Posts Tagged: UC

UC Master Gardener of San Diego County’s ‘labor of love’ improves health of older adults

The Belden Village Apartments in Clairemont Mesa East of San Diego is home to a diverse population of older adults. Shital Parikh, a UC Master Gardener of San Diego County, took the initiative to build a garden that grows food and encourages residents to spend more time outdoors, getting their hands dirty alongside neighbors.

Almost a year ago, Parikh – a UC Master Gardener since 2014 – proposed to develop a community garden within the low-income residential facility with the intention that the residents would manage it independently overtime. When the San Diego Housing Commission (SDHC) and County of San Diego approved the proposal, Parikh moved swiftly to break ground on what is now the Belden Community Garden.

“The Belden Community Garden is a labor of love,” Parikh said. “One that has been made possible thanks to the knowledge and support gained from the UC Master Gardener Program and the invaluable support from Amy Zink from the County of San Diego Health and Human Services Agency.”

Breaking ground for a community garden

In September 2023, interested residents at the Belden Village Apartments gathered to learn of the project and understand how they can be involved. In October, the County of San Diego received a donation from Home Depot which included garden beds, and the materials needed to build them. All of which were donated to Parikh to establish the Belden Community Garden.

“This project has received approved funding from our partners and there has not been any out-of-pocket expense,” said Parikh.

In preparation for the garden beds, residents teamed up with more than a dozen UC Master Gardeners of San Diego County to learn various gardening skills. Some taught residents how to create seed tape, making it easier to plant seeds in an organized manner, the basics of vegetable gardening and food prep classes as well.

In January 2024, 13 garden beds were installed and ready for planting. In March, residents enjoyed their first harvest of vegetables and leafy greens by hosting a salad-making luncheon where everyone could taste the fresh produce grown on-site.

“The residents are at the heart of this, and it's been a joy to see them come together across different languages and cultures, sharing in the harvest and learning alongside us,” said Parikh.

Other than English, there are four primary languages spoken in the residential community, including Spanish, Arabic, Farsi and Vietnamese. All garden signs communicate the names of crops in these primary languages – a nod to the residents who helped establish and maintain the garden, which also features crops important in the various cultures.

Residents at the ‘heart' of it all

The Belden Community Garden has two residential garden coordinators, Art Dawson and Lisa Hillman, who are responsible for watering and general maintenance of the garden. Neither Dawson nor Hillman had prior gardening experience.

In the three years that Hillman has been living at the Belden Village Apartments, this is the first time she's participated in a community effort like the garden. “I didn't come outside or interact with neighbors much – but since I started volunteering here, I see so many people and I know more people in my community,” said Hillman, who described the various colors of squash – her favorite vegetable, so far – grown and harvested in the garden.

Dawson, in contrast, isn't a big fan of squash and prefers greens instead. “I'm African American, so I'm all about the collard greens,” said Dawson. Learning as he goes, Dawson said his primary job is managing irrigation.

“I've never gardened before in my life. But I like helping out and working with my hands,” he said. “I kind of like it. It keeps me busy, and I love seeing how everything grows from a tiny seed.”

Shahnaz Roshanoi, a resident whose native language is Farsi, said she was so happy when the garden came to fruition. Roshanoi maintains a garden of her own using the limited space that surrounds her apartment with plants reaching as tall as seven feet. Since the community garden was established, Roshanoi has been an active volunteer, sharing her extensive gardening knowledge with others and inviting more residents to join the fun.

Parikh's effort inspires development of more community gardens

During her earlier days as a UC Master Gardener, Parikh taught gardening via Zoom because of COVID-19. Parikh focused on teaching low-income residents, who are often at a disadvantage in accessing affordable healthy food options. Her gardening projects have all benefitted from her 10-plus years of experience in companion planting and crop rotation, pollinator gardens and native plants.

“Watching the garden evolve has been incredibly rewarding, and I can't wait to see how it continues to thrive!” said Parikh.

With generous support from the UC Master Gardeners Program of San Diego County, County of San Diego, SDHC's Achievement Academy, and the Del Mar Mesa Garden Club, the Belden Community Garden teaches residents how to grow their own food, enjoy it, and live healthier, happier lives.

The success and impact of the Belden Village community has inspired two more community gardens in low-income resident facilities located in the Mesa Valley and Otay Mesa neighborhoods in San Diego.

