- Author: Mike Hsu
During summer swarming season, homeowners urged to check for signs of Formosan subterranean termite
In the lottery of troublesome termite infestations, “Roger,” a Rancho Santa Fe homeowner, hit the jackpot (a pseudonym is used to protect his privacy). In 2021, his house in San Diego County was identified as home to only the fourth documented colony of the Formosan subterranean termite (Coptotermes formosanus) in California.
“FST is one of the most destructive urban pests in the world,” said University of California, Riverside entomologist Chow-Yang Lee, affiliated with UC Agriculture and Natural Resources through the campus' Agricultural Experiment Station. “It's also the only termite species listed in the ‘100 of the World's Worst Invasive Alien Species.'”
Endemic to East Asia, this termite is now established in many tropical and subtropical regions, including across the American South. Annually, its infestation costs more than $4 billion in control measures and damage repairs of structures in the U.S.
FST was first discovered in California in La Mesa (San Diego County) in 1992, and it was rediscovered in that city in 2018. Another infestation was reported in Canyon Lake (Riverside County) in 2020. And then, the following year, Roger received his surprise.
“Imagine being in your kitchen looking at your drywall and it's totally normal and then the next day there's a four-inch hole there and you're like ‘What the heck is that? Who put their elbow into the drywall?'” he recalled.
FST colonies can reach millions of individuals
Roger hired a pest control company, Green Flash Pest Control, which sprayed a powerful liquid termiticide in the soil around the house. But the termites – workers, soldiers and winged “alates” – continued to appear. The company tried a second application of soil treatment. But, again, the termites kept popping up.
“We were deeply concerned about the potential damage these termites could cause to the home since these invasive termites are extremely destructive,” said Eric Veronick, director of operations at Green Flash. “Unfortunately, there isn't a whole lot of information available on the behavior and management of this termite in California.”
The company called upon Siavash Taravati, a UC Cooperative Extension urban Integrated Pest Management (IPM) advisor based in Riverside.
“Some colonies are aerial, meaning that they are formed above the ground with limited or no connection to the soil – in such cases, soil treatment using contact insecticides may not be very effective in managing these termites,” Taravati said. “Furthermore, contact insecticides usually kill a much smaller portion of the colony when compared to termite baits.”
To make matters worse, once FST is established in an area, there have been no records of successful eradication anywhere in the world, according to Taravati. He added that a major reason why the Formosan subterranean termite is so destructive is the enormous size of their colonies.
“Their colonies can reach millions of individuals, versus most native subterranean species that reach a few hundred thousand individual termites per colony,” Taravati explained.
This termite, through its sheer numbers, can turn the wood in a structure into a “spongy kind of cake,” in Taravati's words. More than 10 pounds of wood in a house can be eaten by a mature colony each month. The financial hit for a homeowner can be substantial, up to tens of thousands of dollars – not to mention the increased risks to safety.
“Anything from studs to rafters to door frames and window frames – everything is going to be compromised, if the termites are left unchecked. And then, as soon as we have a major stress on the building, let's say there's a big storm or an earthquake – there's a high risk of at least part of the building collapsing,” said Taravati, who also noted that, unlike California native subterranean termite species, FST can attack and kill live trees and plants.
“These termites can be a nightmare,” he said.
Summer is ‘swarming season' for FST
Since the Rancho Santa Fe case in 2021, four more colonies have been documented, in La Mesa again and also in Highland Park, Hollywood Hills and La Verne (the latter three in Los Angeles County). Taravati said it's possible that FST has been spreading via structural lumber or potted plants and soil.
And even if a colony appears to be eliminated at a certain locale, Taravati noted, there is always the chance that part of the colony survives or more colonies of termites already have been established in nearby locations, as a result of swarming termites from the originally infested property.
Although nominally “subterranean,” certain members of an FST colony grow wings and fly to nearby locations to establish new colonies. These winged alates are also called swarmers because of their behavior during the “swarming” season, when termites mate and reproduce.
