Planting Seeds - Food & Farming News from CDFA

Wasps used to protect citrus trees from fatal disease – from the Los Angeles Times

Tamarixia radiata, the parasitic, stingerless wasp used to help control the Asian citrus psyllid.

Tamarixia radiata, the parasitic, stingerless wasp used to help control the Asian citrus psyllid.

By Geoffrey Mohan

They look like grains of black sand inside a prescription vial.

But each speck is a wasp that is lethal to the offspring of the Asian citrus psyllid, an aphid-size bug that spreads the bacteria that cause Huanglongbing, or citrus greening disease. If California’s $1.8-billion citrus industry is to buy enough time to stave off the disease, which has decimated citrus crops in Florida, Mexico and Brazil, those vials may as well be hourglasses.

At least nine trees on seven properties in San Gabriel tested positive for the disease this summer, the second outbreak in the state in three years. Crews have been going door-to-door on the streets around Vincent Lugo Park, inspecting trees and spraying them with insecticides. They hope to make a dent in the local population of the bug to keep the bacteria from hitching a ride to other trees in a quarantine area that has swelled to 87 square miles in the San Gabriel Valley.

Similar quarantines restricting the movement of citrus fruit and plants are in effect in 17 counties where the psyllid — but not the disease — has been detected. Growers have been applying insecticides in their orchards, but agricultural officials long ago concluded that wider spraying in urban areas far removed from orchards is too costly and is unlikely to stem the psyllid infestation.

Instead, David Morgan, a biocontrol specialist with the California Department of Food and Agriculture, raises at least 100,000 Tamarixia radiata every month in his hothouses in Riverside. His crews tap out the tiny wasps from those vials on citrus trees in a 40,000-square-mile area from Imperial County to Santa Barbara. They have released about 2.4 million Tamarixia since 2011. They also have spread a much smaller number of a second parasitic wasp, Diaphorencyrtus aligarhensis.

It’s probably best that you can’t see what Tamarixia does to the babies of the citrus psyllid. Female wasps lay their eggs on the undersides of the nymphs, and when the wasps hatch, they burrow into these juvenile psyllids and begin digesting their innards, eventually leaving an empty hull where the wasp can grow to maturity.

“It basically squirts out enzymes and slowly digests the host while it’s still alive,” Morgan said. The adult wasps also dine on the nymphs.

The densely populated Inland Empire may seem an unlikely place for ground zero of the psyllid infestation. Citrus production, which started here in the 19th century, has long since been swept away by urbanization. But urban populations and their fondness for citrus trees are aiding the spread of the bug and the bacteria it carries, according to researchers and agricultural officials.

The disease has not been detected in commercial orchards, largely because California reacted more quickly than Florida, where a decade-long outbreak has cost the industry an estimated $7 billion.

In 2009, a year after psyllids were first found near the Mexico border, growers created a voluntarily assessment that raises about $15 million a year for the Citrus Pest and Disease Prevention Program, some of which funds Morgan’s research. The U.S. Department of Agriculture gave the state nearly $9.6 million this year to fight the pest, and supports a related program at UC Riverside that provides Morgan with Tamarixiastock.

“We are trying to save an industry, but we’re also trying to save Grandma’s citrus tree in her backyard,” said grower Nick Hill of Greenleaf Farms in Kingsburg, who heads the prevention program’s executive committee. “If this thing gets through the state, it could conceivably wipe out citrus in the state of California.”

Even the “mother tree” of California’s famed navel oranges is infested with the psyllid — although it shows no signs of disease. Planted by Eliza Tibbets in 1873, the Brazilian variety launched the state to its lead position in the fresh citrus market. Now shaggy and 17 feet tall, it is fenced off in a pocket park in what is now the heart of Riverside.

“There’s actually more citrus in urban areas than there is in production in California,” said Morgan, who confesses to having 40 plants at his Riverside home. A crude survey by UC Riverside researchers — essentially a drive-by of about 670 homes — suggests 40% of urban and suburban residences in the Inland Empire have at least one citrus plant visible from the street. Morgan’s crews release their wasps mainly on trees that are publicly accessible.