“I do what I can and then leave the rest to divinity,” Parikh said. “Time and again, help has found its way, or maybe it's simply a matter of trusting the process and staying consistent.” 

The UC Master Gardeners of San Diego County work to expand the love of gardening and improve food security across the county. You can support their efforts by donating at this link here: https://give.ucanr.edu/forms/SanDiego-MG

UC ANR publishes first-ever manual on olive production for oil

Growers, UC Cooperative Extension researchers offer guidance on producing high-quality olives

Facing a deluge of lower-price products from Europe, the California olive oil industry is doubling down on its clear-cut competitive edge: the consistent and bona fide quality of its oil.

“Olive Production Manual for Oil,” a new book published by University of California Agriculture and Natural Resources, aims to help California olive growers maximize that advantage.

“It's a tough market to compete in, but I think the way to win for California is to compete on quality,” said book co-editor Selina Wang, a UC Cooperative Extension specialist in the UC Davis Department of Food Science and Technology. “The quality of California olive oil is unmatched, but you can't make good quality olive oil with bad fruit, so the goal is to get more fruit from the trees – and for the fruits to be high-quality fruit.”

The 273-page manual, available for purchase online, is the first of its kind in the U.S. While some parts of the book are specific to California (which grows nearly all of the olives for domestically produced olive oil), most of the material would be useful to producers in other states, Wang noted.

“Through our conversations with growers, it became clear to us that a manual like this – not a scientific publication but a manual that is easy to follow, written in language that is accessible, and with pictures and illustrations – would be really helpful to the growers,” she said.

Growth of California olive oil industry necessitated creation of manual

Aside from a book focused predominantly on table olives and another on organic olive production (by UCCE farm advisor emeritus Paul Vossen), there was no one-stop, comprehensive resource on the bookshelf for oil olive growers. The need for such a manual had become more acute as oil olives replaced table olives in California orchards during the last 20 years.

Whereas harvesting by hand was historically cost-prohibitive, the introduction of super-high-density planting systems in 1999 made oil olive production more economically feasible. Mechanical pruning and harvesting of new cultivars (Arbequina, Arbosana and Koroneiki) – specifically bred for these densely planted orchards – led to the rapid expansion of oil olives in the state. According to a U.S. Department of Agriculture report, California olive oil production jumped from 2 million pounds in 2006 to an average of 21 million pounds in 2021–23. 

With about 37,000 acres of oil olives planted across California, the Olive Oil Commission of California saw the need to support the production of this manual. Championed by Dan Flynn, founder and executive director emeritus of the UC Davis Olive Center, Wang and co-editor Louise Ferguson outlined the contents of the book. They then sought out a mix of growers and industry professionals and UCCE advisors and specialists to write its chapters.

“Most of the information is data-based, from people who are working with the olives,” said Ferguson, a UC Cooperative Extension pomologist at UC Davis. “This is the first data-based olive oil production manual we've had.”

Manual infused with firsthand insights, practical recommendations

Hard-earned experience taught growers a valuable lesson that is conveyed in the book – the need to hand-prune. While mechanical pruning helps control the size of the trees, some hand-pruning is still required to allow light to filter to the leaves. Failing to do so leads to a dramatic decrease in yield.

“That happened in many of the orchards that were inexperienced in these new cultivars and new super-high-density planting systems,” Ferguson said.

She added that other key topics in the manual include irrigation management in a water-constrained state, nitrogen management, harvest timing and orchard site selection. Choosing a good spot for planting is crucial in this era of extreme climate volatility, Ferguson noted, as olive trees are significantly affected by temperature shocks in spring (fruit set) and fall (harvest).

For Wang, another overarching theme in the manual is the importance of testing. Testing the soil, water and leaves provides critical data that growers can use to adjust their inputs and production practices for optimal profitability.

“You may spend a couple hundred dollars on the lab work, but it will pay off, for sure – you're going to increase the health and productivity of your trees,” Wang explained. “Oil olive growers are paid based on the oil content in their fruit; you not only want to have a lot of fruit on the trees, you want to make sure that your fruit are accumulating oil.”

