Posts Tagged: agriculture

New pest infesting almonds and pistachios in the San Joaquin Valley

Crop sanitation will be key to controlling the invasive carpophilus beetle

Growers and pest control advisers (PCAs) should be on the lookout for a new pest called carpophilus beetle (Carpophilus truncatus). This pest was recently found infesting almonds and pistachios in the San Joaquin Valley, and is recognized as one of the top two pests of almond production in Australia. Damage occurs when adults and larvae feed directly on the kernel, causing reductions in both yield and quality.

Populations of carpophilus beetle were first detected in September in almond and pistachio orchards by University of California Cooperative Extension Specialist Houston Wilson of UC Riverside's Department of Entomology. Pest identification was subsequently confirmed by the California Department of Food and Agriculture.

Wilson is now working with Jhalendra Rijal, UC integrated pest management advisor, North San Joaquin Valley; David Haviland, UCCE farm advisor, Kern County; and other UCCE farm advisors to conduct a broader survey of orchards throughout the San Joaquin Valley to determine the extent of the outbreak.

To date, almond or pistachio orchards infested by carpophilus beetle have been confirmed in Stanislaus, Merced, Madera and Kings counties, suggesting that the establishment of this new pest is already widespread. In fact, some specimens from Merced County were from collections that were made in 2022, suggesting that the pest has been present in the San Joaquin Valley for at least a year already.

“It has likely been here for a few years based on the damage we've seen," Rijal said.

This invasive beetle overwinters in remnant nuts (i.e. mummy nuts) that are left in the tree or on the ground following the previous year's harvest. Adults move onto new crop nuts around hull-split, where they deposit their eggs directly onto the nut. The larvae that emerge feed on the developing kernels, leaving the almond kernel packed with a fine powdery mix of nutmeat and frass that is sometimes accompanied by an oval-shaped tunnel.

Carpophilus beetle has been well-established in Australia for over 10 years, where it is considered a key pest of almonds. More recently, the beetle was reported from walnuts in Argentina and Italy as well. Carpophilus truncatus is a close relative to other beetles in the genus Carpophilus, such as the driedfruit beetle (C. hemipterus) that is known primarily as a postharvest pest of figs and raisins in California.

Monitoring for carpophilus beetle is currently limited to direct inspection of hull split nuts for the presence of feeding holes and/or larvae or adult beetles. A new pheromone lure that is being developed in Australia may soon provide a better monitoring tool for growers, PCAs and researchers.

“We're lucky to have colleagues abroad that have already been hammering away at this pest for almost a decade,” said Haviland. “Hopefully we can learn from their experiences and quickly get this new beetle under control.”

The ability to use insecticides to control carpophilus beetle remains unclear. The majority of the beetle's life cycle is spent protected inside the nut, with relatively short windows of opportunity available to attack the adults while they are exposed. The location of the beetles within the nut throughout most of their life cycle also allows them to avoid meaningful levels of biological control.

In the absence of clear chemical or biological control strategies, the most important tool for managing this beetle is crop sanitation.

“Given that this pest overwinters on remnant nuts, similar to navel orangeworm, crop sanitation will be fundamental to controlling it,” Wilson said. “If you needed another reason to clean up and destroy mummy nuts – this is it.”

In Australia, sanitation is currently the primary method for managing this pest. And here in California, new research and extension activities focused on carpophilus beetle are currently in the works.

“It's important that we get on top of this immediately,” said Wilson. “We're already starting to put together a game plan for research and extension in 2024 and beyond.”

If you suspect that you have this beetle in your orchard, please contact your local UC Cooperative Extension farm advisor (https://ucanr.edu/About/Locations/), County Agricultural Commissioner (https://cacasa.org/county/) and/or the CDFA Pest Hotline (https://www.cdfa.ca.gov/plant/reportapest/) at 1-800-491-1899.

Researchers create app to help drones improve farm efficiency

When flown at the right times, drones can help farmers adapt to a changing climate

Researchers at the University of California, Davis, have developed a web application to help farmers and industry workers use drones and other uncrewed aerial vehicles, or UAVs, to generate the best possible data. By helping farmers use resources more efficiently, this advancement could help them adapt to a world with a changing climate that needs to feed billions.

