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Posts Tagged: FOOD IT

Partners unveil first on-farm robotics incubators

At Reservoir Farms, startups will work side-by-side with growers to test their technologies in real-world environments.

Opening in Salinas and Merced in 2025, Reservoir Farms will drive ag innovations in automation robotics

The Reservoir, a nonprofit building tech incubators across California, and partners Western Growers Association, University of California Agriculture and Natural Resources, Merced College, Hartnell College and venture capital firm HawkTower have announced the creation of the first-ever on-farm robotics incubators, Reservoir Farms.

Unveiled during a press conference at the FIRA USA 2024 robotics conference in Woodland, Reservoir Farms are set to open in the Central and Salinas Valleys in early 2025. This pioneering initiative significantly shifts how agricultural technology innovates through real-world testing environments, world-class resources and critical industry partnerships.

California agriculture faces critical challenges, including labor availability and cost, import competition, increased regulation, water scarcity, and climate-related challenges, including extreme weather. These challenges have spurred significant advancements in agricultural precision, automation, mechanization, and robotics in recent years.

Despite advancements, early-stage agtech projects lack critical ecosystem support, like connecting directly with growers, testing and validating their solutions, and accessing dedicated shop space and farmland. These gaps hinder capital efficiency and the development of critical solutions that meet the agricultural sector's needs.

Initial projects at the incubators will focus on early-stage agricultural innovations in automation and robotics, including rovers and drones, that accelerate the development of breakthrough solutions to the opportunities and imperatives faced by California farms producing high-value specialty crops, such as labor shortages, profitability, and adopting climate-smart technologies.

Western Growers Association, a key advocate for advancing agricultural innovation, will provide financial and operational support as an anchor partner.

Anchor educational partners like UC ANR, Hartnell College, and Merced College will play a crucial role in innovation and workforce development, preparing the next generation of agricultural researchers, professionals, and innovators to drive the future of farming in California.

Danny Bernstein, CEO of the Reservoir, speaks at the Reservoir Farms press conference on Oct. 23 at FIRA USA, while Gabe Youtsey of UC ANR (left) and Walt Duflock of Western Growers (middle) look on. Photo by Mike Hsu

HawkTower, a venture capital firm investing in early-stage startups developing breakthrough innovations for California's environmental and industrial imperatives, is also an anchor partner.

“The launch of Reservoir Farms is a critical step forward in ensuring the future resilience of California's agriculture and across the Central Coast and Central Valley,” said Danny Bernstein, CEO of the Reservoir and managing partner of HawkTower. “By placing incubators directly on the farm, we enable innovators to test, iterate, and scale solutions in real-world conditions as a more immediate path to advance farming communities.”

A new model to incubate agtech innovation

The idea for Reservoir Farms emerged from extensive industry research and consultations with over 50 organizations in the specialty crop sector. Key insights uncovered critical gaps in startups' access to real-world testing environments, shop space, and direct relationships with growers – factors severely hindered capital efficiency and posed a formidable barrier to innovation.

“Our goal is to eliminate the friction points that have historically slowed down the development of new agtech solutions,” said Walt Duflock, senior vice president of innovation at Western Growers Association. “Reservoir Farms offers a new model, where startups can work side-by-side with growers to test their technologies, iterate in a low-stakes environment, and build scalable solutions to improve agriculture's operations.”

Initiative to support thriving agtech ecosystem and job creation

The Reservoir Farms initiative also reflects a broad-based collaboration between key educational institutions, industry players, and local communities to ensure the next generation of agricultural professionals is equipped with the skills needed to support the region's growing agtech sector.

Supporting partners include Central Coast Small Business Development Center (SBDC), Communities Organized for Relational Power in Action (COPA), Digital NEST, Farmhand Ventures, Merced County Farm Bureau, Milano Technical Group, Monterey Bay DART (Drone Automation & Robotics Technology), Monterey Bay Economic Partnership, Monterey County Farm Bureau, Tesserakt Ventures, and The VINE.

“As robotics and automation become more integral to California agriculture, it's essential to have facilities like Reservoir Farms embedded within the farming community,” said Gabriel Youtsey, chief innovation officer at UC ANR. “By bridging the gap between lab-based research and real-world application and accelerating tech transfer, Reservoir Farms can help build the workforce and technology needed to address the critical challenges on the farm, from labor shortages to climate change.”