That would not include the orange tree tucked away behind Iris Malakoff’s garage, a couple blocks from Lugo Park. Other than at harvest, Malakoff hardly gave the tree much attention since planting it a decade ago, she said. “There was just some extra space, so several years ago I put the orange tree there,” she said. Inspectors who are combing every property near Lugo Park sprayed the tree on July 30, she said.

“The biggest issue is getting people to know what they have in their backyard, and to not pass it on,” said Gretchen Sterling, who runs a farmers’ market on Thursdays at Lugo Park.

Many residents also had no idea that their orange Jessamine is in the same family as citrus and could host the psyllid, said Alfredo Sanchez, a California Department of Food and Agriculture supervisor who was overseeing spray crews near the park. Other lesser-known psyllid hosts include wampee and the Indian curry tree.

Although it is relatively easy to find the psyllid on such plants, where it leaves crusty white strands on the tender new growth on which it dines, it is harder to detect the disease itself. Early signs include a mottled, asymmetric yellowing pattern on leaves. Identifying the bacterium behind the disease requires DNA-based laboratory testing, which can be faulty.

Hoddle has been working on biological ways to control the psyllid since it first was detected in California counties bordering Mexico, in 2008. His work took him to eastern Pakistan in search of natural predators.

“My job is to figure out where the pest came from, go back to that country, see what’s eating it there and see whether there is any potential for those natural enemies to be released in California,” he said. After several years of testing, he found that two of the nine parasites he brought back proved suitable to California’s climate and did not seem to pose a threat to other flora and fauna.

“We feel pretty confident that we’ve found the two best natural enemies, and that they are pretty safe for California,” Hoddle said. “All they can eat is Asian citrus psyllid and they like it a lot.”

“The strategy is having time up your sleeve to prepare for the inevitable spread of the disease,” Hoddle said. “That enables other technologies to come online.”

 

 

Link to story

Posted in Asian Citrus Psyllid, HLB, Integrated Pest Management (IPM), Invasive Species, Uncategorized | 2 Comments

Updated UC Davis report on drought impacts to agriculture

  • Job losses and crop fallowing about 30 percent greater than 2014, but study notes that irrigation districts and farmers are showing more resilience than anticipated.
  • Groundwater, water trading and operational flexibility have significantly reduced losses.

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Statement from CDFA Secretary Karen Ross on the findings:

“This report details harmful drought impacts in certain areas of the state where water supplies are most scarce. At the same time, the report demonstrates the overall resilience of California agriculture.  Through expanded water conservation, careful use of groundwater, and deployment of new technologies, our agriculture sector has remained productive for the benefit of consumers across the country.  As the drought stretches on, our farmers and ranchers will continue to innovate.”

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News release from UC Davis:

Drought costs California agriculture $1.84B and 10,100 jobs in 2015

The drought is tightening its grip on California agriculture, squeezing about 30 percent more workers and cropland out of production than in 2014, according to the latest drought impact report by the UC Davis Center for Watershed Sciences.

In 2015, the state’s agricultural economy directly will lose about $1.84 billion and 10,100 jobs because of the drought, the report estimated, with the Central Valley hardest hit.

The analysis also forecasts how the industry will fare if the drought persists through 2017.

‘Not a free lunch’

Currently, the industry overall remains robust. The agricultural economy continues to grow in this fourth year of severe drought, thanks mostly to the state’s vast but declining reserves of groundwater, which will offset about 70 percent of the surface water shortage this year, the researchers said.

California is the world’s richest food-producing region. Continued strong global demand and prices for many of its fruits, nuts and vegetables has helped sustain the farm economy along with intrastate water transfers and shifts in growing locations.

“We’re getting by remarkably well this year — much better than many had predicted — but it’s not a free lunch,” said lead author Richard Howitt, a UC Davis professor emeritus of agricultural and resource economics.

The heavy reliance on groundwater comes at ever-increasing energy costs as farmers pump deeper and drill more wells. Some of the heavy pumping is in basins already in severe overdraft — where groundwater use greatly exceeds replenishment of aquifers — inviting further land subsidence, water quality problems and diminishing reserves needed for future droughts.

Further, several small rural communities continue to suffer from high unemployment and drying up of domestic wells because of the drought, particularly in the Tulare Basin.

“If a drought of this intensity persists beyond 2015, California’s agricultural production and employment will continue to erode,” said co-author Josué Medellín-Azuara, a water economist with the UC Davis Center for Watershed Sciences.

