Posts Tagged: Ben Faber
Continuing education credits required by the California Department of Pesticide Regulation will now be available from UC Cooperative Extension by participating in live webinars.
“Everybody is busy,” said Beth Grafton-Cardwell, UCCE citrus entomology specialist. “It's hard for people to get to meetings. Now, they can get some of the hours they need for updating their professional licenses from home or work, or even on their smartphones.”
Live webinars allow experts to talk about timely issues, such as new pest outbreaks, and give participants the option to ask questions via chat and get immediate answers from presenters.
The first webinar is from 3 to 4 p.m. Oct. 17 and will focus on citrus thrips, a perennial pest in citrus production that can vary greatly from year to year. Grafton-Cardwell will discuss biology, biological control, temperature effects, damage, monitoring, chemical control and resistance.
Participants must register in advance on the UC Ag Experts Talk website and connect to the webinar from beginning to end in order to receive continuing education credit. The course will be held on Zoom, communications software that enables video conferencing. Attendees will link into the meeting with audio and video online via computer or smartphone. Details for connecting will be emailed following online registration.
The continuing education sessions will be offered each month by various UC Cooperative Extension experts. On Nov. 14, Ben Faber, UCCE advisor in Ventura County, will discuss avocado diseases. Future class dates and topics will be posted on the UC Ag Experts Talk website.
Professional pest control advisers must complete 40 hours of continuing education every two years; qualified applicator certification and qualified applicators license renewal requires 20 hours every two years, according to the California Department of Pesticide Regulation.
All the webinars will be recorded and the sessions posted on the web, however, watching the recording will be for informational purposes only and not eligible for continuing education credit.
If you're like most of us, you “go bananas” for a banana for breakfast.
It's healthy, nutritious and packed with potassium.
But wait! You should probably go bananas for another fruit--that pear-shaped avocado. Did you know the avocado provides more potassium than a banana?
It does. A medium-sized banana yields 422 milligrams of potassium, while a medium-sized avocado, a whopping 708 milligrams.
“Eating more unsaturated fats -- as opposed to saturated fats and processed carbohydrate -- is a delicious step we all can take to maximize cardiovascular health,” Adams says. “Avocados are such a delicious way to do that!"
We love our avocados, our veritable green goddess that never disappoints, never deceives, never dissatisfies, whether we “butter” them on toast in the morning for breakfast, or slice or chunk or cube them for our salads at lunch and dinner. Health-conscious folks call them a superfood, and even mash and freeze them to ensure a steady supply in the winter. There's even a website on “50 Things to Love About Fresh Avocados.”
This year, California's 2000 avocado growers anticipate a yield of 374.6 million pounds. That crop forecast, according to Tom Bellamore, president of the California Avocado Commission, is nearly double the yield of the 2017 crop and “despite the ravages of Mother Nature in California's avocado growing regions.”
UC Cooperative Extension adviser and avocado researcher Ben Faber of Ventura and Santa Barbara counties, points out that the avocado is really a fruit, not a vegetable. “The Supreme Court classified the tomato in 1920 or so as a vegetable because that's the way people think of it and it was taxed differently for tariffs. Politics or botany separates a lot of things in our lives.”
“The avocado is an amazing fruit,” Faber says. “It grows on a tree and comes to maturity, reaches certain oil content and a stage at which it will ripen, but it does not ripen on the tree. It needs to be removed from the tree before it will soften. If the fruit is removed before it has reached maturity it will not soften, and will remain rubbery and inedible.”
“One of the problems is that the fruit will hang on the tree for an extended period of time and it is hard to know when they are mature,” Faber points out. “Avocados are not like apricots where you have about two weeks to get the fruit off before it falls off. As the fruit stays on the tree, it gradually develops more and more oil content and has a richer flavor.”
What if the fruit stays on the tree too long? “It can develop an almost rancid flavor,” Faber says. “So it is good to know when the best, acceptable flavor is. Avocado varieties fall into general seasonal periods when they are mature, such as ‘Fuerte' and ‘Bacon' in winter, ‘Hass' in spring/summer, ‘Lamb-Hass' in summer/fall.”
