news/aei-economists-say-farmers-have-beef-with-trump/

City Visions: Tech and the future of smart, sustainable farming

KALW, May 7, 2018

Host Ethan Elkind and guests explore the impact of new technologies on our agricultural industry.

What are the biggest challenges to our current food production system?  And, how are Bay Area innovators meeting these challenges while promoting sustainability, efficiency and profitability?

Guests:

- Charles Baron, co-founder and vice-president of product at Farmer's Business Network.

- Jaleh Daie, Ph.D., founder and chair of AgriFood Tech and partner at Aurora Equity.

- Glenda Humiston, Ph.D., vice president of University of California's Division of Agriculture and Natural Resources.

http://kalw.org/post/city-visions-tech-and-future-smart-sustainable-farming#stream/0

Workshop planned on Napa fire prevention and best practices

(Napa Valley Register), May 7, 2018

A one-day seminar is planned for May 30 to look at the Napa ecosystem's recovery after the October wildfires and what policies are needed to reduce future fire impacts.

The workshop will be Wednesday, May 30, from 8 a.m. to 3:45 p.m. at Napa Valley College's Performing Arts Center, 2277 Napa Vallejo Highway.

Cost is $15 per person, with registration required at http://ucanr.edu/napafireworkshop2018. For more information, call 530-666-8143. 

The program is sponsored by UC Cooperative Extension, Napa County Farm Bureau and the U.S. Department of Agriculture's Natural Resources Conservation Service.

https://napavalleyregister.com/news/local/workshop-planned-on-napa-fire-prevention-and-best-practices/article_571e3754-8904-580e-b620-4fe3fd0e4e91.html

Egg prices plunge as supplies rebound

(Capital Press) Tim Hearden, May 4

 Commercial egg prices in California are plummeting, and a slow global economy combined with a rebounding chicken flock after last year's devastating avian flu outbreak are among the contributing factors.

…At first, Midwestern egg producers that didn't want to retrofit their barns simply avoided California. Those that did want to market to California found confusion in what actually constituted a Proposition 2-compliant cage, said Joy Mench, a University of California-Davis animal science professor.

“(T)he wording of Prop. 2 does not allow it to be regulated, so there is no official definition of what it means,” Mench said in an email. “That will have to be decided in the courts, either because there is a lawsuit or because someone is prosecuted.”

In enforcing the initiative, the CDFA uses the federal Shell Egg Food Safety rule, whose space requirement is larger than the United Egg Producer guidelines that most of the other states use, noted Maurice Pitesky, a poultry specialist at the UC-Davis School of Veterinary Medicine.

http://www.capitalpress.com/Business/20160504/egg-prices-plunge-as-supplies-rebound  

Farming takes center stage at Yolo County Fairgrounds

Woodland Daily Democrat) Cutter Hicks, May 4

Field trips to the fairgrounds led to a farming experience for students as the Yolo County 4-H and Farm Bureau hosted its 10th annual Farm Connection Day to kick off the Spring Show this weekend.

The four-hour event Friday featured more than 100 agricultural displays and hands-on activities for kids of all ages as nearly 2,500 visitors walked through the gates.

Farm Connection Day was open to the public and more than 200 4-H students teamed up to host the event — with a little help from adult volunteers. Their focus was to teach students of Yolo County the aspects of the organization before judging shows later that day.

DeAnn Tenhunfeld, a Farm Connection Day organizer, said that the attendance was the largest seen since she founded it in 2008.

http://www.dailydemocrat.com/business/20180504/farming-takes-center-stage-at-yolo-county-fairgrounds

Frost damage varied for California nut trees

(Farm Press) Robyn Rominger, May 2, 2018
Some almond growers experienced frost damage from recent freezing conditions, say University of California experts.

“There's really a lot of damage,” says Katherine Jarvis-Shean, UC Cooperative Extension orchard systems advisor for Sacramento, Solano, and Yolo counties. “The earlier varieties really took a hit. Some trees even dropped their nuts due to frost damage. It's pretty bad in some orchards.”

… Bruce Lampinen, UCCE almond and walnut specialist, measured temperatures in an almond trial at Davis, and notes that “Feb. 20 and 24 were the coldest days. It was very problematic because that's when the trees were in full bloom.” At full bloom, temperatures below 28 degrees F. can cause crop loss.