Focus on specialized services and real-world testing in California's agricultural heartland

Reservoir Farms will open its first two locations in Salinas Valley and Merced in the first quarter of 2025. Participants can lease testing fields and shop space without the burden of multi-year leases, giving them the flexibility needed to scale. The incubators will offer fully equipped R&D workshops, secure storage for expensive equipment, and customized, pre-planted specialty crop fields for testing.

These facilities will be complemented by Reservoir Farms' co-working spaces, meeting rooms, and a robust demo day schedule designed to connect startups with growers, investors, and other key stakeholders.

In addition, the Western Growers Association's validation process will provide startups with a quantitative “scorecard” that offers crucial metrics on scalability, efficacy, and financial viability. This validation, combined with UC ANR's field testing, will help startups refine their products and receive a critical stamp of approval that builds trust with growers and ensures a smoother path to commercialization.

Media Contact:

Jennifer Goldston
AgTech PR for the Reservoir
816-260-0040
jennifer@agtechpr.com

Posted on Wednesday, October 23, 2024 at 3:22 PM
  • Author: Jennifer Goldston
Tags: agtech (0), automation (0), FIRA (0), FIRA USA (0), incubator (0), innovation (0), on-farm (0), robotics (0), The VINE (0)
Focus Area Tags: Agriculture, Economic Development, Food, Innovation

UC ANR project to help underserved farmers in SoCal with land ownership

Chandra Richards (left) and Joyce Nkhoma (right). All photos by Saoimanu Sope.

San Diego County has more than 5,000 small farms but less than 2% are operated or owned by Black, indigenous, or people of color – including those of Asian, Hispanic or Native Hawaiian/Pacific Islander descent, according to the 2022 Ag Census.

The reasons vary, but historically, multiple marginalized communities of color have not received the same opportunities or support for land ownership or management as their white counterparts.    

Chandra Richards, University of California Cooperative Extension land equity academic coordinator for the Southern California region, is identifying barriers to equity when it comes to addressing land access, tenure, management and opportunities to increase the diversity of land managers and land ownership in the region.

Richards is the principal investigator for the Climate Action and Land Equity (CALE) project administered through UC Agriculture and Natural Resources and funded by the Department of Conservation. CALE aims to engage historically underrepresented communities in coalition building, capacity assessment and climate action planning. CALE elevates knowledge about the challenges and opportunities to land access and management for a diversity of land managers.

Some of the crops grown at Hukama Produce farm in Ramona.

Among the challenges is land tenure, an established agreement between a landowner and tenant, outlining the purpose and use of the land over a period of time. However, when landowners decide to sell their land, these agreements are at risk of being null and void, forcing the tenants to renegotiate or discontinue their operation.

Land tenure leases for under five years are considered short-term, which are common in Southern California. For small, new and under-resourced farmers, landowner turnover doesn't just threaten their business plan but their livelihood.

For small farmer Byron Nkhoma, who leases land in Ramona to grow leafy greens and vegetables, the possibility of losing land is a constant worry. Since 2015, Nkhoma and his wife, Joyce, have been renting four of 20 acres to establish Hukama Produce. Over nine years, they have had two landowners. Before the land was sold to his current landowner, Nkhoma said he considered buying land, but the process proved more challenging than he thought.

Byron Nkhoma welcomes the Western Extension Leadership Development participants to his farm, Hukama Produce.

“What it takes for someone like Byron to find a place to farm and establish a food system is an extremely involved process,” said Richards. “It's not just learning how to obtain land, it's also about managing that land so it can be used for years and generations to come.”

Originally from Zimbabwe, Nkhoma is adamant about taking care of the land he leases and has applied knowledge from his home to ensure resilience. Hukama Produce prides itself in improving environmental health through sustainable farming practices such as compost and mulch application, drip irrigation and low till. An important pillar of the CALE project includes building capacity and providing technical assistance toward land conservation and climate resiliency.

In addition to land tenure, money and time are stressors for small farmers. When they are not working on the farm, Nkhoma and his wife are researching and applying for grants to improve their soils and protect their crops from pests. However, many grants for which Hukama Produce is eligible often have pressing deadlines that demand their immediate attention – cutting into valuable time that could be spent tending to the land or selling at farmer's markets.

Two of Hukama's goals include building and sustaining trust in the market and growing their operation. By partnering with Richards, Hukama Produce has direct access to technical assistance focused on grant writing and conservation to increase ecosystem health and build tenure.