The fruit will typically be ripe in seven to ten days, Faber advises. “If you want to speed things along a bit you can take three or four avocados and place them in a loosely closed paper bag with two or three Red or Golden Delicious apples or ripe kiwifruit. The purpose of the apples or kiwifruit is that these fruit produce a natural plant hormone, ethylene, that will help stimulate the avocado to produce its own ethylene. Apples and kiwifruit are known to produce lots of ethylene. The Delicious apples are varieties that produce more ethylene than other apple varieties. You can keep them even after they are shriveled and they will be producing ethylene.”
Never place your avocados in a plastic bag “unless you keep it open since the fruit needs to breathe during this process,” he says. “Just keep the fruit on your kitchen counter or in a warm place; 68F is the ideal temperature. Lower and higher temperatures both actually slow the process.”
Plant scientists trace the origin of the avocado (Persea americana) to south central Mexico. The avocado belongs to the flowering plant family, Lauraceae. Growers and gardeners glean tips on pest management from the industry and from the UC Statewide Integrated Pest Management Program.
Of the many known varieties, avocados fall into three broad categories based on whether they are of the Mexican, Guatemalan or West Indian races of Persea americana, the avocado species and the crosses that occur between these races. Generally speaking, California varieties have been the result of crossing between the Mexican and Guatemalan races. West Indian race varieties are not common here because of their generally lower cold tolerance.”
Ben Faber, like Linda W. Adams, enjoys avocados. He usually buys them “whenever they are reasonably priced.”
“One of the reasons I do research is that all the downed fruit is not salable because it is against food safety restrictions to introduce it into the food chain and all that fruit either gets eaten by coyotes or me,” he quips, adding “The tree is too big to fit into my backyard.”
Looking for a great recipe? The California Avocado Commission offers many recipes, including what it calls “The Best Guacamole Ever."
Dietitian Adams shares one of her favorites at https://www.delish.com/cooking/recipe-ideas/a19872947/avocado-tomato-salad-recipe/.
Avocado Tomato Salad
1/4 cup extra-virgin olive oil
Juice of 1 lime
1/4 tsp. cumin
Freshly ground black pepper
3 avocados, cubed
1 pint cherry tomatoes, halved
1 small cucumber, sliced into half moons
1/3 cup corn
1 jalepeño, minced (optional)
2 tbsp. chopped cilantro
In a small bowl, whisk together olive oil, lime juice, and cumin. Season with salt and pepper.
In a large serving bowl, combine avocados, tomatoes, cucumber, corn, jalapeño, and cilantro. Gently toss with dressing and serve immediately.
Enjoy! The avocado keeps good company!
The avocado, often thought of as a vegetable, is really a fruit and it's packed with potassium. (Photo by Kathy Keatley Garvey)
Avocado addicts know the avocado as a veritable green goddess that never disappoints, never deceives, never dissatisfies. (Photo by Kathy Keatley Garvey)
Dietitian Linda W. Adams
An avocado must be removed from the tree before it will soften, says UC Cooperative Extension advisor Ben Faber. (UC ANR Photo)
Woodland as ag hub topic of forum
(Woodland Daily Democrat) Jenice Tupolo, Jan. 30
Developing Woodland as an agricultural center is becoming more of a reality, even as local organizations worked together in creating a forum focused on agricultural innovation in Yolo County.
...The city of Woodland, AgStart, UC Agricultural and Natural Resources, and the city's Food Front initiative hosted keynote speaker and vice president of the UC ANR, Glenda Humiston, at the conference.
Small Farmers in Fresno Hope for Big Moringa Payoff
(KQED) Katrina Schwartz, Jan. 26
The Mouas, along with other Hmong farmers growing moringa, have been working with farm advisers at Fresno County's UC Cooperative Extension to learn how to dry, powder and store their moringa so they can expand into new markets. Most farmers sell it fresh, but most of the health food craze exists around moringa powder, often imported from India.