For the Formosan subterranean termite, that swarming season in California is late May through early August, so now is the time for homeowners and building managers in southern and central California to keep an eye out for those winged termites.
“If you experience a termite swarm in your house, contact a pest management professional and keep some termite samples in a Ziploc bag in the event you need to send the samples to UC Riverside for morphological and DNA-based identifications,” said Lee, who added that it's a good idea to periodically check your structure for signs of infestation, such as wood damage or shelter tubes (mud tubes).
Lee said FST swarmers have a lighter colored body compared to the dark color of native subterranean termites and the orange-brown body of drywood termite swarmers (see this flyer for additional identification information).
Following an especially wet winter, there's a chance California could see more FST infestations, as this termite generally requires moist environments to thrive, Lee added. He recommends that concerned community members seek professional advice.
“Do not attempt to control an FST infestation by yourself,” Lee said. “This is not your typical native Californian subterranean termite species; they are highly destructive, and you want to intercept the problem with the right strategy before it's too late.”
Homeowner: ‘I owe them my house'
In Roger's case, Taravati enlisted the help of Lee and his UC colleague, Greg Kund. They made multiple visits to inspect the home and analyze the situation – going “above and beyond,” according to Roger.
At Lee's suggestion, they used a caulk gun to insert a gel-like experimental bait into the wall where the termites were coming out. Once spread and passed on to the other nestmates, the product – which contains a chitin synthesis inhibitor (a type of insect growth regulator) – interrupts the termites' development so they are unable to properly molt and replace the short-lived “workforce” of foragers and soldiers. The colony eventually collapses and is eliminated.
“Generally speaking, IGRs are much more effective, but they require more patience,” Taravati explained. “You're not going to see the results the next day, or two-three days. You're going to see the results in a few weeks – but when you see the results, it's massive.”
And that's exactly what Roger and Green Flash Pest Control saw.
“Soon after their bait application, the termites stopped emerging from the walls and that gave us and the homeowner a big sigh of relief,” Veronick said. “I appreciate their expertise and dedication in helping us get rid of this destructive pest."
Roger said he is immensely grateful to the UC team.
“They were fantastic; I owe them my house,” he said. “They were super gracious and helpful and responsive and – ultimately, the thing I care most about – they were effective; they fixed the problem. Here we are two years later and – knock on wood, or maybe I should knock on something else! – everything is good.”
Lee also credited Taravati for bringing his knowledge and “can-do” attitude to communities across Southern California.
“He is highly knowledgeable and always able to come up with feasible solutions,” Lee said. “We need good Cooperative Extension urban IPM advisors like Siavash who could provide good advice and bring solutions to the stakeholders, be they homeowners or pest management professionals.”
Taravati said community members need to maintain their vigilance and urges them to download and share the FST flyer that includes identification tips and contact information. He said they are always free to e-mail him with their concerns and photos of suspected FST – not only to help stop the spread of the pest but to expand scientific understanding.
“This termite is so new to California – even for us, as researchers. Despite being in La Mesa since the 1990s, it wasn't until 2020 when these termites were detected in other places, including Riverside and Los Angeles counties,” Taravati explained. “All of us need to learn more about this pest and closely monitor the behavior of this pest.”
/h3>/h3>/h3>/h3>- Author: Saoimanu Sope
Besides starting fires for the sake of research, Luca Carmignani, UC Cooperative Extension fire advisor for San Diego, Orange, Los Angeles, and Riverside counties, has started leveraging his connection to local UC campuses by providing opportunities for hands-on learning.
Early one morning in May, students and staff from UC Irvine and UC Riverside gathered at the South Coast Research and Extension Center to collect data for their own research projects. South Coast REC, located in Irvine, is part of a statewide network of research and education facilities operated by UC Agriculture and Natural Resources.
In one area of the field, graduate students picked leaves and twigs from dried shrubs, carefully placing them in a device that measures moisture content. In another area, a postdoctoral scholar set up a device that records levels of particulate matter, carbon dioxide and other air pollutants emitted by a fire.