Major conclusions

The UC Davis team used computer models and the latest estimates of surface water availability from state and federal water projects and local water districts federal state and local water projects. They forecast several drought-related impacts in the state’s major agricultural regions for the current growing season, including:

  • The direct costs of drought to agriculture will be $1.84 billion for 2015. The total impact to all economic sectors is an estimated $2.74 billion, compared with $2.2 billion in 2014. The state’s farmers and ranchers currently receive more than $46 billion annually in gross revenues, a small fraction of California’s $1.9 trillion-a-year economy.
  • The loss of about 10,100 seasonal jobs directly related to farm production, compared with the researchers’ 2014 drought estimate of 7,500 jobs. When considering the spillover effects of the farm losses on all other economic sectors, the employment impact of the 2015 drought more than doubles to 21,000 lost jobs.
  • Surface water shortages will reach nearly 8.7 million acre-feet, which will be mostly offset by increased groundwater pumping of 6 million acre-feet.
  • Net water shortages of 2.7 million acre-feet will cause roughly 542,000 acres to be idled — 114,000 more acres than the researchers’ 2014 drought estimate. Most idled land is in the Tulare Basin.
  • The effects of continued drought through 2017 (assuming continued 2014 water supplies) will likely be 6 percent worse than in 2015, with the net water shortage increasing to 2.9 million acre-feet a year. Gradual decline in groundwater pumping capacity and water elevations will add to the incremental costs of a prolonged drought.

Groundwater regulations could help

The scientists noted that new state groundwater regulations requiring local agencies to attain sustainable yields could eventually reverse the depletion of underground reserves.

“The transition will cause some increased fallowing of cropland or longer crop rotations but will help preserve California’s ability to support more profitable permanent and vegetable crops during drought,” said co-author Jay Lund, director of the UC Davis Center for Watershed Sciences.

The report was primarily funded by the California Department of Food and Agriculture.

Other authors on the report include Daniel Sumner, a UC Davis professor of agricultural and resource economics and director of the UC Agricultural Issues Center, and Duncan MacEwan of the ERA Economics consulting firm in Davis.

Link to report

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The Farmer and the Chef – from Sacramento Magazine

By Marybeth Bizjak

Kurt Spataro and Suzanne Peabody Ashworth at Peabody Ranch in West Sac
Kurt Spataro and Suzanne Peabody Ashworth at Peabody Ranch in West Sacramento. Photography by Marc Thomas Kallweit

 

It’s 4 p.m. on a Tuesday at Formoli’s Bistro in East Sacramento, and farmer Susan Hanks has just dropped off a box of produce. Tucked in with the tarragon, thyme and oregano is a surprise for chef Aimal Formoli: a few pounds of loquats, still attached to the knobby branches on which they were growing in the Rio Linda sunshine just a few hours earlier.

Formoli pulls one of the small, apricotlike fruits off its branch and pops it into his mouth. A smile widens across his face. “Wow. That’s amazing,” he says. “So juicy.” By the time his first customers start arriving at 5:30 that evening, he’s already incorporated the fruit into his nightly special: braised pork with trumpet mushrooms and loquats, served on a crispy polenta cake.

Formoli and Hanks are emblematic of the relationship between today’s breed of chef and farmer. It’s less transactional and more collaborative. Increasingly, chefs and farmers see each other as partners in what ends up on your restaurant plate.

Take Kurt Spataro and Suzanne Peabody Ashworth. As executive chef for Paragary Restaurant Group, Spataro was an early adopter of the farm-to-fork movement. But as knowledgeable as Spataro is about food, he still drives out to Peabody Ranch in West Sacramento four or five times a year to learn from the woman he considers the master.

During a recent visit, Spataro follows Peabody Ashworth out into her fields to see what’s growing and find out how he might use it at his restaurants. A nationally renowned seed saver, Peabody Ashworth cultivates 20 acres of amazing diversity, growing rare and unusual heirloom fruits and vegetables that few people, even most chefs, are familiar with. Pointing out coriander that’s gone to seed, she pulls off some tiny green pods for Spataro to taste and tells him to think about how he might use them at Paragary’s Midtown Bistro, which recently reopened after a yearlong remodel. He thinks he might be able to pickle them as an accompaniment to cured fish, but he frets about a slight bitterness. “Does that change?” he asks. “As they mature, they’re less bitter,” Peabody Ashworth replies.