… “Value-added products are a great way for a small family farm to increase their income,” said Ruth Dahlquist-Willard, a small-farm adviser with the program. Many farmers are accustomed to only selling fresh produce. They plant a diverse set of crops in a small area and sell a little bit of everything. Producing a product that requires the extra step of drying, grinding and storing is a whole new world for many of them.
“I think there's a lot of opportunity there,” Dahlquist-Willard said. She's particularly excited about how a product might bring the younger generation back to their family farms. Kids who have gone off to college for business, marketing or graphic design might see a new kind of future for themselves on the family farm with a product like moringa.
SLO County's Top 20 Under 40: Meet the 2017 award winners
…Katherine E. Soule, 35, is director of the UC Cooperative Extension for SLO and Santa Barbara counties, where she's earned state and national recognition for improving community health and increasing diversity in youth participation.
As the extension's youth, families and communities advisor for the last several years, Soule developed new 4-H programs engaging underserved youths and promoting healthy living, leadership and social development. Her efforts nearly doubled enrollment and boosted Latino participation 26.8 percent. She's delivered nutrition education to more than 10,000 people through various partnerships.
Flooding alfalfa for groundwater recharge
(Morning Ag Clips) Jan. 24
A rigorous field study in two California climate zones has found that alfalfa can tolerate very heavy winter flooding for groundwater recharge. The research was published online Jan. 16 in California Agriculture journal.
The alfalfa research is the latest in a series of projects studying the effects of using land planted with permanent crops – including almond orchards and vineyards – to capture and bank winter storm water. Such projects have great promise but also require collaboration across multiple jurisdictions and agencies. UC Agriculture and Natural Resources vice president Glenda Humiston has made groundwater recharge on working lands and open spaces a division priority and is working with water and land use leaders around the state to facilitate it through policy recommendations and cross-agency collaboration.
Band Canker Affecting Younger Almonds
(California Ag Today) Patrick Cavanaugh, Jan. 24
Brent Holtz is a UC cooperative extension Pomology Farm Advisor for San Joaquin County. He recently told California Ag Today about how the fungus band canker on almonds is becoming more prevalent in the San Joaquin Valley.
“I've seen a lot more band canker, which is caused by a pathogenic fungus, Botryosphaeria dothidea, and we're seeing it on young orchards, especially in in San Joaquin county," said Holtz. "We've seen that a lot out in the delta and we've seen it in eastern San Joaquin county where the soils tend to be a little heavier, maybe old dairy ground and richer and we don't really know why."
CCOF Annual Conference to Focus on Organic Hotspots
AgNet West) Jan. 22
Registration is available for the California Certified Organic Farmers (CCOF) annual conference, Organic Hotspots: Revitalizing Rural America. The event is scheduled for February 22 and 23 at the Sheraton Grand Sacramento Hotel in Sacramento.…
The event will focus on organic hotspots and how rural economies can potentially be stimulated by organic production. Topics will include partnerships between elected officials and the organic community, the role of education and research, along with the process of growing organic produce in local communities. The event will conclude with a keynote speech from Glenda Humiston, Vice President of the University of California Division of Agriculture and Natural Resources.
California Today: 100 Million Dead Trees Prompt Fears of Giant Wildfires
(New York Times) Thomas Fuller, Jan. 19
The more than 100 million trees that died in California after being weakened by drought and insect infestations have transformed large swaths of the Sierra Nevada into browned-out tree cemeteries. In some areas more than 90 percent of trees are dead.
This week a group of scientists warned in the journal BioScience that the dead trees could produce wildfires on a scale and of an intensity that California has never seen.
…“It's something that is going to be much more severe,” said Scott Stephens, a professor of fire science at Berkeley and the lead author of the study. “You could have higher amounts of embers coming into home areas, starting more fires.”
Winter's good time for gopher control in nut crops
(Western Farm Press) Cecelia Parsons, Jan. 17, 2018
Tree nut growers who are plagued by gopher invasions in their orchards need to stick with effective control measures if they want to minimize tree losses.
Pocket gophers are common in most nut production areas, says Joe Connell, University of California Cooperative Extension Farm Advisor Emeritus in Butte County. In the absence of cover crops or weeds, they will gnaw on tree roots and trunks, and the hungry vertebrate pests can even girdle — and kill — older trees. Trees with root damage and girdling will lose production, and will be susceptible to crown gall, which weakens their structural strength.
