Pests and Diseases

Bio-Control for Strawberry Growers

Strawberry Growers Lean on Biologicals to Manage Pest

By Jessica Theisman, Associate Editor

California Ag Today recently met with Surendra Dara, a UC Cooperative Extension entomologist based in San Luis Obispo County. According to Dara, California strawberry growers follow many sustainable options.

“Growers are well-educated and have a support system that provides information to them very regularly,” Dara said.

Growers try to apply as much of the IPMs as possible, but there is always a lot more scope in terms of using non-chemical alternatives. That is an area that has room to grow.

“The more we know about the options and their potential, they can be more adopted,” Dara said.

He explained that the strawberry growers often lean on biological insects such as beneficial mites that treat those damaging insects. It’s all part of IPM.

The insects are used outdoors along with in greenhouses.

“A bio-control is very well done in strawberries for mite control, but we do not have similar natural enemies for other pests,” Dara said.

There are botanical and microbial options for pest and disease management, and a lot of work is being done about understanding how they work and placing them in the right strategy.

“So, there is definitely plenty of options for us,” Dara said.

California Ag Today2021-05-12T11:01:47-07:00June 28th, 2019|

California Shows Decreased Use of Most-Hazardous Pesticides

There Was a Big Decline of Hazardous Material Used in 2017

News Release

The amount of pesticides used statewide declined in 2017 according to new data from the California Department of Pesticide Regulation. This includes a drop in many of the most hazardous chemicals, including pesticides that are carcinogens, and those with the potential to contaminate groundwater and air.

According to the 2017 Pesticide Use Report, the overall amount of pesticides used in California dropped to about 205 million pounds in 2017. That was a decrease of 2 percent from the previous year. Agriculture use, which accounts for the greatest pesticide use in California, dropped by 3.7 million pounds (1.9 percent) from 2016. Pesticide use in other applications, including landscaping and structural pest control, also decreased in 2017.

“This report demonstrates that California’s farmers continue to lead the way when it comes to using more sustainable pest management tools and techniques,”said Val Dolcini, Acting Director of DPR. “DPR looks forward to continuing its collaboration with growers, community groups, and other interested citizens to ensure that these pesticides are used in the safest manner possible. “

California produces nearly half of American grown fruits and vegetables, and the amount of pesticides used varies annually depending upon pest problems, weather and other factors.

You can see a short video at https://youtu.be/QKgExqdRpNM

Other highlights of the 2017 Pesticide Use Report data include:

The use of carcinogenic pesticides decreased by 5.6 percent to 41.7 million pounds, compared to 44.2 million pounds in 2016.
The use of fumigant pesticides decreased by 5.8 percent to 39.5 million pounds, compared to 41.9 million pounds the previous year.
The use of pesticides that are toxic air contaminants decreased by 6.4 percent to 43 million pounds, compared to 45.9 million pounds in 2016.
The use of pesticides with the potential to contaminate ground water decreased by 25.3 percent to 0.4 million pounds compared to 0.5 million pounds in 2016.
The use of pesticides identified as cholinesterase inhibitors, which can affect the nervous system, decreased by 2.6 percent to 4.2 million pounds compared to 4.3 million pounds in 2016. The pesticide chlorpyrifos is included in this category. In 2017, the use of chlorpyrifos increased by 5 percent to 946,000 pounds, compared to 903,000 pounds in 2016. However, overall use of chlorpyrifos has been decreasing for the last decade, and last month, DPR announced plans to cancel the registration of this pesticide.
The use of biopesticides, which have been identified as likely to be low risk to human health and the environment, increased to approximately 8.1 million pounds. This is a 5.5 percent increase from 7.7 million pounds used in 2016.

The pesticide-use data, which has become more comprehensive in the decades since such information started being collected in the 1950s, helps support DPR in its regulatory and enforcement mission. It can be viewed online: http://www.cdpr.ca.gov/docs/pur/purmain.htm.

California Ag Today2021-05-12T11:01:47-07:00June 18th, 2019|

Food Safety in the Field and Post Harvest

Farmers See Food Safety As Critical

By Jessica Theisman, Associate Editor

There was a recent panel discussion at the Safe Food of California Convention on how to keep food safe in the field and post-harvest. Tom Jones, senior director of analytic services with the Safe Food Alliance, stated that microbial food safety is being looked at to see what the key factors are.

The morning session was focused on getting the essential points of microbial food safety, such as what to worry about, key parameters to minimize the chance of contamination, and chemical contaminants.

“California agriculture is involved in growing crops for around the world, and so there are other concerns that we have to think about, such as pesticides or mycotoxins, where regulations might be different in different countries,” Jones said.

The Safe Food Alliance has to think about what products the consumer, customers, and buyers are looking for.

Innovative ideas like Blockchain are being used to keep food safe by tracking information.