Associate Professor Alireza Pourreza, director of the UC Davis Digital Agriculture Lab and postdoctoral researcher Hamid Jafarbiglu, who recently completed his doctorate in biological systems engineering under Pourreza, designed the When2Fly app to make drones more proficient and accurate. Specifically, the platform helps drone users avoid glare-like areas called hotspots that can ruin collected data.

Drone users select the date they plan to fly, the type of camera they are using and their location either by selecting a point on a map or by entering coordinates. The app then indicates the best times of that specific day to collect crop data from a drone.

Jafarbiglu and Pourreza, who is also a UC Cooperative Extension specialist of agricultural mechanization, said that using this app for drone imaging and data collection is crucial to improve farming efficiency and mitigate agriculture's carbon footprint. Receiving the best data — like what section of an orchard might need more nitrogen or less water, or what trees are being affected by disease — allows producers to allocate resources more efficiently and effectively.

"In conventional crop management, we manage the entire field uniformly assuming every single plant will produce a uniform amount of yield, and they require a uniform amount of input, which is not an accurate assumption," said Pourreza. "We need to have an insight into our crops' spatial variability to be able to identify and address issues timely and precisely, and drones are these amazing tools that are accessible to growers, but they need to know how to use them properly."

Dispelling the solar noon belief

In 2019, Jafarbiglu was working to extract data from aerial images of walnut and almond orchards and other specialty crops when he realized something was wrong with the data.

"No matter how accurately we calibrated all the data, we were still not getting good results," said Jafarbiglu. "I took this to Alireza, and I said, 'I feel there's something extra in the data that we are not aware of and that we're not compensating for.' I decided to check it all."

Jafarbiglu pored through the 100 terabytes of images collected over three years. He noticed that after the images had been calibrated, there were glaring bright white spots where they were supposed to look flat and uniform.

But it couldn't be a glare because the sun was behind the drone taking the image. So Jafarbiglu reviewed literature going back to the 1980s in search of other examples of this phenomenon. Not only did he find mentions of it, but also that researchers had coined a term for it: hotspot.

A hotspot happens when the sun and UAV are lined up in such a way that the drone is between the viewable area of the camera's lens system and the sun. The drone takes photos of the Earth, and the resulting images have a gradual increase in brightness toward a certain area. That bright point is the hotspot.

The hotspots are a problem, Jafarbiglu said, because when collecting UAV data in agriculture, where a high level of overlap is required, observed differences in the calibrated images need to come solely from plant differences.

For example, every plant may appear in 20 or more images, each from varying view angles. In some images, the plant might be close to the hotspot, while in others it may be situated further away, so the reflectance may vary based on the plant's distance from the hotspot and spatial location in the frame, not based on any of the plant's inherent properties. If all these images are combined into a mosaic and data are extracted, the reliability of the data would be compromised, rendering it useless.

Pourreza and Jafarbiglu found that the hotspots consistently occurred when drones were taking images at solar noon in mid-summer, which many believe is the best time to fly drones. It's an obvious assumption: the sun is at its highest point above the Earth, variations in illumination are minimal, if not steady and fewer shadows are visible in the images. However, sometimes that works against the drone because the sun's geometrical relationship to the Earth varies based on location and the time of year, increasing the chance of having a hotspot inside the image frame when the sun is higher in the sky.

"In high-latitude regions such as Canada, you don't have any problem; you can fly anytime. But then in low-latitude regions such as California, you will have a little bit of a problem because of the sun angle," Pourreza said. "Then as you get closer to the equator, the problem gets bigger and bigger. For example, the best time of flight in Northern California and Southern California will be different. Then you go to summer in Guatemala, and basically, from 10:30 a.m. to almost 2 p.m. you shouldn't fly, depending on the field-oriented control of the camera. It's exactly the opposite of the conventional belief, that everywhere we should fly at solar noon."

Grow technology, nourish the planet

Drones are not the only tools that can make use of this discovery, which was funded by the AI Institute for Next Generation Food Systems. Troy Magney, an assistant professor of plant sciences at UC Davis, mainly uses towers to scan fields and collect plant reflectance data from various viewing angles. He contacted Jafarbiglu after reading his research, published in February in the ISPRS Journal of Photogrammetry and Remote Sensing, because he was seeing a similar issue in the remote sensing of plants and noted that it's often ignored by end users.