California oil olive growers, practices continue to evolve

Wang and Ferguson hope their book will help California producers compete more effectively in the global marketplace. Currently, about 90% of the olive oil consumed in the U.S. is imported from Mediterranean countries, due primarily to the lower price point. In that region, producers tend to harvest riper olives that produce oil at a greater volume but lesser quality.

In contrast, California growers harvest earlier and produce oil that is higher quality (with more flavor and more antioxidants) and far exceeds accepted standards for “extra virgin olive oil.”

According to Wang, California olive oil mills have nearly maximized their efficiency, and the growth opportunity for the industry is in the orchards: to optimize practices to produce more fruit, and to plant more trees. Wang said the new manual can help on both fronts.

“Just like for other crops, focusing on quality – while increasing efficiency and productivity, and therefore profitability – is the name of the game,” she said.

Ferguson also stressed that knowledge continues to evolve and urged growers to reach out to the editors and chapter authors with their experiences.

“Most of the authors are in California and they're working,” she said. “So if you start to notice things that are different, or you want more information or something is not clear, the authors are available.”

The manual can be purchased at https://anrcatalog.ucanr.edu/Details.aspx?itemNo=3559.

Diagnosing herbicide problems takes detective work

Field day offers examples, tips for solving the mystery

A grower applies an herbicide to his tomato plants, or thinks a neighbor's treatment is drifting over her almond trees. A short time later, the leaves start to bleach or shrivel. Was it the herbicide? Or maybe water stress? Soil nutrients? Perhaps an insect?

Figuring out the causes of crop problems takes detective work, and like solving any mystery, it starts with knowing the signs, gathering evidence and asking questions.

The Diagnosing Herbicide Symptoms field day at UC Davis was an opportunity to see, up close, the shriveled cotton, scorched corn and dying sunflowers that can result when herbicides are applied incorrectly. Using the right herbicide – in the right proportion, at the right time and in the right field – can make the difference between a thriving crop and a financial loss.

A top take-away to avoid problems: “Don't do stuff at night!” laughed Becky Wheeler-Dykes, a UC Cooperative Extension farm advisor attending the June 26 event to better serve growers in Glenn, Tehama and Colusa counties. “The packages look the same. People grab the wrong jug.” And then, disaster.

Instructors were Brad Hanson, professor of Cooperative Extension; and Kassim Al-Khatib, the Melvin D. Androus endowed professor for weed science; both in the Department of Plant Sciences. They were joined by John Roncoroni, a Cooperative Extension emeritus farm advisor rooted in the department's weed science program. Attendees were a mixture of people from agriculture, industry, government officials, university researchers and Cooperative Extension advisors. The event was hosted by the Weed Research and Information Center, based in the Department of Plant Sciences.

Out in a field west of campus, visitors could see the progression of damage, from control plots with green and healthy crops to plants that looked sadder as herbicide concentrations increased. Visitors could see the patterns of damage for common foliar chemicals such as glyphosate, paraquat, and 2,4-D, as well as soil-applied herbicides from several chemical classes.

“There's a lot of detective work,” said Stephen Chang, a master's student in Hanson's lab aiming for a career in Cooperative Extension. “For example, the company that makes the herbicide says there shouldn't be a problem, but the grower says, there is a problem. This course helps with developing the skills to figure out what happened.”

It might not be the herbicide at all

Detective work and problem-solving frame the approach, Hanson explained. The cause of crop damage can be simple or complex. Like a good mystery, what appears to be a clue can turn out to be a red herring. Professionals need to draw on their inner Sherlock Holmes to observe and document symptoms, look for patterns in the plants and in the field, ask questions, gather information about the larger environment and collect samples.

An herbicidal Agatha Christie would then suggest: What if it's not herbicide damage at all? Participants learned to consider the possibility of insects, pathogens and viruses, as well as problems with water, nutrients, soil condition and even root damage from cultivation practices.

Hanson recalled puzzling over symptoms he found in an orchard. The culprit? “A leaking natural gas line,” he said.

More resources for herbicide issues

Participants also heard from Molly Mathews, deputy agriculture commissioner from Yolo County, on how a field investigation is conducted. Lawyer Robert Davies, of Donahue Davies LLP in Folsom, outlined the basics of what happens when there are lawsuits related to crop damage from herbicide drift.

The Diagnosing Herbicide Symptoms field day is part of a larger program of education and outreach offered through the Weed RIC, said director Julia Stover-Blackburn. It was the first time the event has been offered since the COVID-19 pandemic, she added.

