UC ANR NEWS
Avocados, now riding a tide of popularity appearing on toast in cookbooks and trendy restaurant menus, came late to commercial agriculture, reported Cynthia Graber and Nicola Twilley in Gastropod, a podcast that looks at food through the lens of science and history.
The 48-minute story features Mary Lu Arpaia, UC Cooperative Extension specialist based at the UC Kearney Agricultural Research and Extension Center in Parlier. Arpaia runs the UC avocado breeding program and is now studying varieties that will do well in the San Joaquin Valley climate.
On Gastropod, Arpaia outlined avocados' humble beginnings in their native Mexico and Central America.
"It was grown as a dooryard crop tree and valued for thousands of years," Arpaia said. "There was no intensive production of avocado until the industries in California and Florida started about 100 years ago."
The most popular variety is the Hass, which is derived from a seed planted in La Habra Heights by a hobby horticulturist, Rudolph Hass, a U.S. Postal Service worker.
"The thing against it (the Hass variety) was it turned black when ripe. It's a great tree with great fruit, but it's black," Arpaia said. "So it just shows how things have changed."
Consumers now embrace Hass' black, bumpy coat.
Graber and Twilley spent time on the show describing the "avocado toast" sensation around the globe. The duo quoted an article in Vogue that says 3 million new pictures of avocado toast are uploaded to Instagram every day.
The future for avocados looks bright. Already China imports 32,000 tons of avocados annually, but the market potential is much greater.
"I can't even imagine how big avocado will get in China," said one of the Gastropod hosts.
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?
- 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.
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.
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.
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.”
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.
This geneticist is creating gene-edited animals for our plates
(Ozy.com) Marissa Fessenden, April 29
Animal geneticist Alison Van Eenennaam has six calves that are rather unusual. Most people might not pick up on what's odd, but close inspection, and knowledge of bovine genetics, reveals that none of the calves have horns despite being a mix of breeds that typically have them. Even more surprising? The calves' hornless state wasn't bred into them — Van Eenennaam and her colleagues edited their genes using the new CRISPR technology.
Board approves mural honoring Orloff, Siskiyou's heritage
(Siskiyou Daily) Danielle Jester, April 19
A mural that will honor the late Steve Orloff, former Siskiyou County farm advisor, and recognize agriculture in the county was approved Tuesday by the Siskiyou County Board of Supervisors.
Rob Wilson, who is the director and farm advisor at the Intermountain Research Center Extension in Tulelake and is serving as the the interim acting county director for Siskiyou County Cooperative Extension, noted that the mural presents a "great opportunity to honor agriculture in Siskiyou County and to try to honor former Farm Advisor Steve Orloff."
Letter: Livestock impact on environment overstated in 'Meatless Monday' column
(Lafayette IN Journal & Courier) Frank Mitloehner
I am responding to the recent contribution titled, “Meatless Mondays: Consequences for our dining habits."
What a nutritionist wants you to know about pesticides and produce
(NBC News) Samantha Cassetty, April 15
This week, the Environmental Working Group (EWG) released an update to their annual Dirty Dozen and Clean 15 lists. These lists reveal produce with both the highest and lowest levels of pesticide residue, according to their methodology. The report looks more or less the same as last year's guide, with strawberries claiming the unfortunate number one spot, edging out spinach and nectarines.
… But let's get one thing clear: Organic produce is not pesticide-free. There are pesticides used in organic farming, but they're derived from natural substances rather than synthetic ones, And as Carl Winter, Ph.D., Extension Food Toxicologist and Vice Chair, Food Science and Technology at University of California, Davis puts it, in either case, “the dose makes the poison.”
OPINION: Should California Winemakers Be Worried About China's Tariffs?
(NPR) Julian M. Alston, director, Mondavi Institute for Wine Economics, UC Davis; Daniel Sumner, Olena Sambucci, Agricultural and Resource Economics, UC Davis
California's vintners and grape growers are among the latest potential victims in the escalating trade spat between the U.S. and China.
