Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
Division of Agriculture and Natural Resources
University of California
Division of Agriculture and Natural Resources

Posts Tagged: UC

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

A high-density California olive orchard has about 200 to 300 trees per acre. Increasing planting density was crucial for making oil olive production more economically feasible in California. Photo by Boundary Bend Olives; copyright UC Regents

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.

The new oil olive production manual, published by UC ANR, is the first of its kind in the U.S. Copyright UC Regents

“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. 

Of the three main varieties planted in super-high-density systems, Arbosana has the most consistent fruit yield. Photo by Dan Flynn; copyright UC Regents

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.

The manual chapters – written by growers, industry professionals and Cooperative Extension experts – all begin with key takeaways for easy reference. Copyright UC Regents

“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.

Posted on Tuesday, September 24, 2024 at 7:37 AM
Focus Area Tags: Agriculture, Food, Pest Management

Diagnosing herbicide problems takes detective work

Kassim Al-Khatib, right, of the Department of Plant Sciences, explains symptoms from the group of herbicides that work by mimicking plant hormones and the synthesis of fatty acids, demonstrated on rows of annual crops. Photos by Trina Kleist, UC Davis

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.

Participants at the recent UC Davis Diagnosing Herbicide Symptoms field day saw test plots showing different levels of damage on different crops caused by commonly used herbicides when applied improperly.

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.

Brad Hanson, center, of the Department of Plant Sciences, describes symptoms from several types of herbicides that work by blocking amino acid synthesis in annual crops including sunflower, shown here. Becky Wheeler-Dykes, left, is a UC Cooperative Extension farm advisor in Glenn, Tehama and Colusa counties.

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.

John Roncoroni, second from right, a Cooperative Extension emeritus farm advisor, explains symptoms caused by a group of herbicides that affect the photosystem or act by disrupting cell membranes. The corn, left, shows damage caused by improperly applied herbicide.

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.

Posted on Wednesday, July 3, 2024 at 10:20 AM
  • Author: Trina Kleist, UC Davis
Focus Area Tags: Agriculture, Environment, Food, Pest Management

Postharvest Center: New research focus and outreach

Irwin Doniz Gonzalez, left, and Bárbara Blanco-Ulate are the new co-directors of the UC Davis Postharvest Research and Extension Center. They are updating the center's focus and offering more online resources, while expanding the research that forms the foundation for the center's value to growers and postharvest industries. Photo by Trina Kleist, UC Davis

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.

Undergrad student Dilasha Shenaz assesses quality and mold incidence of table grapes -- the kind of work taken on by the UC Davis Postharvest Research and Extension Center. Shenaz is in the lab of center co-director Bárbara Blanco-Ulate. Photo courtesy of Bárbara Blanco-Ulate, UC Davis

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.

An example of the type of assistance the UC Davis Postharvest Research and Extension Center can offer: In Guatemala, doctoral student Alice Dien trains farmers and scientists on topics related to drying agricultural produce. Dien is a student in the lab of center co-director Irwin Donis-Gonzalez, in the Department of Biological and Agricultural Engineering.

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.

Brightly colored fruit winds along a conveyor belt inside one of the working areas of the UC Davis Postharvest Research and Extension Center. Photo courtesy of UC Davis

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.

Posted on Wednesday, June 26, 2024 at 4:15 PM
  • Author: Trina Kleist, UC Davis
Focus Area Tags: Agriculture, Food, Health, Innovation

Green Hall of Famer Oki retires after 29-year UC career

UCCE specialist's research prevents water pollution, reduces water use

Loren Oki (center) with his daughter, Sebrienne (left), and wife, Cynthia (right), at the Green Industry Hall of Fame Award Ceremony in Fall 2023. Photo courtesy of Loren Oki.

When interviewed to become a University of California Cooperative Extension specialist in environmental horticulture, Lorence “Loren” Oki was asked what kind of research he wanted to conduct.