"The work that Hamid and Ali have done will be beneficial to a wide range of researchers, both at the tower and the drone scale, and help them to interpret what they are actually seeing, whether it's a change in vegetation or a change in just the angular impact of the signal," he said.

For Pourreza, the When2Fly app represents a major step forward in deploying technology to solve challenges in agriculture, including the ultimate conundrum: feeding a growing population with limited resources.

"California is much more advanced than other states and other countries with technology, but still our agriculture in the Central Valley uses technologies from 30 to 40 years ago," said Pourreza. "My research is focused on sensing, but there are other areas like 5G connectivity and cloud computing to automate the data collection and analytics process and make it real-time. All this data can help growers make informed decisions that can lead to an efficient food production system. When2Fly is an important element of that."

This article was originally published on the UC Davis College of Engineering News page.

From Sharqia to Rome to Fresno: Renowned irrigation expert comes to UC ANR

Atef Swelam begins as director of Kearney and West Side Research and Extension Centers

In the fields around the Egyptian city of Minya Al-Qamh, “port of wheat” in Arabic, a boy rubbed his eyes wearily as he helped his father irrigate their crops at 2 a.m. – when they could access the scarce water that reached their farm, located at the tail end of the canal. The family, which had been farming the land around the village of Sharqia for many generations, barely had enough water to sustain their wheat and vegetables.

Swatting in the darkness at the incessantly biting mosquitoes, a young Atef Swelam made a vow.

“I said: ‘I will do my best to not let anyone suffer like I have suffered, like my father suffered – I will help to improve the lives of others,'” recalled Swelam, who went on to become an irrigation engineer improving water-use efficiency.

During the World Food Forum (Oct. 16-20), Swelam was recognized by the United Nations' Food and Agriculture Organization as a “Water and Food Hero” for developing irrigation techniques that save water and boost yields across the Nile Delta and beyond.

Swelam started on Aug. 10 as director of both the Kearney Agricultural Research and Extension Center in Parlier and the West Side REC in Five Points. Both facilities are part of a network of centers operated by University of California Agriculture and Natural Resources.

“Our organization, and more importantly the communities we serve in the Central Valley and across California, are so fortunate that Atef has joined our team,” said Brent Hales, UC ANR associate vice president for research and Cooperative Extension. “He brings not only a record of truly impactful research and innovation but a genuine passion for learning the needs of people, working with them and developing collaborative, science-based solutions.”

Making a difference in the lives of people

After earning his master's degree in land and water management from the Mediterranean Agronomic Institute of Bari in Italy, Swelam returned to Egypt for his Ph.D. in agricultural engineering at Zagazig University. There, he advanced to become a professor of irrigation and drainage engineering in 2019; he was also a senior scientist and research team leader with the International Center for Agricultural Research in the Dry Areas (CGIAR-ICARDA). Most recently, Swelam was the agricultural research officer of the U.N.-FAO's Office of Innovation in Rome.

Swelam explained that the mandate, function, mission and vision of UC ANR's research and extension network – and its strong reputation for making an impact through co-creation with clientele – attracted him to this position in California.

“I'm always looking to make a difference on the ground and in the lives of people,” he said. “If you look at the locations where all RECs are located, they are inside the communities themselves, and in the heart of the farming system.”

Swinging between Kearney and West Side RECs, Swelam said he feels he works in an empowering environment, created and supported by the leadership as well as by the staff at both centers – “a dynamic is which hard to find elsewhere.”

Darren Haver, recently named director of the statewide system of RECs, said he will work with Swelam to explore ways to secure the resources that the Kearney and West Side teams need.

“Atef brings a wealth of experience in conducting research as well as working to elevate and amplify the research and outreach of others,” said Haver, formerly the director of South Coast REC in Irvine. “He clearly is committed to making a difference locally, nationally and globally and we are excited to support him as his vision for these two RECs evolves.”

Being a farmer and a scientist, Swelam feels he is on the same wavelength with both of the RECs' clientele groups – researchers and growers. In his first months on the job, Swelam said he will get to know the needs of the grower community and the researchers at the RECs.