…Phoebe Gordon, UCCE orchard systems advisor for Madera and Merced counties, says, “From what I've seen and heard, the damage has been variable. Some orchards weren't hit that hard, and others were hit very hard. I think it depended a lot on micro-climate and what stage the trees were in. They become more susceptible to frost damage as they transition from dormant to full bloom, and to nut set. I don't think we'll really know until ‘June drop' is finished what the final load is.” 

Dani Lightle, UCCE orchard systems advisor in Glenn and Butte counties, says, “Almonds were right in the middle of full bloom when the frost happened. Most of the orchards in my area seem to have escaped. We didn't seem to cross the threshold to where there was heavy damage. Of course, there are exceptions, but by and large we came out better in the end than we thought we would.”

http://www.westernfarmpress.com/tree-nuts/frost-damage-varied-california-nut-trees

New weapon in fight against walnut blight

(Farm Press) Robyn Rominger, May 2, 2018
Walnut growers have a new tool to help manage blight disease in their orchards — Kasumin 2L, manufactured by Arysta LifeScience, is the trade name for kasugamycin, and is available as part of a strategy to control the disease.

The new bactericide was discussed at a recent University of California Cooperative Extension breakfast meeting at Yuba City. “It's great to have another chemistry in the rotational loop for blight management in walnuts,” says Emily Symmes, UCCE integrated pest management advisor.

http://www.westernfarmpress.com/tree-nuts/new-weapon-fight-against-walnut-blight

May News Clips

City Visions: Tech and the future of smart, sustainable farming

(KALW), May 7, 2018

Host Ethan Elkind and guests explore the impact of new technologies on our agricultural industry.

What are the biggest challenges to our current food production system?  And, how are Bay Area innovators meeting these challenges while promoting sustainability, efficiency and profitability?

Guests:

- Charles Baron, co-founder and vice-president of product at Farmer's Business Network.

- Jaleh Daie, Ph.D., founder and chair of AgriFood Tech and partner at Aurora Equity.

- Glenda Humiston, Ph.D., vice president of University of California's Division of Agriculture and Natural Resources.

http://kalw.org/post/city-visions-tech-and-future-smart-sustainable-farming#stream/0

Workshop planned on Napa fire prevention and best practices

(Napa Valley Register), May 7, 2018

A one-day seminar is planned for May 30 to look at the Napa ecosystem's recovery after the October wildfires and what policies are needed to reduce future fire impacts.

The workshop will be Wednesday, May 30, from 8 a.m. to 3:45 p.m. at Napa Valley College's Performing Arts Center, 2277 Napa Vallejo Highway.

Cost is $15 per person, with registration required at http://ucanr.edu/napafireworkshop2018. For more information, call 530-666-8143. 

The program is sponsored by UC Cooperative Extension, Napa County Farm Bureau and the U.S. Department of Agriculture's Natural Resources Conservation Service.

https://napavalleyregister.com/news/local/workshop-planned-on-napa-fire-prevention-and-best-practices/article_571e3754-8904-580e-b620-4fe3fd0e4e91.html

Farming takes center stage at Yolo County Fairgrounds

(Woodland Daily Democrat) Cutter Hicks, May 4

Field trips to the fairgrounds led to a farming experience for students as the Yolo County 4-H and Farm Bureau hosted its 10th annual Farm Connection Day to kick off the Spring Show this weekend.

The four-hour event Friday featured more than 100 agricultural displays and hands-on activities for kids of all ages as nearly 2,500 visitors walked through the gates.

Farm Connection Day was open to the public and more than 200 4-H students teamed up to host the event — with a little help from adult volunteers. Their focus was to teach students of Yolo County the aspects of the organization before judging shows later that day.

DeAnn Tenhunfeld, a Farm Connection Day organizer, said that the attendance was the largest seen since she founded it in 2008.

http://www.dailydemocrat.com/business/20180504/farming-takes-center-stage-at-yolo-county-fairgrounds 

Frost damage varied for California nut trees

(Farm Press) Robyn Rominger, May 2, 2018
Some almond growers experienced frost damage from recent freezing conditions, say University of California experts.

“There's really a lot of damage,” says Katherine Jarvis-Shean, UC Cooperative Extension orchard systems advisor for Sacramento, Solano, and Yolo counties. “The earlier varieties really took a hit. Some trees even dropped their nuts due to frost damage. It's pretty bad in some orchards.”