Nkhoma demonstrates how he manages gophers on his farm.

Agricultural land tenure is the arrangement, rights, and responsibilities centered around use, management, and ownership of agricultural land and resources. Building land tenure means that farmers have a stable place to grow their crops and build environmental sustainability without risk of having to move their operations.

While the CALE project boosts support for historically underserved community members hoping to own or manage land, it prioritizes land use for food production as a reinvestment into the greater community.

Eager to bring realities like Nhkoma's to light, Richards partnered with Keith Nathaniel, UCCE director for Los Angeles County, who co-coordinated the Western Extension Leadership Development conference held in San Diego the week of Sept. 23-27. WELD unites Cooperative Extension faculty, agents, advisors, educators and specialists from the western region of the United States for a two-year leadership development program.

While in San Diego, WELD participants joined Richards for a tour of Hukama Produce and learned directly from Nkhoma about opportunities and threats as a small farmer. The tour ended with participants in a circle, sharing how their professional roles can offer support to Hukama Produce and other small farms.

“We grow food so that we can feed the community,” said Nkhoma. “When we feed others, we build relationships. That's what ‘hukama' means – to grow relationships.”

Western Extension Leadership Development participants tour Hukama Produce in Ramona.

If you operate or know of a small farm in Southern California and would like to be involved with or receive regular updates about the CALE project, please contact Chandra Richards at cmrichards@ucanr.edu.

If you are interested in applying for the Land Equity Project Manager position, please visit https://ucanr.edu/About/Jobs/?jobnum=2894 for details. 

Posted on Tuesday, October 8, 2024 at 1:22 PM
Focus Area Tags: Agriculture, Economic Development, Environment, Food

Butte County first graders enjoy ‘ricetastic’ day at local farm

A Butte County youngster is all smiles as he gets an up-close look at a harvester during Ricetastic Day at Schohr Ranch. Photo by Mike Hsu

UC Cooperative Extension advisors, educators join growers in showcasing rice production

When Tracy Schohr volunteered in her son's pre-K class a couple years ago, she was stunned to find out that only two of the 20 children had ever been around a tractor. And this was in the rural Butte County community of Gridley, in the heart of California's rice-growing region.

Seeking to introduce more young children to agriculture, Schohr – the University of California Cooperative Extension livestock and natural resources advisor for the area – and her friend Lisa Donati created an event to showcase rice farming.

After the debut of “Ricetastic Day” last year with about 140 students from Gridley in attendance, this year's event on Sept. 19 attracted more than 240 schoolchildren – this time from across south Butte County.

UC Cooperative Extension advisor Tracy Schohr narrates as she describes the stages of rice production, illustrated by photos held up by Gridley FFA volunteers. Photo by Mike Hsu

First graders from McKinley Primary School in Gridley, Manzanita Elementary School, Biggs Elementary School and Richvale Elementary School – along with their teachers and many family members – enjoyed hands-on experiences at Schohr's rice and cattle ranch.

“There's a dwindling population that produces the food that we eat across America, so how can we have more people know, appreciate and love agriculture if we don't give them that opportunity?” said Schohr. “That's what this day is really about – to teach them about rice, to teach them about their community, how healthy rice can be, and how the farming and ranching can also create habitat for wildlife. It's all-encompassing.”

Event stations share different aspects of rice

Schohr, who grew up on the family ranch in Gridley, remembers coming with her McKinley schoolmates for a visit. But those field trips had comprised only lunch and a quick “drive-through” tour of the historic farming operation.

For Ricetastic Day, however, Schohr organized – with generous help from local growers and community partners – a more comprehensive half-day of activities. After her brother, Ryan Schohr, welcomed the participants to the family farm, the students formed groups that were led by Gridley FFA youth on a rotation through a variety of stations.

UCCE rice farming systems advisor Luis Espino shows students the differences between rough rice, brown rice and white rice. Photo by Evett Kilmartin

At the milling station, Luis Espino, UCCE rice farming systems advisor, demonstrated how his mini mill machines remove the husks from rough rice to make brown rice, and then polish away the bran layer to make white rice. He had the children see and feel the difference as the rice moved through processing.

“I didn't even know brown rice existed!” exclaimed Elsie, a first grader at McKinley.

A native of Peru, Espino came to study agriculture through his lifelong fascination with biology and living things – and he said events like Ricetastic Day can inspire a similar passion in young people.