Tirtha Banerjee, professor in the Department of Civil and Environmental Engineering at UC Irvine, coordinated the field day with Carmignani. The two first connected as members of iFireNet, an international network of networks that connect people to fire research, when Carmignani was a postdoctoral researcher at UC Berkeley.
Now, the two are collaborating to help environmental science and engineering students realize the potential of their research interests.
Jacquelynn Nguyen, a Ph.D. student in the Civil and Environmental Engineering department at UC Irvine, is interested in understanding how ash from wildfires and prescribed burns can be used as a treatment for per- and polyfluorinated substances. PFAS are a group of “forever chemicals” that can be found in heat-resistant materials – including fire extinguisher foam – and are extremely difficult to eliminate.
Before Nguyen could collect her ash samples, Carmignani needed to cautiously set the dried shrubs on fire, providing a realistic situation for data collection purposes.
“We're trying to figure out if the ashes from these fires can be used as activated carbon, which could be used as a treatment for PFAS,” said Nguyen. “We want to see if this treatment can basically absorb PFAS and prevent it from traveling into soil and groundwater.”
While Nguyen is concerned about the impact that wildfires have on the land, Soroush Neyestani, a postdoctoral scholar in the Environmental Sciences department at UC Riverside, is interested in its impact on the air quality.
During a fire, it's difficult to determine how much emissions are a result of flames versus smoldering, the process of burning slowly with smoke but no flames, and current air quality models do not provide accurate guidance on this matter. Using an air quality sensor, Neyestani wants to quantify the difference in emission levels during the two phases.
“There are assumptions that 50% of emissions come from smoldering, but every fire is different. Our main objective is to improve the accuracy of air-quality forecasting,” Neyestani said, noting his concern that these assumptions might not be realistic.
Although the field day was created with the students in mind, Carmignani used the opportunity to polish his own research efforts. Since fall 2022, he has been investigating the flammability of low-water use landscape plants based on various irrigation applications.
“Every time we burn, I feel like we get better. We get better data, and we conduct better analysis, and that's really important for us so that we can figure out how we can apply our research and measure its outcome,” said Carmignani.
In addition to welcoming more collaborations with UC campuses and other organizations, Carmignani is hopeful that these combined research efforts will spark an interest in wildfire awareness everywhere.
- Author: Pamela Kan-Rice
New food systems partnership to aid disaster response in Del Norte, Humboldt, Mendocino, Sonoma, Napa and Marin counties
To improve people's access to food during disasters, University of California Cooperative Extension advisors Dorina Espinoza and Julia Van Soelen Kim received a combined $1.5 million from the USDA Agricultural Marketing Service Regional Food Systems Partnership Program and crucial matching contributions from local government, nonprofits and foundations. Over a three-year period, they will create a California North Coast Emergency Food System Partnership across six counties – Del Norte, Humboldt, Mendocino, Sonoma, Napa and Marin – to strengthen local and regional food systems and build community resilience.
“We wouldn't have been able to access these funds without UC providing the backbone,” said project partner Suzi Grady of Petaluma Bounty, an urban farm and food security project. “The trusted relationship with UC allows us to broaden our reach and scope; the neutrality piece is also really important. It's a natural fit for UC to step in.”
Grady added, “I'm excited by this opportunity because UC can provide evaluation, reflect back to us what happens in disasters, and help build our collective capacity when those of us who are busy doing are too busy to step back and reflect. Having academic partners helps us retain institutional knowledge, learn from the past and strategize for the future."
Meredith Knowles with the Del Norte and Tribal Lands Food Security Project agreed, “I have seen so many times that the relationship building, coordinating and making space for sharing is so important and the momentum that comes from that is powerful. I'm excited for the space to share that.”
Learning from past disasters
Following earthquakes in Humboldt County last December, UC Cooperative Extension advisor Espinoza took part in the Community Organizations Active in Disaster or “COAD,” collaborating with local government, agencies and organizations to support a Local Assistance Center in Rio Dell, the town hit hardest by the quakes.