• For more information about field days and resources, visit the Weed RIC webpage.
• For a thorough discussion of herbicide symptoms, visit this page overseen by Al-Khatib and sponsored by University of California Agriculture and Natural Resources.
• This online course follows an earlier version of the Diagnosing Herbicide Symptoms field program.

This story was originally published on the UC Davis Department of Plant Sciences website.

Postharvest Center: New research focus and outreach

Still providing the world with top-notch information

UC Davis has been a leading source of information for people handling, packaging and transporting crops since the beginnings of the Postharvest Research and Extension Center in 1979. Now, the center is strengthening its focus on the needs of industry, offering fresh courses, weaving strategic partnerships and expanding into digital media, all while building up its research capacity to better serve the needs of the produce industry.

“We're asking people in the industry, ‘How can we support you? How can we better listen to you?' We want people to know we're not disconnected know-it-alls,” said new center co-director Bárbara Blanco-Ulate, an associate professor in the UC Davis Department of Plant Sciences. “We're getting more faculty involvement, people with expertise in related fields such as quality engineering and safety, as well as bringing in emeriti faculty and people from around California. We're forming partnerships with organizations around the world, and we've opened up to people from other institutions around the country.”

“The larger the network, the more things we can do,” added fellow co-director Irwin R. Donis-Gonzalez, an associate professor of UC Cooperative Extension in the Department of Biological and Agricultural Engineering.

The foundation: Expanded research

The new co-directors will beef up the center's applied science component with the hiring of a research specialist. They aim to provide new information that can be used industry-wide as companies explore new ways to handle and store fresh produce.

“We're building the capacity to respond to industry requests for research,” Blanco-Ulate said.

New courses, national reach

Their first workshop, held recently, demonstrates the center's renewed vision and commitment to broad networking: The Agricultural Water Systems Workshop addressed current concerns around water management and risks to food safety. Partners in the course included the Western Growers Association, the University of Arizona, the University of Florida and Salinas-based Taylor Fresh Foods, Inc.

Courses given over the past several years that have been recorded will be posted to the center's new, online video library and to the center's YouTube channel.

“People can watch those courses for free,” Blanco-Ulate said. In addition, new courses will be offered in-person and hybrid.

The co-directors are working with the University of California to offer continuing and professional education credits to course participants.

Online resources – many for free!

The center's website features a database with scores of free product fact sheets, which are downloaded by users around the world. The fact sheets are so highly regarded that they are considered expert evidence in legal proceedings, Blanco-Ulate said. Visitors to the website can also find links to research papers published by UC Davis faculty, including seminal works by Adel Kader, who founded the center.

Books are offered through the center's online bookstore and include titles through UC Agriculture and Natural Resources. Ten new titles are being planned, including topic-specific updates taken from previous classics.

Debunking myths: Ethylene

A new newsletter deals with a new problem: Misinformation about food and food handling that spreads through social media. One example is the use of ethylene to ripen produce such as bananas, so that they can be safely stored until ready for the consumer.

“Ethylene is safe for humans and does not leave any harmful residue on produce,” Donis-Gonzalez wrote in the center's latest newsletter. Even better news, he added: The levels of ethylene used on food are a tiny fraction of the concentrations that would be needed to create an explosion, one of the false alarms being raised in social media.

Evolving with the times

After 47 years of service, these and more updates will keep the center at the forefront of an evolving postharvest world. The top goal: Meet the needs of agriculturalists, industry and consumers.

“We are adapting to new needs, with both the resources and the workshop we're offering,” Donis-Gonzalez said.

“As a land-grant institution, we take our outreach mission seriously,” Blanco-Ulate added.

Related links

More about the UC Davis Postharvest Research and Extension Center.

This story first appeared on the UC Davis Department of Plant Sciences site.

UC SAREP funds 8 sustainable food and farming projects

 

Projects will support socially disadvantaged farmers, increase urban access to healthy food and more

The UC Sustainable Agriculture Research & Education Program (SAREP) is pleased to announce the recipients of the Sustainable Agriculture and Food Systems 2024-25 Small Grants Program. This grant program will fund planning, research and education projects that support the development of sustainable community food systems and environmentally sound and economically viable farming enterprises.  