Aimal Formoli leaves the growing decisions to farmer Susan Hanks

They move through the field, sampling Pakistan mulberries, radish pods, cactuslike cristalina leaves and spiky bits from an obscure English coastal grass. Spataro asks questions and listens thoughtfully to Peabody Ashworth’s answers. “She’s an awesome resource,” he says.

Spataro met Peabody Ashworth about 15 years ago, when she had him out to the farm for lunch. The two clicked. Since then, he’s returned often, sometimes bringing employees to learn and be inspired. During one visit, Peabody Ashworth had him milk a goat just for the experience. “Every time I come, I learn something,” he says.

Antonio Garza (left) helped chef Shannon McElroy build a garden on Federalist’s rooftop

Not all farmer-chef relationships are one of teacher and pupil. For Antonio Garza, the farm manager at Soil Born Farms on Hurley Way, and Shannon McElroy, head chef at Federalist in midtown Sacramento, it’s more like a pas de deux.

They met a few years ago while working together at Feeding Crane Farms, an innovative urban farm in Natomas. Last year, as he got ready to open Federalist, a hip pizzeria housed in a series of connected steel shipping containers, McElroy asked his old pal Garza to come up with a custom salad mix that would work with McElroy’s sweetish fig chili vinaigrette. “I wanted greens that were less bitter, more sweet,” McElroy explains.

Garza created a proprietary mix that included oak leaf, curly red leaf, mizuna, curly red mustard and deer tongue. “He nailed it,” says McElroy. “I tasted it and said, ‘This is what I’m looking for.’”

Sometimes, Garza leads and McElroy follows. For Federalist’s arugula salad, McElroy tailored the dressing to suit Garza’s assertive greens. “His arugula is the best in town,” McElroy explains. “It’s spicier and nuttier than anybody else’s.” So McElroy backed off on the pepper in the lemon wholegrain mustard vinaigrette. He also uses Garza’s arugula to make pesto for the Neapolitan-style pizzas and sandwiches.

Garza has more than a passing interest in cooking; he follows chefs on Facebook and pays attention to what’s happening in the food world. Out in the field, he thinks like a chef. He picks produce at what he calls “the right size” for its intended dish, selects leaves for loft and texture, and uses shade cloth to grow lettuces with just the right combination of tenderness and crunch. “Antonio understands cooking,” says McElroy. “I can show him my menu, say I need this eggplant or those onions, and he knows exactly what I’m looking for.”

At their scrappy urban farm and scrappy shipping-container restaurant, the two share an up-by-their-bootstraps, DIY ethos. As one grows and prospers, so does the other. In May, Garza helped McElroy build a garden on Federalist’s roof so the chef can harvest herbs and tomatoes this summer. Garza hopes to buy some land and start his own farm in the next year or so. McElroy promises to follow. “I’ll use Antonio as long as I’m a chef in town,” he says


Sturgeon farmer Michael Passmore (left) and Kelly McCown on a pond at Passmore Ranch

When Sloughhouse sturgeon farmer Michael Passmore first tried marketing his fish to local restaurants, he was, by his own admission, naive. Randall Selland, owner of The Kitchen, had discovered Passmore selling live sturgeon at the Sunday farmers market under the freeway downtown and bought the fish for his high-end demonstration-dinner restaurant. “I thought all chefs would be like Randall,” Passmore recalls.

Instead, they recoiled from the prehistoric-looking fish. One day, discouraged after a string of unsuccessful sales calls, Passmore slumped in a chair at Selland’s downtown restaurant, Ella. Head chef Kelly McCown joined him for a beer.

McCown, who’d earlier made a name for himself at Martini House in St. Helena, advised Passmore to set his sights beyond Sacramento and gave him a list of chefs in Napa. Passmore ended up selling his sturgeon to Meadowood’s Christopher Kostow, a James Beard Award winner with three Michelin stars under his belt. With Kostow’s stamp of approval, says McCown, “Michael was in the club.”

Within a few years, Passmore Ranch sturgeon was being served in some of the country’s finest restaurants, many of them Michelin-starred: The French Laundry (Napa), Benu and SPQR (San Francisco), Nico and The Publican (Chicago), Rick Moonen’s RM Seafood (Las Vegas). Meanwhile, top Sacramento chefs like Kru’s Billy Ngo also started sourcing sturgeon from Passmore.