Espinoza and partners worked to connect impacted neighbors with local, state and national services, including ensuring community members could access food right in their community through the local food bank and local food trucks, which prepared meals for residents who were unable to use their kitchens.
In January, with storms in the forecast, Mimi Enright, UCCE Sonoma County community food systems program manager, activated the COAD's Emergency Food Group in Sonoma County. She discussed with Van Soelen Kim, UCCE North Bay food systems advisor, as well as local emergency food providers, how their network could respond to food needs that might arise if flooding occurred.
“Before the storm, we met and asked, ‘What populations might be most impacted? What organizations might be offline because of the storm? Who will be able to deliver groceries and meals to sites in the community?'” Enright explained.
Further north in Del Norte County along the Oregon border, there are limited entry points and no major highways, leaving the region vulnerable to natural disasters. Road access to and from the county is frequently blocked by landslides, wildfires and floods, resulting in disruptions to food deliveries.
The Del Norte and Tribal Lands Community Food Council – a group that works to build a more local food system by providing healthy, culturally appropriate food to families – learned from past closures and from the pandemic the importance of having local and regional systems in place to better respond to the emergencies that impact the isolated area of the state. Their Choice Pacific Pantry includes local products in its food distribution programs and their Pacific Fresh Mobile Market brings food directly to vulnerable rural communities with limited access to nutritious food.
Over the past five years, Northern California has experienced catastrophic wildfires, floods, landslides, drought, earthquakes and the pandemic, all of which have put increasing pressure on local producers, the local/regional food system and emergency food aid.
“Food is implicated in every disaster,” said Patti D'Angelo Juachon with the Marin Community Foundation.
Through the various challenges to their communities, Espinoza, Enright and Van Soelen Kim have extended their expertise related to emergency food systems. Collectively the UCCE team has gained firsthand knowledge about what works well and what doesn't in getting local food to food-insecure community members. They hope to share this knowledge with partners regionally and expand collaboration at a larger scale.
“Local food production is critical to the resilience of the North Coast,” said Lynda Hopkins, Sonoma County District 5 supervisor. “I'm thrilled that UCCE will be working with our farmers to ensure that we can feed our residents healthy, local food no matter what disaster we're facing – be it future flood, fire or pandemic. This is a huge step towards food security for Northern California!”
Collaborating across the North Coast
“The Regional Food Systems Partnership Program will help to build a more resilient and stable food system in times of disaster and in times of stability,” said Heather Irwin, founder of Sonoma Family Meal. “This is very important work for the future of Northern California disaster relief efforts, and we are excited to be part of it. During disasters, Sonoma Family Meal coordinates resources between the restaurant industry and emergency meal providers in order to provide quality emergency meals for those who have been impacted.”
One way the team hopes to strengthen local and regional food systems is by reducing the risk of lost income and creating additional market channels for local food producers in emergency food supply chains. The team also plans to create a network of partners, develop emergency feeding plans, and inventory local emergency food supply chain infrastructure. They also plan to create recommendations for policies and practices that support local/regional emergency food supply chains.
/h3>- Author: Saoimanu Sope
A typical day for Dee Keese starts with a 10-mile walk at 5 a.m. and her morning wraps up with a swim. Although Keese is in her late 70s, her daily routine would not surprise you if you knew what she has been doing for the last 48 years.
For nearly a half-century, Keese has been the 4-H community leader for the Palos Verdes Peninsula (PVP) club in Los Angeles County. A youth development program managed through local University of California Cooperative Extension offices, 4-H uses hands-on learning experiences to empower youth to build self-esteem and connect with their communities as emerging leaders.
“When you're pushing 80, working with young people helps to keep you young,” Keese said.
4-H has been a game changer in many ways
In the 1970s, Keese moved to the Palos Verdes area with her first-born son who had a learning disability. Others treated him differently in school, and it didn't help that he was the new kid in town. A neighbor encouraged Keese to enroll her son in 4-H.