… Bruce Lampinen, UCCE almond and walnut specialist, measured temperatures in an almond trial at Davis, and notes that “Feb. 20 and 24 were the coldest days. It was very problematic because that's when the trees were in full bloom.” At full bloom, temperatures below 28 degrees F. can cause crop loss.

…Phoebe Gordon, UCCE orchard systems advisor for Madera and Merced counties, says, “From what I've seen and heard, the damage has been variable. Some orchards weren't hit that hard, and others were hit very hard. I think it depended a lot on micro-climate and what stage the trees were in. They become more susceptible to frost damage as they transition from dormant to full bloom, and to nut set. I don't think we'll really know until ‘June drop' is finished what the final load is.” 

Dani Lightle, UCCE orchard systems advisor in Glenn and Butte counties, says, “Almonds were right in the middle of full bloom when the frost happened. Most of the orchards in my area seem to have escaped. We didn't seem to cross the threshold to where there was heavy damage. Of course, there are exceptions, but by and large we came out better in the end than we thought we would.”

http://www.westernfarmpress.com/tree-nuts/frost-damage-varied-california-nut-treesKatherine Jarvis-Shean, 

New weapon in fight against walnut blight

(Farm Press) Robyn Rominger, May 2, 2018

Walnut growers have a new tool to help manage blight disease in their orchards — Kasumin 2L, manufactured by Arysta LifeScience, is the trade name for kasugamycin, and is available as part of a strategy to control the disease.

The new bactericide was discussed at a recent University of California Cooperative Extension breakfast meeting at Yuba City. “It's great to have another chemistry in the rotational loop for blight management in walnuts,” says Emily Symmes, UCCE integrated pest management advisor.

http://www.westernfarmpress.com/tree-nuts/new-weapon-fight-against-walnut-blight

Posted on Tuesday, May 8, 2018 at 12:35 PM

UC ANR announces recipients of first two $1 million endowed chairs

Craig Kallsen, left, and Bruce Lampinen are recipients of the first two endowed chairs in UC Cooperative Extension.
Two accomplished UC Agriculture and Natural Resources scientists have the honor of being the first endowed chairs in UC Cooperative Extension.

The UCCE citrus and pistachio crops advisor in Kern County, Craig Kallsen, is the UC Cooperative Extension Presidential Chair for Tree Nut Genetics, and UCCE integrated orchard management specialist Bruce Lampinen, based at UC Davis, is the UC Cooperative Extension Presidential Chair for Tree Nut Soil Science and Plant Water Relations. The endowed chairs will give the two scientists a dedicated source of funding for five years, when the chairs are reopened for review.

UC ANR established the two $1 million endowments for the endowed chairs last year. Half the funding was provided by UC President Janet Napolitano; the other half was donated by the California Pistachio Research Board. Establishment of the endowed chairs was announced last year by UC ANR vice president Glenda Humiston.

“I'm pleased that we have identified two exceptional research programs to support with the first endowed chairs in the more than 100-year history of UC Cooperative Extension,” Humiston said. “I feel certain Craig and Bruce will make significant advances in pistachio production systems under California conditions.”

Pistachio breeding program

Kallsen said the endowment comes at a particularly opportune time for the UC pistachio breeding research program. In cooperation with UC Davis pomology researcher Dan Parfitt, Kallsen has been breeding pistachios as part of a variety selection program using conventional methods - manually crossing and then growing trees to determine whether they have beneficial characteristics.

“Breeding new varieties this way takes a while, especially in pistachios,” Kallsen said. “They don't bloom for four or five years. With some trials we are just now at the stage where it gets interesting. The funding will be helpful for evaluating the new progeny.”

Kallsen is looking for pistachio varieties that show novel nut, tree growth and yield characteristics, and for varieties that produce a high yield even under low-chill conditions.

“The climate appears to be warming,” Kallsen said. “That poses a problem for pistachios, because our current cultivars have a significant chilling requirement that has not always been met when we don't have cold, foggy winters.”

Kallsen plans to establish a trial pistachio orchard at the UC Riverside Coachella Valley Agricultural Research Station, where winter weather rarely dips to sufficient chill levels, to see which varieties produce acceptable crops under the warmer conditions.

Another key objective of the UC breeding program is identifying pistachio cultivars that mature at different times. At the moment, 90 percent of California pistachios are the Kerman variety. They all mature at the same time, putting pressure on harvesting, transportation, processing and storage resources.