In response, he showed the hiring committee a photo of a residential gutter. “Water is a big concern, and I found very little research on runoff from homes,” said Oki, explaining that studying residential runoff is what “started his career” with UC Agriculture and Natural Resources back in 2002.

Although he remains active supporting growers and advising industry leaders, Oki retired from UC ANR in July 2023. Before joining ANR, Oki worked as a researcher for UC Davis' Department of Environmental Horticulture studying greenhouse irrigation in 1994, bringing his total time with the University of California to 29 years.

Oki, professor emeritus of Cooperative Extension at UC Davis, led many research projects that advanced the green industry which includes landscapes, nurseries and floriculture.

“Loren is the epitome of a specialist,” said Darren Haver, UC ANR's Research and Extension Center system director, who has worked with Oki for more than 20 years on projects that have  significantly improved urban water quality and water conservation efforts across California.

Oki and Karen Ross, Secretary of the California Department of Food and Agriculture. Photo by Saoimanu Sope.

Research influences pesticide management statewide

With a $3 million grant funding a statewide study, Oki and Haver set out to characterize runoff from residential sources over a five-year period. They determined the volume of irrigation runoff from residential land use, as well as the pollutants in the runoff.

Oki and Haver, co-principal investigators, along with researchers from UC Davis and UC Riverside, discovered that the degradation products of the insecticide fipronil – commonly found in runoff water – were more toxic than its parent compound. The study led to an investigation of human pathogens and pathogen indicators in residential runoff, the first of its kind.

Another contribution was the early detection of a new pesticide used for ant control, enabling strategies to be put in place to prevent it from reaching local streams and creeks. Oki and Haver's work also persuaded the California Department of Pesticide Regulation to change pesticide labels to minimize the chances of pesticides moving off target during irrigation and rain events. 

These changes included preventing pesticide application before predicted rain and preventing irrigation after applications, keeping pesticides from impervious surfaces, and restricting applications on lawns and landscape beds within two feet of impervious surfaces and others.

Plant trials expand beyond California

Oki was also the principal investigator of the Climate-Ready Landscape Plants project, which may be the largest irrigation trial in the western U.S., and the UC Plant Landscape Irrigation Trials, the California component of that project. The UCPLIT trials originated in 2004 at UC Davis as a research project by Karrie Reid, retired UCCE environmental horticulture advisor for San Joaquin County, while she was pursuing her master's degree. In 2017, the irrigation trials were duplicated at the South Coast Research and Extension Center.

These projects evaluate landscape plants under varying irrigation levels to determine their optimal performance in regions requiring supplemental summer water. Throughout the trial, Oki identified many landscape plants, including rose cultivars, that remain aesthetically pleasing with little water.

Today, the trials have expanded beyond California as the Climate-Ready Landscape Plants Project at Oregon State University, University of Washington, University of Arizona and Utah State University.

Fields from the UC Landscape Plant Irrigation Trial in Davis (June 2021).

Growing up in the nursery industry

In 2017, Oki obtained tenure, allowing him to expand his professional responsibilities to include production horticulture, specifically greenhouses and nurseries, an industry he was extremely familiar with. “I come from a nursery family,” Oki explained. “My grandfather started Oki Nursery in the early 1900s.”

During World War II, Oki's family was incarcerated in the Poston Relocation Center in Arizona and lost their homes and property. When they were released, they returned to the nursery industry to rebuild their lives. “After World War II, my father and uncle got more involved with my grandfather's work,” he said.

The Oki family played an instrumental role in technological development for nurseries in general. Oki Nursery, which was located in Sacramento, worked closely with IBM and was the first to use a computerized system in the industry.

Oki developed computerized scheduling for the bedding plants, poinsettias, chrysanthemums, bulbs and other crops.  He developed a method to calculate the cost of any crop grown by the nursery at any point in the crop cycle and computerized greenhouse environmental and irrigation controls. This may not sound impressive now, but that was in the 1980s.