Bloomington nursery's citrus trees to be destroyed by California agriculture department
(ABC7 KABC) Rob McMillan, Jan. 17, 2018
Roxana Vallejo was 12 years old when her parents opened up Santa Ana Nursery in Bloomington. Wednesday, the California Department of Food and Agriculture will be at her business to destroy almost all of their citrus trees. Vallejo said the combined value of the trees is almost $1 million.
"They're all fine, and look at all the new growth, it's pretty good," Vallejo said.
The reason they're being cut down is huanglongbing, or HLB, one of the world's worst citrus diseases. The insect that spreads HLB has taken a strong foothold in Southern California.
"It's estimated that the citrus industry may go commercially extinct unless they can get a handle on this problem," said Mark Hoddle, UC Cooperative Extension specialist at UC Riverside, more than one year ago.
OPINION: Ranchers give thanks
(Ventura County Star) Beverly Bigger, president of the Ventura County Cattlemen's Association, Jan. 16, 2018
Ventura County is home to a robust and historic cattle industry, one that makes up a $2 million portion of Ventura County's agricultural sector. Ranchers play an important role in land management as well, their grazing operations clearing overgrown brush, reducing the fuel available to wildfires and protecting nearby communities.
In the space of 12 hours, the Thomas Fire ripped through vital grazing land that cattle rely on for their daily feed. Sadly, some animals were also lost to the fire.
With feed and fencing gone, many ranchers had hard decisions to make regarding the future of their operations, and some were not prepared for this kind of disaster. Thankfully, we have dedicated public servants who stepped up to help the cattle industry.
Ventura County Agricultural Commissioner Henry Gonzales, Matthew Shapero from the UC Cooperative Extension, and Donna Gillesby and Bryan Bray of Ventura County Animal Services all reached out to ask what they could do to help.
An emergency program was put in place to supply five days of hay until ranchers could get on their feet. The UC Extension also provided a one-stop location where ranchers could meet with representatives from multiple agencies to apply for assistance programs.
The assistance of these agencies was very much appreciated. We want to thank and recognize them for helping us in our time of need. We look forward to returning to our passion: managing and improving the land and continuing Ventura County's ranching heritage.
Farm advisor tests strategies for controlling horseweed
(Ag Alert) Bob Johnson, Jan. 10, 2018
One morning last summer, University of California Cooperative Extension vineyard weed control advisor John Roncoroni displayed a horseweed plant that had grown to more than 10 feet tall in a Yolo County vineyard.
Horseweed, which is widely seen on the sides of the state's highways, is among the glyphosate-resistant weed pests that can develop healthy populations in even well managed vineyards.
"We're really having problems with weeds coming in the fall that are resistant to Roundup," Roncoroni said. "Willow herb is tolerant; it's never been completely controlled by glyphosate."
Pomegranate returns not so wonderful but largest grower says otherwise
(Hanford Sentinel) By John Lindt, Jan. 11, 2018
A few years ago Central Valley pomegranate growers appeared to be riding a rising tide of popularity for pomegranates spurring optimism about the crop's future. Growers, including those in Kings County, enjoyed prices of over $1,700 a ton as recently as 2011.
After a significant planting of new trees, by 2015 pomegranate tonnage was fetching just $450 a ton in Fresno County and falling to $362 a ton in Tulare County according to its 2016 crop report.
…UC Farm Adviser Kevin Day says it's simple economics. “We are seeing both overproduction and lack of demand for pomegranates despite expectations to the contrary."
Western Innovator: Promoting sustainable ranching
Tracy Schohr has devoted much of her career to promoting sustainability in ranching.
While at the California Cattlemen's Association, she put on an annual “rangeland summit” that brought ranchers together with environmental experts and climate change policymakers.
She also worked on a program to limit ranchers' risk of facing Endangered Species Act violations if they created habitat on their land.