“Ten years ago, UC introduced the Golden Hills variety, which matures about two weeks earlier. It now represents 5 or 10 percent of the state's crop,” Kallsen said. “We're looking closely at another potential cultivar that matures 10 days before Golden Hills.”

Pistachio research at UC Davis  

Lampinen has devoted most of his career to almond and walnut research, but has worked on pistachios in collaboration with other UCCE specialists and advisors since 2009, focusing mainly on canopy light interception and salinity and their impacts on pistachio yield and water use.

Lampinen said his current work on almond and walnut water use as related to canopy size will be expanded to pistachio with the funding from the endowment.

“Some preliminary data on this is currently being gathered, but there is a need to expand this work to a wider range of orchard ages and planting configurations,” Lampinen said. “It will be very useful to have the ongoing support from an endowment.”

Lampinen's work in almonds and walnuts will also inform new pistachio research approaches. For example, Lampinen developed a no-pruning system for establishing new walnut orchards, and will study whether a similar approach in pistachio would make sense. For decades, California farmers believed that pruning young walnut trees was critical to healthy tree development. Lampinen observed unpruned walnut orchards in France, and “they looked perfectly fine,” he said.

Lampinen's research showed that pruning in the early years of tree development reduced water use efficiency and decreased walnut yields. By not pruning young trees, farmers could cut back significantly on labor costs and eliminate the need to dispose of the vegetation cut off the tree while using water more efficiently. 

The no-pruning approach is now widely accepted in almonds and walnuts. With funding from the five-year endowment, he plans to compare the impacts of the alternative pruning systems on newly established pistachio orchards.

In addition, Lampinen said he plans to consult with pistachio industry leaders, growers and farm advisors to develop an effective research program on pistachio soil and water relations.

Posted on Friday, July 1, 2016 at 8:39 AM

Agriculture research not immune to drought

Ag research at the West Side Research and Extension Center and other sites has been impacted by the California drought.
Even as farmers across California struggle with the third year of drought, so do University of California agriculture researchers, reported Todd Fitchette in Western Farm Press.

Fitchette opened his story with the plight of ag research at the UC West Side Research and Extension Center near Five Points. Many of the farmers in the area will receive no surface water allocation this year; neither will the research center.

The facility can pull water from a deep well, but it is not enough nor is the water quality adequate for all the farming operations, said Bob Hutmacher, UC Cooperative Extension specialist and center director. He said scientists at the station must cut back their water use this year by 25 percent.

“I can speak for myself: I have about a half dozen cotton projects and a sorghum project, along with a sesame project and a couple of other things I'm working on,” he said. “I'm downsizing most of them to the greatest degree I can and I'm going to cancel one of them.”

One trial that will not go forward at West Side is an almond variety trial. However, UC Cooperative Extension advisors in other areas are working with the Almond Board to keep the research underway. UCCE advisors Joe Connell will oversee the Chico State almond variety trial, Roger Duncan the Salida trial, and Gurreet Brar the Madera County trial.

The Western Farm Press Story included drought-related ag research news from myriad UCCE academics:

  • Duncan said his work with fruit and nut crops has not been negatively impacted by the drought.

  • David Doll, UCCE advisor in Merced County, said the increased reliance on groundwater has ruined several orchard nitrogen trials because the groundwater in northern Merced has high rates of nitrate nitrogen, which acts as a nitrogen fertilizer.

  • Dan Munk, UCCE advisor in Fresno County, said he will continue putting off alfalfa trials at the WSREC “indefinitely until a more secure water supply is available.”

  • Scott Stoddard, UCCE advisor in Merced County, reports positive and negative impacts from the drought. He won't do tomato research at West Side REC, but will continue work in sweet potatoes to determine how little water they need to produce a reasonable crop.

  • Chris Greer, UCCE advisor in Sutter, Yuba, Colusa and Glenn counties, said some rangeland trials were impacted by the lack of rain.

  • Bruce Lampinen, UCCE specialist in the Department of Plant Sciences at UC Davis, has seen his orchard trials in Arbuckle severely impacted by the drought.
Posted on Friday, April 18, 2014 at 10:51 AM

Almonds become California's second-most valuable commodity

With help from UCCE, the value of almonds in 2011 surpassed the value of grapes.
When California publishes its crop report in November, there will be a significant change in the ranking order of the state’s top agricultural commodities. In 2011, for the first time ever, the value of the California almond crop surpassed the state’s iconic grape industry to move into second place, behind dairy.