Responding to U.S. plans to impose import duties on goods from China, the Chinese Ministry of Commerce reciprocated by introducing new tariffs on 128 U.S. products, including an additional 15 percent import tariff on wine.
"We are open for business" is message from wine committee joint meeting
(Sonoma West) Heather Bailey, April 9
At the April 6 Joint Information Hearing of the California State Senate Select Committee on California's Wine Industry and the California Assembly Select Committee on Wine the overarching theme of the meeting was: “We are open for business.” While there are impacts from the October fires, the message went, stories of our demise are greatly exaggerated. So come on down for your corporate event, wine tasting weekend, wedding or bachelorette party.
…The final panel on Water Supply featured Glenn McGourty, Viticulture and Plant Science Advisor in Mendocino County for the UC Cooperative Extension, Dr. Michael Anderson, California State Climatologist at the California Department of Water Resources, Eric Larson, Environmental Program Manager at the California Department of Fish and Wildlife, and Katie Jackson, Vice President for External Affairs and Sustainability at Jackson Family Wines.
McGourty discussed some of the scientific advances being brought to bear for assisting the wine industry with its water usage, including surface renewal technology, which will tell a grower exactly how much and when to irrigate and could save 50 to 100,000 gallons of water per acre, using crop cover on the soils, which allows soil in one acre to hold an additional 38,000 more gallons of water, and various ways to control frost in vineyards so that irrigation isn't needed to prevent frost.
County program to cull dead trees continues
(The Union Democrat) Alex Maclean, April 5
Scientists doing field-based research saw a decline in the death rate of ponderosa pines from western bark beetle infestation last year, but Tuolumne County isn't slowing down its effort to help landowners affected by the drought-induced epidemic.
… Jodi Axelson, a Cooperative Extension specialist in forest health at University of California, Berkeley, said the slowing of mortality seen over the past year should give counties like Tuolumne an opportunity to catch up on removing dead trees from private property.
Axelson is part of a team of scientists collecting data on tree mortality that also includes John Battles, a forest ecology professor at UC Berkeley, and Susie Kocher, a natural resources advisor for UC Cooperative Extension, Central Sierra.
Land suitable for certain California crops expected to shrink
(Agri-Pulse) Steve Davies, April 5
California growers should start to look seriously at how to adapt to a changing climate, which could shrink the land available for many of the state's most popular crops, a new study has found.
“Reduced numbers of chill hours, increased pest pressure, increased water demand and water-induced stress, as well as variable and unreliable water supply, are examples of factors that are projected to adversely impact the yield and quality of various crops grown in California,” says the paper, published in the journal Agronomy. Chill hours are traditionally defined as those periods where the temperature is below 45 degrees Fahrenheit.
"Understanding climate change and how it is impacting agriculture can help us develop relevant adaptation strategies and enhance agricultural resilience to climate risks," said lead author Tapan Pathak, a cooperative extension specialist at the University of California Division of Agriculture and Natural Resources.
Search for wine ‘smoke taint' solutions intensifies after Northern California wildfires
(North Bay Business Journal) Jeff Quackenbush, April 4
The international pursuit of ways to predict how much smoke from a wildfire will end up in finished wine and what to do about it got a boost when the dark clouds of particles pumped out by the massive North Bay fires in October descended on the University of California, Davis, experimental vineyard in Napa Valley.
“The moment the smoke started, my phone started ringing off the hook,” said Anita Olberholster, Ph.D., a specialist in the science of winemaking for University of California Cooperative Extension. When the fires erupted Oct. 8, most of the North Coast winegrape crop had been picked, but some late-ripening fruit, particularly cabernet sauvignon was still on the vine, in the home stretch of the 2017 harvest. “It quickly realized how thin the data is I need to base recommendations on.”
For these Central Coast students, spring break is a chance to hone their culinary skills
KSBY, April 4
Some local fifth and sixth graders are spending their spring break in the kitchen.