“What I like most about this job is that the REC system, with its research for development approach, supports the scientists, who are in turn supporting the farmers and communities that are on the front line in achieving food and nutrition security,” he explained.

When tailoring solutions to meet local conditions, Swelam added that it's essential that community members are involved so they feel a sense of ownership and are committed to sustaining its impact beyond the time limits of a research or extension project.

Innovative irrigation technique used worldwide

A prominent example of Swelam's community-based work is his long-term mechanized raised-bed (MRB) irrigation program, the technology for which he has garnered numerous international honors.

While he was a researcher at the CGIAR-ICARDA, Swelam led several projects between 2010 and 2020 to study new soil and water practices at farm level. Through a project at his home village, he developed a cost-effective, small-scale machine to enable growing wheat on raised beds. This was in contrast to flat flooded land – the traditional, labor- and resource-intensive method that produced irrigation inefficiencies and caused shortages for downstream farmers like his father, Haj Ibrahim.

With MRB, precisely placed trenches between the raised beds would hold exactly the amount of water the adjacent crops need and thus leave more water for all. And while the technique seemed promising, Swelam had to convince skeptical farmers to adopt the practices – including his neighbors and his own father.

“He was very resistant to me in the beginning, because this was the first time ever in Egypt using raised beds for wheat cultivation…he even tried to convince people not to follow me,” Swelam said, with a chuckle.

So father and son divided their fields, with one half planted and irrigated using traditional methods, and the other using the raised-bed approach. Gradually, as MRB began to prove its worth, Haj Ibrahim warmed to the technology and became an active collaborator on the research – even helping the scientist when he was puzzled by experiment results.

“My father was my mobile library,” Swelam said. “He was illiterate – he had never been in a school – but his thinking and knowledge about the real agriculture and farming system were much better than those of a professor like me!”

After the initial research trials produced successes in his village and the larger governorate (a political division within Egypt), the technique was replicated in other governorates across the country – which then attracted the attention of other nations and international organizations.

Overall, Swelam said, the technology helped the growers reduce applied water by 25% and cut farming costs by 25%, while boosting fertilizer use efficiency by 30% and increasing yield by 25%.

Today, MRB is applied by more than 2 million farmers in the Middle East and North Africa to a variety of crops and is recognized as a good agricultural practice by the U.N. Food and Agriculture Organization.

“The biggest recognition and reward for me out of this impactful innovation is seeing the smiles on the faces of farmers,” Swelam said.

Spreading best practices across San Joaquin Valley and beyond

Swelam said he hopes to see similarly positive results for farmers here in California with a wide range of innovations. He and other researchers at Kearney and West Side RECs will continue to make sure that the science and knowledge generated at the centers reach farmers. He added that partnering with local growers to optimize their on-farm practices is crucial on a host of issues, from pest management to water conservation.

“Whatever we do to improve supply management at system level, if the water is not used efficiently at farm level, then we lose everything we had achieved at that macro level,” he explained.

Swelam added that investing intensive time and effort in developing practical, cost-effective solutions will pay off in the long run as they become naturally adopted across the grower community.

“Farmers are very clever and skilled with their farming systems,” he said. “When they see or get benefits from something, they promote it among themselves.”

Swelam's father was one example. After leading the resistance against mechanized raised beds initially, he eventually became its most vocal proponent.

“He became the biggest promoter for this technology; he even promoted it on local and international TV and radio programs,” Swelam said. “I was proud of my father.”

Haj Ibrahim died in 2017 and Swelam continues to pay tribute to his father through his life's work on research and extension – inspired by their long struggles to bring water to their crops, and the shared triumph of their new techniques.

USDA awards $2 million to study livestock grazing in organic orchards

UC, The Organic Center, University of Rhode Island partner on $3.5m food-safety study for organic produce growers

Grazing sheep and other livestock can help convert cover crops to fertilizer for orchard crops. To develop best management practices, the University of California and The Organic Center are collaborating on research to help organic orchard growers safely incorporate livestock grazing into their farming practices. The project is funded by a $2 million grant recently awarded through the U.S. Department of Agriculture's Organic Agriculture Research and Extension Initiative research program.  