In the process, Passmore and McCown became great friends. They discovered shared interests and a similar way of looking at the world. McCown began holding experimental dinners at Passmore Ranch, using it as an incubator where he could try out “wackadoodle” ideas that wouldn’t fly in any restaurant. For one event, the two men spit-roasted a 100-pound sturgeon, MacGyvering a rotisserie in Passmore’s garage. For another dinner, they created an edible tableau resembling a riverbed teeming with whole roasted sturgeon, blanched bass and fried carp. The two now are such good friends that when McCown moved back to town recently to help open Randall Selland’s upcoming Italian restaurant OBO, he bunked at Passmore Ranch.

McCown may have pointed his friend in the right direction, but he gives all the credit to Passmore. “Michael built his business,” he says. “I take pleasure in the fruits of his labors.”

When it comes to getting produce from farmer Susan Hanks, chef Aimal Formoli doesn’t want much input. “I’ve begged him to tell me what he wants,” says Hanks, owner of Hanks Hens and All Things Good in Rio Linda. He refuses. He’s happy to receive a surprise delivery like those loquats. “Don’t tell me,” he says to her. “Just do it.”

Hanks runs what she calls a “whole farm” on 2 acres, raising egg-laying chickens and growing tomatoes, beets, peppers, squash, sunchokes, herbs, mandarins, nectarines, pears and more. She’s known for her pristine produce, which she harvests and delivers the same day to Formoli’s Bistro and other local restaurants.

Once a professional photographer, Hanks turned to farming in midlife, but she still sees herself as an artist. To get a sense of what Formoli might want for his restaurant, she periodically eats at his bistro, sitting at the counter so she can watch the cooks at work. Once, she delighted in watching them roll out sheets of pasta dough studded with whole sage leaves she’d supplied. This summer she’s growing dent corn, which she’ll later grind into polenta for Formoli. (“Polenta works with his palate,” she notes.)

Formoli is happy to leave the growing decisions to Hanks. “Whatever she decides to bring,” he says, “we’ll take. She’s the expert.”

All summer long, Heidi Watanabe delivers tomatoes to Michael Thiemann at Mother.

At her tomato farm in West Sac, Heidi Watanabe maintains an open-door policy for chefs. She works with a lot of them, supplying produce to just about every notable restaurant in Sacramento. Ella. Kru. Grange. Esquire Grill. Mulvaney’s B&L. The Firehouse. Lucca. Biba. The Waterboy.

And Mother, Michael Thiemann’s vegetarian tour de force on K Street. Thiemann likes knowing he can go out to the farm whenever he wants. He doesn’t buy only tomatoes from Watanabe Farms. (Watanabe and her husband Clark grow more than 40 varieties on 7 acres.) He’ll take anything she’s got, even the wild stuff growing with abandon on the property’s edges: miner’s lettuce, chickweed, wild radish and arugula, wild blackberries.

Thiemann worked with Watanabe years ago as a sous chef at Mason’s and later as executive chef at Ella. She supplied the tomatoes for his wedding. Over time, their relationship deepened and evolved. In the early days, Thiemann says, “It was more about what I wanted. I was trying to dictate. I’d say I want a vegetable that’s 4 inches long. Bullshit like that.”

Watanabe sat him down with a seed catalog and broke down the economics of farming. Chefs, she told him, can’t skim off the cream and leave the rest for the farmer to eat. He got it. Now, he buys whatever she grows. “It’s a lot harder on their end,” he explains. “Farming is no joke.”

She personally delivers to restaurants, driving the truck herself and often working until 10 or 11 p.m. Thiemann loves when she brings her products in through Mother’s front door and unloads them in front of his diners. “Looks cool, huh?” she once said to Thiemann with a grin.

If basil will be ready for picking in a week, Watanabe gives Thiemann a heads-up so he can start thinking about ways to use it. He gets excited at the prospect of anything new. When Watanabe had a bumper crop of squash, he used it promiscuously—in an avocado-and-squash salad, squash-and-potato latkes, battered squash blossoms, a fried squash sandwich. “The nice thing about Mike is, he never complains,” says Watanabe.