The students are part of the 4-H Student Nutrition Advisory Council clubs at five schools in Santa Maria and Oceano.
During the third annual "Culinary Academy," they're learning food safety habits, how to safely handle knives, baking techniques, and stovetop skills. Specifically, they're cooking up healthy blueberry muffins, sushi, and an egg omelet.
"It's really an opportunity for the kids to learn some basic food skills along with nutrition and some fun thrown in there, too," said Janelle Hansen, 4-H program supervisor for Santa Barbara County.
Culinary Academy teaches Santa Maria spring breakers how to cook
Santa Maria Times, April 4
Fifth and sixth grade youth leaders from five school-based 4-H Student Nutrition Advisory Council clubs (SNAC) worked to develop their culinary skills over Spring Break.
Over 20 SNAC Youth leaders participated in the 3rd annual Culinary Academy, at Liberty Elementary School in Santa Maria. This year youth worked on recipes to enhance their knife and stove top skills, food safety habits, and baking techniques.
UC Climate Video Questioned by UC Researchers
(UCD Aggie) David Madey, April 4
According to a video called “The diet that helps fight climate change” released by the Office of the UC President, everyone — including the 238,000 students across the UC system — can help combat climate change on their own. But not everyone is celebrating.
… “[The video] recommended for the global population a diet that only the top one percent can afford,” said Dr. Frank Mitloehner, a professor and air quality specialist at UC Davis. “We could not even satisfy a Mediterranean diet for the entire United States population today.”
… Dr. Glenda Humiston, the vice president for the UC Division of Agriculture and Natural Resources, wrote in a public letter to UC colleagues, “[The video] states that if the world was to reduce its meat consumption, that decision alone could offset the emissions from a billion cars on the road by 2050. For the U.S., however, this contention is misleading, as the impact would be considerably smaller.”
Dr. Alison Van Eenennaam, an expert featured in “Food Evolution” from UC Davis, also claims that the Climate Lab video is misleading. With a combined 2.1 million views on YouTube and Facebook to date, Van Eenennaam expressed concern that the public is led to believe that diet is twice as important as transportation effects –– which is not true at all, she said.
“It's not simple, and that video made it simple,” Van Eenennaam said.
Future Of Farming Blossoming At UC Davis
Researchers are looking for ways to make farming a little smarter with robots and drones that could one day revolutionize the way our food is grown.
Engineers at UC Davis are trying to be on the forefront of future farming technology.
“Smart technologies are going to allow us to be more efficient,” said professor David Slaughter.
They're inventing things like a high-tech hoe that uses ultraviolet lights and cameras along with specially treated plants to trim away weeds. Computer-controlled red cutting blades open up just in time to let plant stems pass by unharmed.
Drought put UC's water-saving strategies into practice
(Western Farm Press) Tim Hearden
The historic drought from 2012 to 2016 forced almond growers to put into practice water-conservation strategies they'd been taught by University of California Cooperative Extension crop advisors — so say a farmer and an advisor in a newly released video on water management.
Raj Meena of the Gustine, Calif.-based Meena Farms, says tools such as the pressure chamber, which measures water stress in trees, and soil moisture monitoring helped the operation survive drastic cutbacks in water. “I would say our water management improved considerably because it had to,” he says in the video, part of series on drought tips from the UC California Institute for Water Resources. “If we hadn't done that, we wouldn't still be farming. When you're so regulated in the water that you have, you have to allocate it very carefully.”
UC program aids in citrus disease fight
(AgAlert) Christine Souza
At war with the Asian citrus psyllid since it was found in San Diego County in 2008, California citrus growers and packers have had unprecedented success in slowing the spread of the tree-killing bacteria the psyllid can carry. People in the citrus business say part of that success relates to the testing and distribution of clean citrus plant material through the University of California, Riverside.
The Citrus Clonal Protection Program at UC Riverside tests clonal material to ensure that citrus varieties introduced into California remain free of pathogens.