Interest in grazing livestock on cover crops in nut orchards has increased in recent years. However, research is needed to determine the best way to improve soil health and pest suppression, and to address concerns about food-borne pathogens and food safety.   

“Organic farmers typically follow the USDA National Organic Program standards for raw animal manure, waiting 90 to 120 days between incorporating raw manure into the soil and harvesting the crop,” said Alda Pires, UC Cooperative Extension urban agriculture and food safety specialist in the School of Veterinary Medicine at UC Davis.

“Little research has been conducted to verify adequate waiting periods to reduce contamination risks in integrated crop-livestock production systems,” she said. “This research will fill the knowledge gap and facilitate the development of science-based food safety guidelines for grazing small ruminants in orchards.” 

For this four-year project, “Influence of Orchard Grazing on Soil Health and Pest Control While Mitigating Food Safety Risk,” the scientists will study organic almond, walnut and pistachio orchards in two distinct nut-growing regions in California – the Sacramento Valley and San Joaquin Valley. The scientists will assess the effects of livestock grazing of cover crops on bacteria populations, soil health, pest control and economics.

Building soil health 

“Growers have consistently raised the need for more information on grazing impacts on nutrient availability during tree growth, as well as potential to build up the biological, physical and chemical pillars of soil health,” said Amelie Gaudin, associate professor and endowed chair of agroecology in the UC Davis Department of Plant Sciences.

Livestock grazing may provide an opportunity to quickly enhance the amount of nitrogen that can be used by plants and microbes when the cover crop is terminated. “This project will help growers develop nitrogen budgets for these more diversified systems and quantify additional benefits and potential tradeoffs for soil health – such as compaction and salinity – to guide the development of place-based best management practices,” Gaudin said.   

Pest management 

Houston Wilson, UC Cooperative Extension specialist in the Department of Entomology at UC Riverside, will be studying the effects of livestock grazing on orchard pests.

“Navel orangeworm, or NOW, is by far the most destructive pest of almonds and pistachios,” Wilson said. “These moths overwinter in unharvested nuts in the orchard, and so removal and destruction of remnant nuts over the winter is the foundation of NOW control. While farmers typically use machinery to do this, grazing with animals may present a unique alternative that is more cost-effective and provides additional ecosystem benefits, such as soil health and weed control.” 

Outreach to farmers

As part of the project, The Organic Center was awarded $75,000 to work with UC Agriculture and Natural Resources to direct national extension and education outreach activities. These will include a social media campaign, webinars and educational sessions and a technical report for growers.  

“There is an increasing interest from organic farmers to learn how to incorporate livestock into their operations to gain better soil health and fertility,” said Amber Sciligo, director of science programs at The Organic Center.  

“This research is very exciting because it will holistically explore the potential risks and benefits of livestock not just to soil health, but also pest control – a truly interdisciplinary project that matches the whole system of the organic farm.” 

Produce food-safety management tools 

For another organic food-safety project, Pires and Sciligo will be working with Patrick Baur, professor of Sustainable Agriculture and Food Systems at the University of Rhode Island.

The University of Rhode Island and The Organic Center received $3.5 million from USDA's Organic Agriculture Research and Extension Initiative research program for the new organic food-safety education project. 

“We're going to develop a new food safety management tool designed specifically for organic soil amendments,” said Baur, who is leading the project. “We're also going to develop a suite of new communication and training tools aimed at the entire fruit and vegetable sector to build a shared language between organic agriculture and the food safety community and help them work better together.”  

As part of the produce project, Pires of UC Davis was awarded $1.16 million to conduct a risk assessment and create a publicly accessible dashboard to meet the specific needs of organic growers operating at different scales, under different cropping systems, in different regions.

Also participating in this project will be Beatriz Martinez Lopez, professor in the School of Veterinary Medicine at UC Davis, and Abhinav Mishra and Govindaraj Dev Kumar of the University of Georgia.  

‘Farm to corrections’ project provides fresh produce to people in prison, boosts California growers

Nutrition Policy Institute, Impact Justice, ChangeLab Solutions partner with California Department of Corrections and Rehabilitation

Serving slices of watermelon on the Fourth of July is a long-standing tradition at some facilities within the California Department of Corrections and Rehabilitation. But this July, there was something different about the watermelon offered to the approximately 8,000 residents at California State Prison Solano, California Medical Facility and Folsom State Prison.