“My father was known for being progressive and he also knew everyone at UC Davis,” said Oki. “He wanted to work with anyone who had an interest in doing something good for nurseries.”

Oki installs soil moisture sensors at a SmartLandscape site, a research project focused on water conservation at UC Davis. Photo courtesy of David Fujino.

Inducted into Green Industry Hall of Fame

In the 1950s, Oki Nursery partnered with researchers from UC Davis' agricultural engineering program and developed the overhead sprinklers commonly used in nurseries today. Until the 1980s, Oki Nursery was the largest nursery in Northern California. Before it shut down in 1993, Oki worked in the family business as a greenhouse manager when runoff became a growing concern.

“I remember getting served with a notice by the Regional Water Quality Control Board stating that we needed to prevent runoff because it was polluted with nitrate fertilizer, which was common in the nursery industry,” Oki said.

One of those efforts focused on using controlled-release fertilizer instead of applying fertilizer via irrigation as a liquid feed. “What we learned is that if we converted nurseries to controlled-release fertilizer, we could reduce the nitrate runoff,” he said. While a member of the Oki Lab, Bruno Pitton earned his Ph.D. studying nursery hydrology and the fate of nitrogen fertilizers in container crop production adding to the information on runoff and nitrate management. Pitton is now the environmental horticulture advisor for Placer and Nevada counties.  

In 2023, Oki was inducted into the Green Industry Hall of Fame, which recognizes individuals with a minimum of 20 years in the landscape, nursery or floriculture industry and who have made significant contributions to the field.

Having grown up in the industry, Oki said that his father taught him to never be afraid to try new things. “If you think you have an idea that might work, do the best you can to make it work. If it doesn't work out, then it doesn't work out. And that's OK,” he said.

Oki with Gerry Spinelli (left) and Grant Johnson (right) at the International Plant Propagator's Society Meeting for the Western Region. Photo by Saoimanu Sope.

Revitalizing space for greater impact

This mentality encouraged Oki whenever tackling new tasks, like rebranding the California Ornamental Research Federation, a space for education and collaboration, as UC Nursery and Floriculture Alliance.

In 2009, Oki and David Fujino, executive director of the California Center for Urban Horticulture, became co-directors of CORF, which catered to the cut flower industry. At that time, Oki and Fujino realized that nurseries generated much greater revenue in the state than cut flowers.

“It was a strategic decision to change CORF to UCNFA, which included floriculture and nurseries in the name,” Fujino said. Combined, nurseries and floriculture have consistently placed in the top five agricultural commodities in the state.

When reflecting on their partnership, Fujino said that working with Oki was a “natural fit.” “I couldn't have asked for a better partner, a better colleague and, ultimately, a better friend to have my back and work side by side,” he added.

Since UCNFA's launch, the two have worked to maintain the group's impact by hosting “Ask your Advisor” webinars to connect advisors to growers, as well as co-hosting large-scale events such as the annual conference for the International Plant Propagators' Society — an organization focused on greenhouse and nursery production education — for the Western Region, which Oki's father helped establish in the 1960s.

Encouraging a return to education

Gerry Spinelli, UC Cooperative Extension production horticulture advisor for San Diego County and member of UCNFA's administrative committee, described those who have learned from Oki as his sons and daughters. “When I meet someone that's learned from Loren or worked with him, that person instantly becomes my friend. That's the kind of effect Loren has on us,” Spinelli said.

Grant Johnson, UC Cooperative Extension urban agricultural technology advisor for Los Angeles and Orange counties, credits Oki for his master's degree in horticulture from UC Davis.

“Loren gave me a lot of direction as far as career choices and research interests. He instilled in me a dedication to life-long learning, just like he continues to do,” said Johnson. Before Oki became his professor, Johnson worked with Oki as a staff research associate at the South Coast Research and Extension Center in Irvine.