After going back to school to earn her master's degree at the University of California-Davis, Schohr has become a UC Cooperative Extension livestock and natural resources adviser based in Plumas, Sierra and Butte counties. http://www.capitalpress.com/California/20180108/western-innovator-promoting-sustainable-ranching
Weed Control with Brad Hanson UC Cooperative Extension Weed Specialist at UC Davis
(California Ag Today) Patrick Cavanaugh, Jan. 8, 2018
“Weeds are probably one of the year-in, year-out problems that growers face,” said Brad Hanson, UC Cooperative Extension, who discussed herbicide resistance with California Ag Today.
Building blocks for tending flocks
(Auburn Journal) Julie Miller, Jan. 7, 2018
Counting sheep is no longer for the tired and sleepy.
Shepherding has become a booming industry in Placer County. At last count, there are 9,000 head of sheep registered with the county, said Dan Macon, livestock and natural resources advisor for University of California, for Placer and Nevada counties. And there may be more sheep that have not been registered, perhaps because they are in a smaller flock of 10 to 15, he said.
Sheep have proven to be versatile. Not only raised for the meat and milk, but also wool fibers, plus, they can help reduce fire danger by eating away tall grasses and shrubs.
After a recent outbreak of E.coli, is it safe to eat romaine lettuce? Experts differ
(Fresno Bee) Robert Rodriguez, Jan. 5, 2018
If you are staying away from romaine lettuce because of an outbreak of E.coli, it's understandable. But at least one food safety expert says it may not be necessary.
…But University of California food safety expert Trevor Suslow said it's unlikely the lettuce you buy at the grocery store these days is going to do you any harm. That's because the illnesses happened from Nov. 15 through Dec. 8. Lettuce sold during that period wouldn't be around anymore.
“It's not going to last that long, it's gone,” Suslow said.
Cattle Ranchers Join Conservationists To Save Endangered Species And Rangelands
(Forbes) Diana Hembree, Jan. 5, 2018
…California has a strong incentive to preserve its 18 million acres of ranchland: Cattle and calves are the state's fourth-leading agricultural commodities (milk and cream are No. 1), according to state agricultural data. But in a Duke University survey of the state's ranchers, more than half said they were “more uncertain than ever” that they would be able to continue ranching. California is losing an estimated 20,000 acres of rangeland each year, according to the Nature Conservancy, and on any given day ads for the sale of cattle ranches dot the Internet. The median age of California ranchers is 58 to 62, and more are aging out of the business with no children interested in taking over the ranch.
But this trend can be reversed, according to Lynn Huntsinger a professor of environmental science and rangeland ecology at UC Berkeley. To preserve these landscapes for future generations, ranchers need payment and recognition for their ecosystem services “in order to preserve these working landscapes for future generations,” Huntsinger writes.
Months after Wine Country fires, damaged vineyards face uncertainty
(SF Chronicle) Esther Mobley, Jan. 4
…“No one knows what's the real threshold for heat damage,” says Rhonda Smith, the Sonoma County-based viticulture farm adviser for the University of California, who has come to Gilfillan to consult on its rehabilitation.
Much of the conventional wisdom about how fires interact with vines — that vines can't burn, because of their high water content, for instance — didn't turn out to be true for every vineyard, she says.
“In 99 percent of cases, vines were fire breaks,” says Smith. But if there was dry vegetation, if there was wood mulch on the ground, if the soil was especially dry — if, if, if — then they weren't.
Progress reported on robotic weeders for vegetables
(Ag Alert) Bob Johnson, Jan. 4
The next generation of computer-controlled, automated cultivators will be able to use cameras to remove weeds in the seed line as close as 1 inch from young tomato or lettuce plants, without damaging the crop.
“It must be more than half the lettuce acreage that is already using the automated thinners,” said Steve Fennimore, UC Cooperative Extension vegetable weed specialist.
Fennimore is supervising the Salinas lettuce trials of “marking” the crop in order to make this technology practical for weeding as well.
“The weeders already out there tend to be prototypes that people are still experimenting with,” he said.