It was juicy. It was sweet. It was “scrumdiddlyumptious,” according to one resident. And it was grown on a California family farm.

The three institutions are part of a “farm to corrections” project, Harvest of the Month, which aims to serve seasonal, locally grown produce to people who are incarcerated in California, while opening new opportunities for California farmers.

“We appreciate that someone cares enough to introduce this program that gives us something new,” said Jason Romero, a California State Prison Solano resident. “We look forward to what's coming in the future – California has the best stuff, right? – and hopefully we get other varieties of stuff.”

The program – bringing together the Nutrition Policy Institute, the nonprofit Impact Justice, and ChangeLab Solutions in collaboration with CDCR – was officially launched with the watermelon delivery in July. Pluots followed in August, and Bartlett pears were delivered in September.

“It's a ‘multiple wins' kind of an effort,” said Wendi Gosliner, the NPI principal investigator on the California Department of Food and Agriculture specialty crop block grant supporting the project. “The funding is available because the state is looking for state partners to purchase and expand the markets for California-grown fruits and vegetables. And we know that getting more of those fruits and vegetables on the plates of people who are incarcerated would be a huge bonus for them.”

California State Prison Solano resident Patrick Range said that, after tasting pluots for the first time through the program, the plum-apricot hybrid is now one of his favorites.

“I think I had five of them that day – and I'm waiting for them to have them again so I can get more; they were so good,” Range said. “It's something I'd never experienced, in the outside world or in prison.”

With rave reviews from residents and staff alike, CDCR – the State of California's biggest purchaser of food – is planning to roll out Harvest of the Month to all 33 of its adult facilities within the next two years.

“Food brings individuals together and introducing new products can give those in the care of CDCR something to talk about, as well as look forward to,” said Lance Eshelman, CDCR's departmental food administrator.

Improving conditions for people within correctional institutions is core to the mission of Impact Justice, which is working with partner organizations across the U.S. to bring fresher, more nutritious food to facilities, in support of residents' physical, mental and emotional health.

“We really want to prioritize the holistic well-being of an individual to help ensure that once they come home from incarceration, they are in a place where they are ready to actually contribute back to society,” said Heile Gantan, program associate with the Food in Prison project at Impact Justice.

Range said that enjoying the fresh produce – and learning more about its nutritional value – is helping him live a healthier, more energized, and hopefully longer life.

“I was a kid that didn't like vegetables; I didn't want nothing to do with vegetables…[but] as an adult, being 46 years of age, I want this for myself – I want to be able to tell someone else, to teach someone else about what I experienced when getting these fruits and vegetables that helped that nutritional factor,” he said.

In addition, Gosliner noted that early research suggests better food can benefit not only the well-being of residents but also of staff, with a calmer and safer work environment.

Partnership built on shared values, priorities

Gosliner and Ron Strochlic, academic coordinator at NPI, saw an opportunity to support “farm to corrections” work through a CDFA block grant, which aims to boost the purchase of California-grown specialty crops.

“CDCR is the state's largest single purchaser of food, so they're a natural place to consider ways to improve food systems,” said Gosliner, who was awarded the grant in 2020 to work with partners to research and develop pathways that encourage CDCR procurement of California produce, as well as nutrition programs for formerly incarcerated individuals. The project produced a report summarizing the opportunities and challenges in bringing more California-grown produce to the state's prison system.

The staff at Impact Justice appreciated that the NPI team brought not only research and evaluation acumen to the partnership but also an abiding concern for the people inside correctional facilities.

“Our grant funding was focused on simply increasing access to and consumption of California-grown specialty crops in CDCR prisons, but our team was very much in alignment around values and really focusing on the health and well-being of residents – highlighting and amplifying residents' experiences and voices,” said Leslie Soble, senior program manager of the Food in Prison Project.

Gantan echoed that sentiment, adding that NPI – which is under the University of California Agriculture and Natural Resources umbrella – also contributed its familiarity with regional food systems, particularly food hubs across the state.

According to the NPI team, engaging food hubs – organizations that aggregate, distribute and market food products from local producers – was a logical way to make a “farm to corrections” match.