Another influential person in Oki's life is John Kabashima, emeritus environmental horticulture advisor for UCCE Orange and Los Angeles counties and fellow Green Hall of Fame inductee. Like Oki, Kabashima grew up in the nursery industry.

Oki, who earned a bachelor's degree in ornamental horticulture from Cal Poly San Luis Obispo and a master's degree in plant science from UC Riverside, decided to pursue a Ph.D. in ecology at UC Davis with Kabashima's encouragement.

While Oki was still working in his family's business, Kabashima said that Oki relied on UC ANR researchers for scientific information and felt like Oki wanted to be one of them. “I told him that he's a good nursery guy, but he's a better scientist,” said Kabashima. “His heart is in science.”

The two began working together as soon as Oki became a graduate student and have been colleagues and friends for nearly 40 years. “My favorite response from Loren whenever people ask him a question is, ‘It depends,'” Kabashima said. “It always leads to people opening up and giving more context. That's what Loren does, he gets you to think.”

John Kabashima and Oki in deep thought. Photo courtesy of John Kabashima.
Posted on Friday, May 17, 2024 at 3:06 PM
Tags: floriculture (0), Fujino (0), horticulture (0), IPPS (0), Kabashima (0), Loren Oki (0), nursery (0), plant (0), retirement (0), science (0), UC Davis (0), UCNFA (0)
Focus Area Tags: Agriculture, Environment, Innovation, Natural Resources

4-H, Boys and Girls Club, UCCE partner to inspire Orange County kids

Boys and Girls Club of Garden Grove member, Amore, reads a nutrition label for an activity on healthy eating. All photos by Saoimanu Sope.

Small containers with varying levels of sugar sit next to a row of beverages, including water, fruit juices, soda, a sports drink and chocolate milk. Trying to match each container with the beverage that contains its corresponding amount of sugar, Amore, a fourth grader, reads the nutrition label on the orange juice bottle. “What does the bottle say?” asked a student in the audience, attempting to help Amore.

Life skills such as how to read a nutrition label are representative of learning that youth can expect when joining 4-H, a nationwide program focused on empowering kids ages 5 to 18. 4-H offers experiential learning opportunities ranging from STEM (Science, Technology, Engineering and Mathematics) and healthy living to civic engagement and leadership.

To expand its reach and make their program more accessible, 4-H launched a digital learning platform called CLOVER by 4-H that offers content tailored for three types of users: learner, parent and educator. As the platform grows in popularity, 4-H is eager to identify best practices in engaging new users to join the platform and retain their interest.

BGCGG members participate in a lesson on healthy eating.

More than 250 free 4-H lessons

In California, 4-H programs are overseen by University of California Agriculture and Natural Resources. Given its successful contributions to statewide initiatives in the past, 4-H in Orange County, administered through the local UC Cooperative Extension office, was one of three counties selected to participate in a CLOVER pilot project in conjunction with the National 4-H Council. With more than 250 4-H lessons available online at no cost, the pilot project aims to introduce its users to 4-H.

To generate interest, 4-H in Orange County is leveraging connections to local Boys and Girls Clubs. In March, they hosted more than 20 kids from the Boys and Girls Club of Garden Grove (BGCGG) – including Amore – for a day of learning and exploration at the UC South Coast Research and Extension Center in Irvine, where the 4-H program for Orange County is based.

Rita Jakel, community education specialist and program coordinator for 4-H of Orange County, said that partnering with BGCGG will, hopefully, inspire its members to join their local 4-H club.

“The youth created a CLOVER account before engaging in eight CLOVER lessons taught by the staff at the Boys and Girls Club during their weeklong Spring Break Day Camp,” said Jakel, noting that the participants were introduced to 4-H before arriving to South Coast REC for in-person activities.

BGCGG member learns about composting from a UC Master Gardener volunteer.