“She told me, ‘You've got to put your son in 4-H so he can feel good about himself,'” explained Keese. “And let me tell you, it changed my life.”
In 1978, two weeks before her fifth child was born, Keese became the 4-H PVP club's community leader and has been in the role ever since.
While reflecting on her earlier days with 4-H, Keese remembered when most members were boys. Girls were not intentionally excluded at the time; clubs just didn't attract them. When girls eventually joined 4-H, it was a game changer.
“All of a sudden, the program shifted focus from solely agriculture and animals to include home economics like cooking and sewing,” Keese said. “Now, all my sons do the cooking in their homes. It's a good thing! Because we're moving away from traditional domestic duties, men and women are sharing roles, as they should be.”
The PVP 4-H club offers activities like archery, sailing, surfing and geocaching. “Everything we do is to help our youth be better as adults, out in the real world and in the workforce,” said Keese. “We're relying on the internet too much. Kids need to get outside and do things.”
Over the years, Keese has taken members – who range in age from 5 to 19 – on numerous hikes in places like Havasupai Indian Reservation and Mt. Whitney. She's taken them kayaking on the Colorado River and, these days, co-hosts old-fashioned card game nights on the weekends with other community members.
As a lifeguard and water safety instructor, Keese gives free training to interested 4-H members to become lifeguards. Training courses usually cost well over $200 per person. “If they're interested, I train them and they have another skill to use. And it benefits our club,” said Keese. “When we have pool parties or beach days, my kids are prepared to step in and help.”
‘She will help anyone and everyone at any time'
Ace Yeck, former president of the PVP 4-H club, met Keese 12 years ago and decided to become a 4-H member when he was in fourth grade, following a convincing conversation with her. “She just kept giving me opportunities,” said Yeck.
Currently a third-year undergraduate at Loyola Marymount University studying entrepreneurship, Yeck credits 4-H for preparing him for college. “I got all my community service and public speaking practice through 4-H. I remember doing beach clean-ups, feeding the homeless, helping out at the Christmas fair, and all kinds of events,” he shared.
During his years with 4-H, Yeck was elected to the state board as an ambassador before he went on to represent 4-H at the national level. “Dee encouraged me every time, so I kept going,” he said.
Keese admitted that her life is so full and fun because of 4-H. Her motivation stems from the growth and progress that her students experience. “My kids let me know when I've done something to impact their life. It keeps me motivated,” she said.
While thinking about the members she's had over the last 48 years, she couldn't help but stress how important it is that they feel safe. Keese recalls one student who is gay and had a challenging time getting his parents to understand because of religious and cultural barriers. “The family's priest called me and told me that this student felt like I was the only one who loved him,” she said.
“I can talk about Dee forever,” said Yeck. “One of her best qualities is that she will help anyone and everyone at any time. She wakes up at 5 a.m. and goes to bed at, like, 10 p.m. During that time, she's always helping people,” he added.
Because Keese comes from a different generation compared to the kids in her 4-H club, she attributes her successful impact to her ability to adapt. “If we want to keep kids in this, we've got to be flexible! And you've got to do things they like. We can't do things the way it's always been done before,” said Keese. “We have to be flexible.”
To Keese, 4-H is not just an opportunity to teach life skills or introduce kids to agriculture. It's a chance for them to build community.
“That's what I think my generation does well, having grown up in the '50s and '60s,” Keese said. “We're all about that communal living.”
- Author: Mike Hsu
Reduction of SNAP benefit deepens crisis of inflation, high cost of living, low wages
Starting this month, many of the estimated 3 million people in the CalFresh program – California's version of SNAP (Supplemental Nutrition Assistance Program) – will be facing hunger and making difficult decisions to meet their most basic needs. In late March, participants received the last of the pandemic-related emergency aid that significantly boosted their monthly benefits. The reduction varies by household size and income; for example, in April a single-person household could see a drop from $281 per month to $23.