2017's natural disasters cost American agriculture over $5 billion
(New Food Economy) Sam Bloch, Jan. 4, 2018
Over a period of 10 months in 2017, America experienced 16 separate, billion-dollar weather and climate-related disasters. Those weather events carved paths of destruction straight through some of the most fertile and productive regions of the country, wreaking havoc on beef cattle ranches in Texas, soaking cotton and rice farms in Louisiana, orange groves in Florida, and burning up vineyards in California. And that was all before Southern California's still-active Thomas fire, which began on December 4, and then closed in on the country's primary avocado farms. It's now the state's largest-ever, in terms of total acreage.
- Acres of cherimoya trees in Santa Barbara County destroyed by the Thomas fire: 100
- Total dollar value of Santa Barbara cherimoya fruit damaged by fire: $5,000,000
- Acres of avocado fields in Santa Barbara and Ventura Counties threatened by wildfire: 5,260
- Estimated pounds of Hass avocados in Ventura County lost to wildfire: 8,060,000
- Total dollar value of that lost harvest: $10,175,750
- Approximate percentage of American avocado crop threatened by wildfire: 8
- Expected effect of wildfire on avocado prices in America, due to reliance on imports: 0
- Winegrape acreage in Napa and Sonoma Counties: 104,847
- As a percentage of total California winegrape acreage: 22
- Estimated dollar value of unharvested Cabernet grapes in those counties, before the wildfires: $175,000,000
- Estimated dollar value of those grapes, now tainted by smoke: $29,000,000
- Bottles of 2016 Napa Cabernet you can buy for the price of two 2017 vintages, due to winegrape scarcity: 3
California wildfire data from Daniel A. Sumner, Ph.D. of UC Agricultural Issues Center, USDA NASS, Ben Faber, Ph.D. of UC Cooperative Extension Ventura.
There Is No “No-Fire” Option in California
(Bay Nature) Zach St. George, Jan. 2, 2018
As the use of prescribed fire by Cal Fire declined in recent decades, its use also declined with private landholders, says Lenya Quinn-Davidson, director of the Northern California Prescribed Fire Council, who leads prescribed burning workshops across the state. Scott Stephens, the UC Berkeley professor, concurs. Decades of suppression left the western U.S. with relatively few people trained to carry out the work: “We just don't have that experience to pass on.” But it's important not to let the current enthusiasm pass, he says—as climate change continues to push conditions toward extremes, as wildfires consume more and more of fire agency budgets, and as the wildland-urban interface expands, it will only become more difficult to bring fire back.
Scientist discusses working on Food Evolution movie
(Brownfield Ag News) Larry Lee, Jan. 1
A scientist involved in a movie about genetically modified food says many don't understand what GM is, let alone the benefits. Alison VanEenennaam says, “Really, it's a breeding method, and I think the public sector applications for things like disease resistance have very compelling societal benefits that I think most people can relate to. I don't think we want plants and animals getting sick, and if we can solve that problem genetically rather than using chemicals, I think people get that.”
VanEenennaam is a geneticist at the University of California. She tells Brownfield there is a lot of unnecessary fear about eating genetically modified food. “The safety around GM (Genetically Modified) has been established and is, you know, agreed on by every major scientific society in the world and yet we've got the vast majority of consumers that don't believe that.”
Urban Edge farm program offers immersion-style learning
(East Bay Times) Lou Fancher, Jan. 1, 2018
After operating a pilot version of the ambitious program, a $200,000 grant from the USDA National Institute of Food and Agriculture's Beginning Farmer and Rancher Development Program is a launch pad for the immersive learning experience.
For the first cohort of students, many of them women and/or people of color, immigrants, refugees, veterans or farmers-to-be with limited resources, the land is a classroom. Instruction comes from First Generation and experts from the National Center for Appropriate Technology and UC Cooperative Extension. Participation in the program represents opportunity and fulfills dreams the first-time farmers hold of agricultural avocation, economic stability, families, homesteads and permanence.
(Lodi Wine blog) Randy Caparoso, Jan. 1, 2018
This coming February 6, 2018, Lodi winegrowers will get together for their 66th Annual LODI GRAPE DAY. They will also mark the occasion with a celebration of the retirement of Paul Verdegaal, who has been working full-time as San Joaquin County's viticulture, bush berry and almond Farm Advisor under the auspices of UCCE (University of California Cooperative Extension) since 1986.