Of the 33 eligible applications, eight applicants were selected to receive approximately $80,000 in combined funding to support their work. Individual grants are limited to $10,000. “The Small Grants Program is an important part of our mission,” said Ruth Dahlquist-Willard, interim director of UC SAREP. “By facilitating these grants, SAREP is able to support ANR in engaging a wide range of food systems stakeholders, outcomes show that a small financial investment can have a large impact in improving the lives of Californians.”

The eight recipients of this year's grants are:

Planning

Building Capacity and Resiliency Among Networks of Socially Disadvantaged California Farmers

Fresh Approach will establish a network of pooled learning and technical support that will aid emerging food-aggregation businesses in accessing sustainable market channels, including emergency food distribution. As part of the project, they will enhance an interactive GIS mapping tool of value chains to streamline market opportunities for socially disadvantaged farmers and aggregators. (Project lead: Andy Ollove, Fresh Approach)

Sustainable Urban Resident Food Gardens Expansion Planning Project

Growing Hope Gardens will systematize the process of outreach, discovery, design, planning and implementation in creating new urban resident food gardens. The project will document Growing Hope Gardens' garden development process into a training and implementation manual to more effectively duplicate food garden programs in more low-income urban communities. (Project lead: Carolyn Day, Growing Hope Gardens)

Research

Evaluating Best Management Practices for Cover Crops to Minimize Nitrogen Losses in California's Salinas Valley

This project will quantify the effectiveness of cover cropping at different planting times and termination dates to scavenge excess nitrogen in the soil and reduce nitrate leaching in a Salinas vegetable cropping system. The results will inform Ag Order 4.0 for cover crop credits and help stakeholders in the Salinas Valley better understand crop management for efficient nutrient cycling. (Project lead: Scott Fendorf, Stanford University)

Implications of American Kestrel Diet, Dispersal and Migration on Pest Control in Northern California Farming Systems

Investigators will study how the diet, post-breeding dispersal, and migration of nesting kestrels influences biological pest control on Northern California farms. The project will generate management recommendations for using the predatory bird for biological pest control in sustainable agriculture programs across California. (Project lead: Breanna Martinico, UC Cooperative Extension)

Education and Outreach

EAT! Community Farms Market Access and Promotion Project

This project helps socially disadvantaged and indigenous farmers in Riverside County create pathways for realizing economic return. EAT! will provide mentoring for marketing strategy development, connect farmers to buyers, promote the farmers market so it's more profitable for farmers, and provide a cooperative farm stand in the city of Norco for farmers to sell produce directly to consumers. (Project lead: Patrick Mitchell, Ecological Agricultural Training Cultural Center [EAT!])

Cultivating Cooperative Education, Stewardship and Connection at the Agroecology Commons Cooperative Incubator Farm

Agroecology Commons aims to address challenges faced by young, first-generation, BIPOC, queer and femme farmers at the Agroecology Commons Cooperative Incubator Farm in the Bay Area. The project will focus on education and outreach, providing technical assistance and training in regenerative agriculture practices such as soil health, pest management and crop diversification to socially disadvantaged farmers. (Project lead: Jeneba Kilgore, Agroecology Commons) 

Signage and Mural Refurbishment for Southeast Asian Farmers to Improve Direct-to-Consumer Marketing

This project will build new, long-lasting farm signs for Southeast Asian farmers growing diversified vegetables and berries in the Sacramento region. Improving the appeal and durability of farm signs will increase the profitability of the farm stands as these resource-limited farmers rely on direct-to-consumer marketing strategies to promote their businesses. (Project lead: Margaret Lloyd, UC Cooperative Extension) 

Community Nutrition Security and Education Program

Farm Discovery at Live Earth will increase access to organic produce for individuals and families experiencing food and nutrition insecurity in the Santa Cruz and Monterey Bay area. This will be accomplished through farming, outdoor education and nutrition education programs focusing on regenerative agricultural practices to connect youth and families to their regional agricultural and ecological systems. (Project Lead: Jessica Ridgeway, Farm Discovery at Live Earth)  

The UC SAREP Small Grants Program has a big impact! Help us fund more projects that support sustainable community food systems and environmentally sound, economically viable farming enterprises. To support this program, please donate here. Choose SAREP Small Grants Program for the designation.

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