“The emergency food allotments had a tremendous impact in our communities and across the nation,” said Shannon Klisch, academic coordinator for the Youth, Families and Communities Program for UC Cooperative Extension in San Luis Obispo and Santa Barbara counties. “One study estimated that these allotments kept more than 4 million people out of poverty across the U.S. in the last quarter of 2021, and reduced child poverty by 14%.”
SNAP increases during the pandemic made many Californians more food-secure, with some participants reporting that their allotments finally had been enough to feed their families for the month, according to Wendi Gosliner, a project scientist at the Nutrition Policy Institute (a program of UC Agriculture and Natural Resources). But, with the benefit reductions, food insecurity is emerging again as a serious concern.
“It is inconceivable that a nation this wealthy should have so many people experiencing hunger,” Gosliner said. “And here in California, with the high cost of living, ongoing inflation and extreme income and wealth disparities, people are being forced to explore every possible avenue just to feed themselves and their families.”
To help ensure they are receiving the maximum allotment, Klisch recommends that CalFresh participants – especially those who applied during the pandemic and are relatively new to the program – double-check their information.
“If the county doesn't have your most up-to-date information, call your county worker if you've changed your address, if you've experienced decreased income, if your housing costs have gone up, or if you have new expenses – like child or dependent care expenses or medical expenses – these can help you qualify for more CalFresh funds,” she explained.
For families with school-aged children, Klisch said they can stretch their food dollars and promote healthy eating by encouraging their children to eat breakfast and lunch at school through California's universal free school meals, and all families with children under 18 can watch for the next issuance of the P-EBT (Pandemic EBT) card, worth potentially hundreds of dollars.
In addition to these options for food assistance, Klisch pointed to programs that can help people save money on other household expenses, such as California Alternate Rates for Energy Programs (CARE) and Affordable Connectivity Program. Local food banks are also gearing up across the state to handle an expected surge in clients in need of emergency food; a list of California food banks can be found at cafoodbanks.org/our-members.
“We ask a lot of low-income families and workers to navigate and piece together various programs, applications, and benefits when we don't commit to a strong safety net,” Klisch said. “On the other hand, when people have enough money for food, everyone benefits through decreased health care costs and increased economic activity.”
Gosliner also said that people should look into their eligibility for WIC (Special Supplemental Nutrition Program for Women, Infants and Children), as well as the federal Earned Income Tax Credit (EITC) and CalEITC, poverty-alleviation benefits underused by Californians.
“People should make sure they are accessing all the safety net benefits for which they are eligible,” Gosliner said.
Market Match, other nutrition incentive programs can help
Through programs like Market Match, available at about 300 farmers markets across California affiliated with the Ecology Center, CalFresh participants can have their EBT benefits “matched” by their local market (usually up to $10 or $15 per visit).
“People are looking to get creative about how to stretch their food dollars, and Market Match is one way to do that,” said Klisch, who has led UCCE efforts to help promote the program along the Central Coast since 2017.
Striving to expand access to fresh fruit and vegetables and to support local farms, UCCE and CalFresh Healthy Living, UC worked with partners to increase CalFresh redemption at farmers markets in San Luis Obispo and northern Santa Barbara counties.
In 2017, about $48,000 in CalFresh and Market Match benefits were redeemed at farmers markets in the area. In 2022, the total was more than $207,000 – a 327% increase. According to Ecology Center figures for the entire state, CalFresh and Market Match spending at farmers markets jumped 161% from 2019 to 2021, up to $13 million.
Gosliner, whose research has shown that these nutrition incentive programs are associated with increased food security, noted that “the people who use Market Match absolutely love the program and feel it is incredibly helpful.” She also added that the California Department of Social Services is developing a pilot program that would offer match incentives for purchasing fruits and vegetables at larger food retailers.
Although the biggest of its kind, Market Match is just one of the programs across California that provide “matches” for healthy food purchases under the California Nutrition Incentive Program, which in turn is primarily funded by GusNIP (the nationwide Gus Schumacher Nutrition Incentive Program).
GusNIP dollars – and SNAP overall – are governed by the federal Farm Bill, typically renewed every five years and currently being negotiated by Congress.
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