Joel Nelsen, president of California Citrus Mutual, said he believes work such as that done by the program has helped defend California citrus from the tree-killing bacterial disease huanglongbing or HLB, also called citrus greening.
California fights costly battle against invasive species
(Agri-Pulse) Tyler Ash
Every year, California acquires on average nine new invasive species, including exotic insects, spiders, mollusks and even South American mammals. Three of those invaders usually try and settle down, start a large family and stake a claim on some of the Golden State's endless buffet of agricultural crops, becoming the bane of farmers and researchers.
“There are lots of species that get here and don't become established, it's just a few that do,” said Jim Farrar, director of the Statewide Integrated Pest Management Program of the University of California Division of Agriculture and Natural Resources.
According to the UC-Riverside's Center for Invasive Species Research, invasive pests cost the state an estimated $3 billion a year. Intrusive plants alone cost California at least $82 million annually for control, monitoring and outreach, not including crop loss, as reported by the California Invasive Plant Council.
UC Davis researchers on a hunt for backyard chicken eggs around the Thomas Fire burn scar
(Ventura County Star) Cheri Carlson, April 3
Veterinarians at UC Davis have put out a call for eggs from California's backyard chicken owners, particularly those living near the Thomas Fire and other recent blazes.
They want to test the eggs for free in an effort to understand how they might be affected by wildfires, lead and other environmental factors.
It's called the Backyard Chicken Egg Study. And, they need help from backyard chicken enthusiasts, said Maurice Pitesky, a faculty member at the UC Davis School of Veterinary Medicine-UC Cooperative Extension.
“We're trying to understand the connection between the environment and our backyard chickens,” said Pitesky, who teamed up with colleague Birgit Puschner to test the eggs.
Backyard Chicken Owners Can Have Eggs Tested For Free By UC Researchers
(SF Gate) Bay City News Service, April 3, 2018
Bay Area Chicken Owners: UC Testing Eggs For Free
(Bay City News Service)
The city of Riverside pitched a white tent over the "Parent Navel" orange tree at the intersection of Arlington and Magnolia avenues last week to protect it from the threat of huanglongbing disease, reported Ryan Hagen the Riverside Press Enterprise.
“The Parent Navel is an iconic symbol of Riverside, as it represents the impact the citrus industry had on our economy,” Mayor Rusty Bailey said in a press release issued by the City of Riverside. “Riversiders hold this symbol of our citrus heritage very dear, so it is encouraging to see our parks personnel taking a proactive approach.”
The tree was one of two planted by Eliza Tibbets in 1873, when she received the seedless orange cultivars from Florida by mail. Tibbets cared for the trees and sold budwood to nurseries, which led to extensive plantings of nursery trees cloned from hers.
Huanglongbing disease made its appearance in Riverside last year in residential trees. Officials are working to prevent its spread by controlling Asian citrus psyllid, the insect that can move the disease from tree to tree. Meanwhile researchers are searching for a cure.
The Parent Navel's high value led UC Riverside researchers and city officials to construct the large white barrier.
"It's not beautiful," said Georgios Vidalakis, UC Cooperative Extension specialist and director of the citrus clonal protection program at UC Riverside. "It's obstructing the tree from public view, and we apologize for that. But the risk from not doing that is catastrophic."
Van Eenennaam operates at the forefront of biotechnology in animal agriculture, wrote reporter Marissa Fessenden. The researcher is raising cows in Davis whose genes were edited to omit horns, which spares the animals the painful process of horn removal.
The article says Van Eenennaam grew up as a 'horse-mad' city girl in Melbourne, Australia. She studied animal science at the University of Melbourne, and later earned master's and doctorate degrees at UC Davis. Van Eenennaam is an outspoken advocate for new technologies and works to separate misinformation from fact.
"We have to speak up," she said. "We're the people who know how (genetic editing) could be useful and how incredibly valuable the tool is. I'm not going to let the fearmongers dominate the conversation."