“It might spark their curiosity so that they might go into these areas of work in the future or have a career in agriculture, when they see that people do this for a living,” Espino said.

Ricetastic Day participants enjoyed making pictures with colorful dyed rice. Photo by Evett Kilmartin

Ray Stogsdill, another McKinley school alumnus, returned to Gridley after college to pursue just such a career. A staff research associate in the lab of UC Davis professor Bruce Linquist, Stogsdill manages on-farm rice variety testing across the region. He volunteered to help Schohr with Ricetastic Day by talking about some of the heavy equipment and providing his perspective for the kids.

“They drive by the fields and they don't know what's out there,” he said. “This gives them a chance to know what they're driving by, so they can say, ‘We have rice here and this is how it works; this is how it grows.' It gives them an idea of what's going on around them.”

Where rice fits within a healthy diet was the focus for the CalFresh Healthy Living, UC Cooperative Extension team, comprising nutrition educators Sunshine Hawjj, Joanna Aguilar and Kenia Estrada, as well as community nutrition, health and food security advisor Veronica VanCleave-Hunt. They talked about how rice – like other grains in that vital food group – gives people energy, and then taught the students an energetic “ricetastic” movement activity.

“Because our program is part of UC Agriculture and Natural Resources, it's important to make the connection between where our food comes from and how it gets on our plate – especially with young kids, so that we can promote value for our local agriculture and our food systems,” VanCleave-Hunt explained.

Activities spark further conversations, learning about agriculture

With rice harvest late due to late planting in the spring, Eric Waterbury of Waterbury Farms was able to take some time to attend the event. Although his family has been growing rice for three generations, he said he appreciates opportunities for the broader community to see all aspects of his work – from the equipment to the processing.

“If the kids walk away from this with one thing, I hope it's that they realize every time they have a meal, somebody was out there working hard to provide that meal,” he said. “It wasn't just the person at the grocery store that provided it for them.”

CalFresh Healthy Living, UCCE nutrition educator Sunshine Hawjj leads kids through a movement activity to demonstrate the energy that rice provides. Photo by Mike Hsu

Schohr added that Ricetastic Day was only possible through the support of the community. Butte County Farm Bureau and Natural Resources Conservation Service staff helped kids make art with colorful dyed rice; neighboring farmer Tinker Storm described how the harvester and “bankout” wagon work; and rice farmers Shelley Beck and Sue Orme read aloud “Daddy's Got Dirt: A California Rice Story,” a children's book written by a local rice grower.

With rice at the center of physical activities, arts and crafts, and science lessons for the day, the students learned a lot to take home.

“It's nice that the kids got these hands-on learning experiences,” said Ryan Schohr, “so they can go home tonight and, at the dinner table, talk about it with their parents or brothers and sisters, over dinner or over homework – and share what they learned here on the farm and about their community.”

Ricetastic Day volunteer Tinker Storm explains the header of a harvester to a group of schoolchildren. Photo by Evett Kilmartin

Rebecca Christy, a first- and second-grade teacher at Biggs Elementary, said she is excited to return to the classroom and hear from her students about all that they learned during the day.

“Every morning right now I'm seeing the big trucks going by our school, and so I'll be able to point that out to them, ‘Where are they going? What are they doing?'” she said. “I can't wait to get back to school and let them tell me about all of this.”

One of her students, Ximena, was finishing her brownbag lunch as the group watched one of the Schohr Ranch harvesters rumble over the field. Despite enjoying a rice cake and a rice cracker earlier, she said her meal was missing one thing.

“Where is my rice, Miss Christy?” she said. “I want rice!”

Posted on Thursday, September 26, 2024 at 10:00 AM
Focus Area Tags: Agriculture, Family, Food

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

Visual ID guide from UC aids in managing new almond pest

A hullsplit almond showing a large number of carpophilus beetles (Carpophilus truncatus). Photo by Jhalendra Rijal

Nut orchard hygiene key to control carpophilus beetle, say UCCE, UC Integrated Pest Management experts

Since the first reports of a new almond pest – the carpophilus beetle (Carpophilus truncatus) – came in during fall 2023, it has become clear that the beetle is widely dispersed across the San Joaquin Valley.

“My lab has identified infestations from every county in the San Joaquin Valley; we have found infestations in both almonds and pistachios, and we will likely find infestations in walnuts this fall,” said Houston Wilson, a University of California Cooperative Extension entomology specialist at UC Riverside. The California Department of Food and Agriculture has confirmed the beetle's presence in Stanislaus, Merced, Madera and Kings counties.