Steele, a UC Master Gardener in Orange County since 2000, brought in a contractor to install a valve behind her washing machine and flexible tubing to channel graywater to mulch pits in the front yard. The pits ensure that there is no graywater runoff or pooling on the property, important factors for using the recycled water. Steele found that the pits also work well for distributing fertilizer to her plants.
“I feel very positively about it,” Steele said. “One of my rose bushes, a climbing Fourth of July, is happier than it's ever been.”
With recent changes in state regulations, residents of single-family and two-family homes in most California communities may install simple laundry-to-landscape graywater systems without a permit, said Janet Hartin, UC Agriculture and Natural Resources (UC ANR) environmental horticulture advisor.
“On average, 10 to 25 gallons of water is generated per load in a front-loading washer and about 40 gallons per load from a top loader,” said Hartin, a horticulturist with UC ANR Cooperative Extension in San Bernardino, Los Angeles and Riverside counties. “A family of four running about eight loads of wash per week can keep three to six mature trees well irrigated just with laundry water.”
Hartin and co-author Ben Faber, a UC ANR Cooperative Extension advisor in Ventura County, recently published a 10-page guideline that details the basics of developing a laundry-to-landscape graywater use system in California. The publication, Use of Graywater in Urban Landscapes in California, can be downloaded for free from the UC ANR online publications catalog.
Hartin and Faber's publication focuses on washing machine water because, among the legal sources of graywater – including bathtubs, showers, bathroom washbasins and laundry tubs – regulations pertaining to its use have been eased at the state level. State health codes preclude the use of toilet discharge (‘black water') and wastewater from kitchen sinks or dishwashers in order to prevent the spread of pathogens in the landscape. Safe use of laundry graywater still requires precautions to maintain food safety and prevent pollution.
Hartin recommends laundry graywater users carefully select their laundry detergent to make sure it does not contain boron, phosphates or bleach.
“Choose liquid detergents over powders to avoid potentially high levels of sodium and fillers containing sodium which can have a negative impact on plants,” Hartin said. “Products such as Borax that contain boron can also prove toxic to plants. Although boron is required for plant growth, it is needed in very small amounts. Also, instead of using chlorine-containing bleach, use oxygenated bleaches like hydrogen peroxide.”
Laundering cloth diapers or other similarly soiled items should be done with the washing machine draining into the sewer, not the graywater system.
“The first concern should be making sure pathogens are not transferred onto humans or food for human consumption,” she said.
The recycled water can be used to irrigate trees, shrubs and flowers, but not root vegetables or in any capacity where it might touch edible leaves or fruit. To be on the safe side, Hartin recommends using potable water for all edible crops and using recycled graywater for ornamental plants.
An initiative to improve California water quality, quantity and security is part of the UC Division of Agriculture and Natural Resources Strategic Vision 2025.
Author: Jeannette E. Warnert
Ventura County Star.
At the event, UCCE advisors talked about the status of ag industry in Ventura County, where total farm production is nearly $2 billion annually. Strawberries, the county's leading crop since the early 2000s, are valued at $690 million. However, production is threatened by dwindling water supplies.
"We can't avoid this topic," said Oleg Daugovish, UCCE advisor.
UCCE advisor Ben Faber also discussed the water situation. The average annual rainfall in Oxnard was 17 inches between 2003 and 2008.
"We're living in an environment that rarely sees the average rainfall," Faber said.
Faber's work includes showing growers how using too much or too little water is more likely to cause plant disease and demonstrating new ways of measuring the water content in soil, the article said. One solution to water woes is using recycled water in nurseries. The practice saves 14 to 42 percent of water.
UCCE advisor Jim Downer talked about the movement of exotic pests that are a potential challenge to agriculture. California is particularly vulnerable to these pests because of its vast and varying geography and climate, he said.
Ventura County's top 10 ag commodities were on dispaly in a Model T truck at the UC Cooperative Extension Celebration of Science and Service.