That openness makes her more than willing to collaborate. Last year, Thiemann asked her to grow Jimmy Nardello peppers. She did. This year, she tripled her planting of the peppers.

“He’s not a customer,” Watanabe says of Thiemann. “He’s more than a customer. I don’t know a good word. He definitely has input.”

Link to article

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Rent-a-chicken comes to California – From CBS-13, Sacramento

A farm in Davis has started a new program allowing people to rent chickens to get a first-timer’s taste of backyard chicken farming.

For those still trying to find a place in the pecking order of backyard chicken farming, this is for you. Flyway Farm in Davis has hatched a new idea where you can rent a hen and try before you buy—in case you chicken out.

MORE INFO: Rent-a-Chicken Sacramento

“If you have a landlord that maybe wants you to prove that having chickens isn’t disruptive, you can do that, too,” said Linda Easton. “You can see how your dogs are going to get along with the chickens, how your kids are going to get along with your chickens; so there are a lot of good reasons to rent.”

Easton says for about $75 a month, you can rent the hens along with all the feed and supplies you’ll need, as well as a hand-built coop on wheels.

“This space is just big enough for them to stay cool and protected in the summertime but also its small enough so they can use their body heat to stay warm in the wintertime, even on the coldest night,” she said.

The coop is designed to keep predators and the curious neighbor’s dog away, so the hens can lay about a dozen eggs a week.

“Fresh pasture raised eggs are actually more nutritious for you than the store-bought eggs,” she said. “They have a higher level of Omega-3s, lower cholesterol.”

Easton says raising backyard chickens isn’t necessarily easy and they do come with responsibilities.

“You do need to check on them every day,” she said.

But Flyway Farm will give the basic training you’ll need to put all your eggs in one basket.

“The work you put into it is definitely worth it especially when you get those fabulous eggs and you have these pets that are a lot of fun,” she said.

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The Sutter Peach

CDFA Undersecretary Jim Houston this week at the Lomo Station peach orchard in Live Oak, in Sutter County. California is the largest peach producing state in the country, and Sutter County alone, with  production of more than 184,000 tons at a value of nearly $70 million, out-produces the second and third ranking states, South Carolina and Georgia. So it really is time to start talking about "the Sutter peach."

CDFA Undersecretary Jim Houston this week at the Lomo Station peach orchard in Live Oak, in Sutter County. California is the largest peach producing state in the country, and Sutter County alone, with production of more than 184,000 tons at a value of nearly $70 million, out-produces the second and third ranking states, South Carolina and Georgia. So the time has come to start talking about “the Sutter Peach.”

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California State Climatologist: Do Not Count on El Nino to end drought

State Climatologist Michael Anderson issued the following statement on potential El Niño conditions:

“California cannot count on potential El Niño conditions to halt or reverse drought conditions.  Historical weather data shows us that at best, there is a 50/50 chance of having a wetter winter. Unfortunately, due to shifting climate patterns, we cannot even be that sure.”

Additional background:
The current drought has resulted in observations of new, record-high temperatures and record low snowpack for California. Five of the lowest 10 snowpacks on record have occurred in the last decade, including the past four years.  The seasonal snowpack is a key element to California’s water resources management, modulating winter precipitation into spring runoff for beneficial use through the dry summer.

As California heads into a new water year (October 1 to September 30) with a potential fifth year of drought and expectations of El Niño impacts in play during the winter, questions mount on what can be expected of winter temperatures, precipitation and snowpack for California.

Unfortunately, a historical look at past years with similar El Niño conditions as currently forecasted provide little guidance as to what California might expect this winter.  Of the seven years since 1950 with similar ENSO signals (1958, 1966, 1973, 1983, 1988, 1992, and 1998) three were wet years, one was average and three were dry (with water year 1992 perpetuating a drought).  Past years were cooler than the temperatures we are experiencing now which will impact the rain/snow boundary for any storms that materialize this winter.

For more detail and information on the unpredictable nature of the El Niño phenomenon, visit: http://water.ca.gov/waterconditions/docs/Drought_ENSO_handout4.pdf.

 

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Our system of Weights and Measures – always evolving, yet still the same

As this nearly 60-year-old video shows, times have changed, but the need for an accurate system of measurement has not. The demands of California’s sealers of weights and measures are the same as for English practitioners in 1956 – take the necessary steps to ensure fair commerce. For more information visit CDFA’s Division of Measurement Standards web page.