Interactive nutrition and gardening lessons

During their visit, the participants engaged in a typical day of 4-H lessons featuring presentations from the local Expanded Food and Nutrition Education Program (EFNEP) and UC Master Gardener volunteers. Jakel then wrapped up with interactive sessions on animal adaptations—understanding the challenges animals face in gathering food—as well as lessons on growing and cooking with herbs.

“One of the most rewarding aspects of working with young people is the opportunity to creatively educate them on various subjects, ensuring that learning is both enjoyable and engaging,” said Javier Miramontes, community nutrition and health supervisor for EFNEP in Orange and Los Angeles counties, who started the day off with the lesson on nutrition labels. 

Miramontes visually explained how much sugar is found in various beverages and then challenged the students to do so on their own. “It's important to me that all students participate, as engagement is key at their age, not only for inclusivity but also to maintain their focus,” he said. Miramontes concluded with a review of his lesson and was pleased that most of the class demonstrated a solid understanding of the key topics.

While the intention of CLOVER is to introduce users to 4-H in hopes that they would want to become members of their local clubs, Jakel believes that participating through CLOVER could be just as effective, if not more. “We're testing out the idea of bringing kids to our facility for typical 4-H programming. If they like it, our hope is that they'll sign up on CLOVER and gain access to our educational approach there,” said Jakel.

BGCGG members attempt to pick up food using different instruments for an animal adaptation activity.

4-H in person and online

The goal is to give youth options so that the 4-H experience, whether in person or online, does not feel out of reach.

When discussing their collaboration, Jakel said that the BGCGG staff would continue to support interested kids and their families with CLOVER registration. The staff also agreed to conduct programming based on the digital platform at their facility to continue exposing BGCGG members to all that 4-H has to offer, which they have already reported as easy to implement and engaging among the youth.

During their time in the garden, members learned about vermiculture and how worms are essential for compost. Mary Nguyen, STEM specialist for BGCGG, said that she enjoyed watching the youth light up when they are playing in the dirt and learning about how fruits can be combined to produce new generations. To wrap up their visit to the garden, the group received a small worm box to use for their own school garden.

“I hope that more fun field trips – and hands-on activities involving research that youth can participate in – will come from our partnership with South Coast REC and 4-H,” Nguyen said.

Rita Jakel teaches BGCGG members about different herbs.

Field trips to see, touch, smell and taste 

From a UC Master Gardener's perspective, the youth were extremely interested in learning about everything and asked many questions. “I loved their curiosity,” said UC Master Gardener volunteer Laura Holly, who helped with the garden demonstration and tour of UC South Coast Research and Extension Center. “They wanted to know why certain pipes were painted purple (to indicate reclaimed water), about the windmills and how avocado trees are grafted.”

“More children would benefit from seeing how the trees that produce the fruit they eat grow,” Holly added.

Hannah, a fourth grader, said that she loved the lesson on herbs that Jakel led before the participants boarded the bus to return home. All members got to see, touch, smell and taste four different herbs before planting their own to take home. “I had a lot of fun. I think if I had to grow one thing, it would be chives. They actually taste really good,” Hannah said.

Amore, who knew what lavender smelled like before, had never seen a lavender plant. “My mom loves lavender, but I didn't know this is what it looks like. I planted some lavender to take home for her,” she said.

The partnership with BGCGG is one of many that Jakel hopes to foster in Orange County, in addition to uniting UCCE programs to enrich the learning experience for youth who visit South Coast REC and those enrolled in the 4-H program. Her goal, in line with that of CLOVER, is to make 4-H programming more accessible for the youth, parents and educators alike.

To learn more about 4-H in Orange County, visit https://oc4h.org/.

BGCGG member, Hannah, shows off the herbs she planted.
Posted on Wednesday, May 15, 2024 at 1:11 PM
Tags: 4-H (0), Boys and Girls Club (0), compost (0), EFNEP (0), garden (0), Garden Grove (0), nutrition (0), Orange (0), UC Master Gardener (0)
Focus Area Tags: 4-H, Family, Food, Health

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