California almonds are on a roll. In the last 20 years, scientific discovery and grower ingenuity have nearly doubled almond per-acre productivity. A good yield in the 1980s was 1,400 pounds per acre. The average yield for 2011 was 2,670 pounds of shelled almonds per acre.

Forty years ago, California farmers produced less than 100 million pounds of almonds on about 200,000 acres of almond orchards. Mechanization, improved irrigation efficiency, advances in insect and disease management, pruning research and fertilization studies have fueled explosive growth in the industry. Farmers in California’s Central Valley now tend 760,000 acres of almond trees, producing about 2 billion pounds of shelled nuts a year.  The crop, which represents 100 percent of U.S. almond production and 75 to 80 percent of world production, was valued in 2011 at $3.87 billion, surpassing table, wine and raisin grapes, which were valued at $3.86 billion.

“Even with this record production, we have more demand than we have supply,” said Bob Curtis of the Almond Board. “The driver behind that is nutrition studies that show almonds are a healthy food and snack.”

A tremendous amount of UC research is behind the California almond success story, said Bruce Lampinen, UC Cooperative Extension specialist in the Department of Plant Sciences at UC Davis, an expert in almond canopy management.

“Higher density plantings of almonds and a trend towards less pruning, and improved water management have led to much higher yields,” Lampinen said.

Many almond growers have replaced flood irrigation with micro-sprinkler or drip irrigation, said Larry Schwankl, UC Cooperative Extension specialist in the Department of Land, Air and Water Resources at UC Davis. These irrigation systems increase the precision of water and fertilizer application. Over the years, UC Cooperative Extension advisors and specialists established demonstrations of micro-sprinkler and drip systems in many parts of the Central Valley and reached out to farmers to show how they could be managed to optimize production.

“Twenty years ago, we simply guessed at the amount of water that the trees needed and we applied it on a calendar basis,” said Joe MacIlvaine, president of Paramount Farming Company in Kern County, one of the state’s largest growers of almonds, pistachios and pomegranates.  “Today, we are delivering water and nutrients directly to the root zones when they are needed.”

Two decades ago, a granular form of nitrogen fertilizer was generally applied to almond orchards in the fall to allow winter rain and irrigation to move it into the soil for use by the trees in spring and early summer. Nitrogen use efficiency was believed to be about 40 percent. Now, nitrogen fertilizer is applied through the irrigation system during the growing season, when the tree needs it.

“Today, our nitrogen use efficiency can be as high as 85 percent,” said Blake Sanden, UCCE advisor in Kern County, an irrigation expert. He and Patrick Brown, professor in the Department of Plant Sciences at UC Davis, have conducted nitrogen trials in almonds with Paramount Farming.

“When you increase the conversion of applied nitrogen fertilizer to higher crop yield, there is significantly less potential for nitrogen to leach below the rootzone and contaminate groundwater,” Sanden said. “But each field is unique and requires site-specific management to achieve these high levels of efficiency.”

Another area where UC research has led to significant crop yield growth is in canopy management and tree spacing. Research by Mario Viveros, UCCE advisor emeritus in Kern County, and other scientists showed that a tendency among growers to over prune was taking a toll at harvest time.

“A lot of farmers who are now growing almonds had experience with fresh fruits, where you do need to prune to get light on the fruit for good color. In almonds more canopy generally means more yield,” Lampinen said. “Today, most almond growers only prune when branches are growing in the way of tractors or other equipment.”

UC research also found that orchards planted with traditional wide spacing between the trees weren’t making the most efficient use of sunlight on the farms. Older orchards had 60 to 70 trees per acre. Today, almond orchards are planted at an average density of about 110 trees per acre based on results of UC research.

However, studies have also shown that crowding still more trees into orchards triggers diminishing returns. In almond production, the nuts are shaken from the trees to dry on the ground before they are harvested.

“If the orchard floor becomes too shaded by trees planted too densely, the orchard floor temperature and humidity become optimal for growth of pathogens that could become a food safety problem,” Lampinen said. “You want enough sunlight to hit the orchard floor to reduce potential pathogens, like salmonella.”

MacIlvaine acknowledged the role of UC Cooperative Extension in helping the almond industry achieve the production milestone in 2011.

“The University of California has been a wonderful partner in improving our farming practices,” he said. “The whole system is not only more efficient, but more sustainable at the same time.”

Hear more of MacIlvaine's comments in the video posted below:

Posted on Thursday, October 18, 2012 at 9:28 AM

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