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Governor Brown signs olive oil labeling legislation – from the Vacaville Reporter

Olive oils

Gov. Jerry Brown signed into law Senate Bill 65, legislation by Senator Lois Wolk, D-Solano, changing an outdated labeling law that enabled olive oils to say they were produced in California, or a region of California.

“As California’s olive oil industry continues to grow, it is critical that labels accurately reflect the product consumers are buying,” Wolk said, who chairs the Agriculture Subcommittee on Olive Oil Production and Emerging Products. “If olive oil uses ‘California’ on the label, then 100 percent of the oil must be from olives grown in California. If a reference is made to a specific region in California, then that’s where the majority of that olive oil should have been grown. There must be truth in labeling.”

In addition to requirements relating to the use of “California” on labels, SB 65 requires that if an oil’s label references a specific region in California, then at least 85 percent of the oil, by weight, must be from olives grown in that specific region.

Additionally, if reference is made to a specific estate within California, then at least 95 percent of the oil, by weight, must be from olives grown on that specific estate.

SB 65 reflects new standards set by the Olive Oil Commission of California, established by a law Wolk authored in 2013. The commission engages in olive oil quality and nutritional research and recommends grading and labeling standards to the California Department of Food and Agriculture.

Link to story

 

 

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Innovation is blooming at water-wise urban farms – from the Los Angeles Times

An example of vertical farming at urban farms.

Using aquaponics at urban farms.

By Katie Shepard

As California moves through its fourth summer of drought, cutting back on water use means shorter showers, fuller dishwashers and drier lawns for most people living in urban areas.

But for small farms nestled between city streets, saving water means recycling it — and finding new ways to keep plants alive without wasting the precious liquid.

The Growing Experience in Long Beach uses some of the latest drought-conscious growing techniques for urban agriculture.

Unlike the large industrial farms that give California its reputation as the salad bowl of the nation, urban farmers don’t have to let fields sit fallow to reduce water use. The small-scale operations leave room for more creative approaches to drought-friendly growing practices. For those producing and selling food in the city, the drought has provided opportunities as well as obstacles.

“In a way it’s been even good for us because people are more inclined to see we’re doing a good thing,” Jimmy Ng, program director and manager at the Growing Experience in Long Beach, said. “People can see that to some extent and appreciate how much less [water and resources] it takes to get this food to market.”

Romaine lettuce, watercress, basil, mint and bok choy grow in vertical towers between pieces of sponge-like growing material instead of dirt. The plants are watered through a closed-loop system that pumps water to the top of each column and collects whatever drips down to the bottom to recirculate into large holding tanks. Fish swim inside the tanks, adding nutrients the plants need to survive. Then the water is pumped back up to the top of the towers to trickle down through the plant roots and back to the fish again.

The system, known as aquaponics, uses less water than traditional soil planting because very little water is lost to evaporation and none is absorbed into the ground. Four times as many plants can grow in one square foot because the columns provide extra space for the leaves and roots to spread upward.

Some Los Angeles City Council members hope there will be more urban farms filling their own city’s empty lots in the near future. Councilman Felipe Fuentes said his district has properties that have been blighted for years, but the landowners won’t improve them. Fuentes and Councilman Curren Price have proposed a measure to offer tax incentives for property owners who rent or donate their land for agricultural purposes for at least five years.

Because Los Angeles’ watering restrictions apply only to grass lawns, urban farmers would be able to establish flourishing new gardens.

Not only would these urban farms replace ugly, empty lots, but they also would create community spaces that encourage activity, healthy eating and potential economic growth, Fuentes said.

“These farms speak to a lot of opportunity for Los Angeles,” he said. “They can fortify the nutritional balance of peoples’ lives.”

 

Municipalities can place regulations on urban farms — which are often not zoned as agricultural sites — as if the farm were a home or a store. And the water costs the same as the liquid running through the tap at home, which is often more expensive than water specifically allocated to agriculture.

The Growing Experience waters its plants just twice a week because of Long Beach regulations, and it is experimenting with other methods to reduce water use.