“The majority of CDCR facilities are located in rural, agricultural regions, so to us, it was kind of a no-brainer to connect those facilities with the local communities and local farmers in the area,” Strochlic explained.

For the Harvest of the Month project, the partners teamed up with Spork, a Davis-based, mission-driven food hub that sources from growers across Northern California. Spork also aggregates the fresh produce from local farmers and delivers it to participating CDCR facilities each month.

“The farmers are very excited to see the change in the systems at CDCR in food and nutrition and what they're offering to the residents – and they're excited for the potential that this has for a larger, more consistent market,” said Hope Sippola, co-owner of Spork, which emphasizes working with underserved farmers as part of its mission. “We really needed to dig deep to figure out how to successfully implement this change of CDCR purchasing from large distributors to a food hub who sources from local family farms.”

Carolyn Chelius, an NPI project policy analyst and project manager of NPI's Farm-to-Corrections work, said the team hopes, as Harvest of the Month scales up, that they will be able to make Spork's generous investment of time and resources pay off.

“Our ultimate goal is to be able to benefit Spork and help them with their business, but it's been really helpful to have them as champions – people who are really interested in the mission,” Chelius said. “I don't know if this project would have been possible otherwise.”

California produce purchasing requirement helped spur project

Of course, cultivating a strong working relationship with CDCR also was essential. On the heels of AB 822 (a policy requiring state agencies to buy California-produced food over other options if the price differential is 5% or less), another powerful impetus for CDCR was the passage of AB 778 in 2022. It requires that, by the end of 2025, at least 60% of food purchased by state-run institutions must be grown or produced in California.

Eshelman, the departmental food administrator, said the law has challenged CDCR to look closely at its statewide menus and identify items that could be sourced from California growers and producers. He said that, through this project, food service team members have gained new knowledge about food production in the state, such as variability due to regional differences and weather trends.

“The Harvest of the Month program provides an additional resource, and places CDCR in contact with subject matter experts such as food hubs and local growers who can provide valuable insight into what to expect in terms of California-grown or produced food items and their accessibility,” Eshelman explained, adding that NPI and Impact Justice also have been vital resources for CDCR.

Gosliner acknowledges the challenges in retooling processes and procedures across CDCR, the second-largest correctional system in the U.S. With nearly 100,000 incarcerated individuals in its care, CDCR purchases more than $163 million in food each year.

“It's a big ask of a major state institution to reconsider some of their systems for doing something that they do every day: providing food to the people who are incarcerated,” Gosliner said. “It's revolutionary for them to rethink who they're sourcing from, to rethink how much fresh produce they're serving, to rethink the variety of that produce – it's a big lift for CDCR.”

‘This is really the beginning'

As CDCR brings Harvest of the Month to more institutions across the state, the collaborators anticipate that the logistics will smooth out – and that more farmers will be willing to participate.

“If we can add some more facilities and increase the volume, we have a better chance of making it work for growers, so we're really hoping that we can continue with this food hub model,” Strochlic said. “For us it's really important to be able to source from small and medium growers as well.”

And while flyers describing the health benefits of each month's “Harvest” item are currently distributed at the participating facilities, the partners hope they can provide additional nutrition education opportunities for the residents – during their time inside and after incarceration (like in the workshops held across the state).

Soble and Gantan of Impact Justice also noted that all members of the project team have been learning together, exploring “new territory” in growing this innovative partnership.

“I know personally I've learned so much from the NPI folks just about policy related to food and nutrition in California and about different nutrition interventions,” Soble said. “To me, it's been a very valuable and positive partnership.”

Gosliner said that building on those relationships will be crucial, as the movement to improve the services provided to incarcerated individuals continues to gain momentum in the state.

“This is really the beginning of California's work,” she said. “Even though we grow so much of the food here, there are other states in the country that are further along than we are in California. This is really the launch.”

Funding for this project was made possible by the U.S. Department of Agriculture's (USDA) Agricultural Marketing Service through grant AM200100XXXXG032. Its contents are solely the responsibility of the authors and do not necessarily represent the official views of the USDA.

Funds from UC Sustainable Agriculture Research and Education Program's Small Grants Program also helped support this project.

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