Historically a major threat to almond production in Australia, the beetle – as larvae and adults – feeds directly on the nut kernel. In California, some almond growers have lost 10 to 15% of their yield – a “significant economic loss,” according to Jhalendra Rijal, University of California integrated pest management (IPM) advisor for the region. Given the prominence of almonds as a commodity, even a 1% overall reduction statewide represents an approximately $70 million loss.

“This year there has been a lot more reports from PCAs [pest control advisers]; they're sending me the pictures of the damage and beetles,” said Rijal, noting that the increase is likely due to greater awareness of the pest.

To help almond growers identify the carpophilus beetle and develop management plans, Rijal, Wilson and their IPM colleagues have put together a visual ID guide for the beetle and the damage it causes, as well as telltale signs of navel orangeworm (Amyelois transitella) and ant damage. In particular, the experts would like PCAs and growers to differentiate between the carpophilus beetle and navel orangeworm, another key pest in almonds.

“Even though their way of causing damage looks more or less similar, we're dealing with two different types of insects,” Rijal explained. “One is a Lepidoptera moth [navel orangeworm], and the other one is a beetle – many of the management practices and biological controls would be different for these two different things.”

TOP: Both carpophilus beetle adults and larvae feed on the kernel and cause damage characterized by fine powdery frass and nutmeat, a white-creamy color with some webbing. Often, large numbers (more than 10) of adult and larvae are found per nut. BOTTOM: Navel orangeworm larvae cause damage characterized by thicker frass and silky webbing entangled with a darker, brownish appearance. Only larvae are present at harvest, usually 1 to 3 larvae per nut. Photos by UCCE Stanislaus IPM team

To control carpophilus beetle, ‘sanitize, sanitize, sanitize'

One crucial cultural practice for managing both pests, however, is destroying the remnant “mummy” nuts – the nuts that remain in the orchard postharvest. They serve as overwintering habitat for the carpophilus beetle, as well as its sustenance for the next generation of beetles in spring.

“The best way to manage this pest is to do the orchard hygiene – continuing the winter sanitation, destroying the nuts that are on the ground and on the tree and on the berms,” Rijal said.

Based on observations in Australia and locally, carpophilus beetles tend to rely more on mummies on the ground, whereas navel orangeworm generally favors mummies in the tree canopy. Correctly identifying the pest – with help from the new ID guide – enables growers to better target and prioritize their management efforts, Rijal said.

“What we are strongly emphasizing is that growers need to sanitize, sanitize, sanitize to control both pests,” Wilson added.

Correct identification of the pest would also prevent unnecessary application of insecticides, as those used for controlling Lepidoptera such as navel orangeworm would be largely ineffective on the beetle.

Indeed, another insight shared by Australian experts is that the carpophilus beetle cannot be controlled just by insecticide.

“Insecticides are not very efficient, given the cryptic nature of these beetles; exposing these beetles to the insecticide is very hard,” said Rijal, noting that the beetle spends most of its life cycle protected inside the nut.

Reporting carpophilus beetle infestation helps researchers

Mature larva of navel orangeworm (NOW) is 3 to 4 times larger than carpophilus beetle (CB) mature larva. Photo by Jhalendra Rijal

This harvest season, Rijal advises almond growers to harvest as efficiently as possible, to minimize the number of mummies that need to be cleaned up. And because signs of damage (like damaged hulls and frass) are most obvious during harvest time, Rijal said growers should review the new guide, using the photos and other resources to help identify potential pests.

If the grower or PCA suspects a carpophilus beetle infestation, they should contact the UCCE farm advisor in their area.

Scientists are looking to expand their knowledge about this relatively new pest to California. In the coming weeks, for example, researchers are planning to survey for the carpophilus beetle in the Sacramento Valley.

“Technically it has not been found there, but we suspect that we'll find it this fall when we go looking for it,” Wilson said.

Researchers are also collecting samples from infested orchards to better understand the biology of the species, as well as how it progresses through and responds to seasonal and climactic changes. In addition, they are analyzing data from a trial study of an insecticide that might be used as a supplemental control measure.

“This is our first full season dealing with this insect, and there are still many things we need to understand,” Rijal said. “We are continuing our research efforts on all fronts.”

Posted on Thursday, September 5, 2024 at 6:50 AM
Focus Area Tags: Agriculture, Food, Pest Management

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