In a corner of the 4.5-acre farm, space is reserved for native California and drought-resistant plants. These crops are watered heavily in the first few weeks to anchor roots in the ground and give seedlings plenty of hydration. But for the rest of the season, the plants get water only from whatever rain falls on the lot. The technique is called “dry farming.”

Reduced watering can produce smaller fruits and vegetables than shoppers are used to. But the smaller food is no less tasty, Ng said.

The Growing Experience’s subscribers agree to accept smaller produce in drought years. But when the dry spell breaks, they will be sent larger fruits and vegetables every week, Ng said.

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Peppers a hot topic in medical research at UC Davis – from the Sacramento Bee

banana-peppers

By Katie L. Strong

Humans love Sriracha sauce, and the pleasurable, painful sensation that makes us want to slather tacos, rice and barbecue with it and other spicy condiments comes down to one molecule: capsaicin.

Professors Jie Zheng and Vladimir Yarov-Yarovoy at UC Davis, in collaboration with researchers in China, recently got an unprecedented, close-up view of this molecule, as well as what happens inside our bodies when we eat the spicy foods that contain it.

Cracking the code on how this spice affects the body could do more than satisfy culinary curiosity: It could help scientists design medication for a broad array of ailments, such as those related to cardiac dysfunction, neurological disorders and chronic pain.

“We can eventually use this method in the future to design new, more selective drugs that would have less side effects for patients,” Yarov-Yarovoy said. “That’s where we’re going.”

When we eat hot foods, capsaicin comes into contact with our body’s primary sensor for heat and pain, which produces the sensation of spiciness.That sensor is in fact a type of ion channel, a protein in our bodies that opens, almost like a gate, in response to a stimulus. Different ion channels respond to things such as heat, a drug or a naturally occurring compound, and their opening regulates almost all of our bodily processes, including muscle movement, heartbeats and the formation of memories. This rapid ion channel opening eventually leads to a movement in our body or a sensation that we can perceive.

“People have known for many, many years that capsaicin works on this channel to open it, but there is no structural understanding of how capsaicin binds to it and how capsaicin opens the channel,” said Fan Yang, a post-doctoral researcher in Zheng’s lab.

To determine why capsaicin causes the sensation of spiciness, researchers created a video based on computational modeling of the tiny, atomic interactions between capsaicin and the channel it interacts with.

“The capsaicin molecule in the binding pocket is not staying there stationary,” Zheng said. “In fact, a part of the molecule, the tail as we call it, is waving about like seaweed in water. If the tail is waving about, it is just like when you take a picture of somebody who is moving. You get a fuzzy picture, and we had a fuzzy picture of capsaicin.”

Results from this work help explain why capsaicin from hot peppers causes a burning sensation, but sweet peppers do not. The chemical compound in sweet peppers, called capsiate, has an oxygen where capsaicin has a nitrogen. This chemical difference, although small, determines how our heat sensor reacts. On the Scoville scale for chemicals, which measures pungency of spicy foods, capsiate has a rating of 16,000 Scoville heat units, while capsaicin comes in 10 times stronger.

The study also helps elucidate why humans are sensitive to capsaicin, but other species, such as birds, are insensitive. In fact, humans are the only species in the world that intentionally seek out the enjoyable pain of spiciness.

Capsaicin’s spiciness provides a protective element to pepper plants, but if this protection were extended to birds, it would stop birds from helping to spread its seeds. Birds have the same ion channel that we do, but there are small differences where capsaicin interacts, meaning that birds do not feel spiciness like we do.

Ion channel dysfunction is related to diseases of the heart, brain, muscles and other essential components of our body, meaning that this work may help pave the way for more effective medications that treat a variety of ailments.

A number of drugs exert their effects by interacting with ion channels. The epilepsy medication carbamazepine (Tegretol) influences an ion channel in the brain, while the anti-arrhythmic drug flecainide (Tambocor) targets an ion channel in the heart. The commonly administered drug lidocaine (Lidoderm) behaves as an anesthetic by blocking a specific ion channel related to pain.

Structural modeling done in the Yarov-Yarovoy and Zheng labs, which is allowing us to visualize the ion channels as never before, is focused on developing new, effective drugs for ion channels like those already approved.

“Even though there are a lot of details that we still need to figure out, we start to see the picture, and this is the most beautiful thing to us,” Zheng said.

 

 

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