“There are alternative treatments to traditional thermal processes that maintain the freshness of the food and its nutritional quantity, but [are] also able to destroy the pathogens,” Jones said.

Experts in Sacramento are advocating for food safety every day. They also advocate for agriculture and the challenges faced both domestically and internationally.

“We talked about everything from the challenges of Immigration and Labor to proposition 65 toxins regulations, the current trade disputes internationally, and how those are impacting California agriculture,” Jones said.

California Ag Today2021-05-12T11:05:03-07:00June 7th, 2019|

CA Citrus Growers Work Hard to Prevent HLB Devastation

Learning From the Florida Industry as to How Bad it Can Be

By Mikenzi Meyers, Associate Editor

The severe effects of the Huanglongbing (HLB) disease on Florida citrus is cause for California growers to take important preventative measures to ensure the safety of their trees. Keith Watkins, vice president of outside operations for Bee Sweet Citrus, has seen the damage firsthand and has been hard at work to protect his trees.

“I’ve been to Florida, and I’ve seen how devastating the disease can be,” he said. “We have to spend money now to basically prevent that from happening to us.”

There are currently around 1100 trees that have tested positive for HLB in the Orange County and Anaheim-Garden Grove areas, but they are mainly backyard citrus trees. Luckily, Watkins said that the disease has not yet been traced in commercial operations.

Keeping HLB out of commercial growth is the biggest challenge growers face. There is not yet a cure for the disease, but according to Watkins, growers can help prevent it from reaching their crops by staying on top of killing psyllids when spotted. “We have to stay diligent. Our future really is maintaining a psyllid free population,” he said.

California Ag Today2021-05-12T11:01:47-07:00June 4th, 2019|

Digital Technology in Agriculture Will Grow Faster

Digital Technology is Making Huge Leaps in Ag

By Jessica Theisman, Associate Editor

Digital technology is making huge leaps in agriculture. California Ag Today recently spoke with Kirk Haney, CEO of Radicle Growth, a venture capitalist fund concentrated on developing new, innovative companies focused on food, agriculture, health, and sustainability. Agriculture and construction are considered the least digitized industries in the world.

“Everything is digital, everything is being managed, measured, and it is going to happen in agriculture in the same way not only as digital is coming but it brings competition with data sharing,” Haney said.

According to him, if you do not start capturing your data and then sharing it in a way that is going to make you more competitive, your business is going to struggle.

“In terms of the incredible entrepreneurship that we are seeing, the speed at which technology is changing, processing power, chips, the power of iPhones—we are talking about the power of cloud computing and [in] another two years, the power of cloud computing will be in the palm of your hand … on the 5G network,” he said.

The cloud computing will change the way that farmers run their operations. The data stored on these devices will only help farmers increase their precision and improve their farming practices.

Truly, ag is the last frontier, and Haney believes that satellites will soon be used to detect bugs in fields.

“New camera vision technologies can actually, through thermal infrared, spot early pest detection to check out and treat whatever you need to do,” Haney said.

California Ag Today2021-05-12T11:00:36-07:00May 30th, 2019|

CDFA To Hold Good Ag Neighbors Workshops

Workshop Designed for Produce Growers and Livestock Areas to Promote Food Safety

News Release

In order to facilitate dialogue between different sectors of California agriculture about cooperation to prevent future foodborne illness outbreaks, the California Department of Food and Agriculture (CDFA) is partnering with the University of California and the U.S. Food and Drug Administration (FDA) to bring the livestock and produce communities together for a series of workshops.

The workshops, titled Good Ag Neighbors, are designed for fruit and vegetable growers, livestock owners, and others interested in learning about how produce safety and livestock management practices can work jointly to promote food safety.

The workshops will be held in two California locations, with the first scheduled for June 11 from 9 a.m. to 4 p.m. at the Desert Research and Extension Center in Holtville. The second workshop is scheduled for June 13 from 9 a.m. to 4 p.m. at the Robert J Cabral Ag Center in Stockton.

“Agriculture is complex,” said CDFA Secretary Karen Ross. “This is particularly true in California, where diverse agricultural operations often exist side-by-side, with each of them required to comply with a myriad of regulations designed to protect the public, the environment, and the food supply.”

Karen Ross, CDFA Secretary

Diversity is extremely important to the fabric of California agriculture. Also important is open communication channels between diverse partners. This has become more apparent with the CDFA’s newly created Produce Safety Program, which is working on behalf of the U.S. FDA to enforce produce safety regulations under the Food Safety Modernization Act.

The workshops will address lessons learned from recent investigations of produce-related foodborne illness outbreaks, examine key research findings, and consider future research needs.

The workshops are being conducted by the UC Davis Western Institute for Food Safety and Security and will include presentations by researchers and industry representatives. The day-long agenda will focus in the morning on reviewing regulations, laws, and practices already in place to protect food and environmental safety, while the afternoon will be spent in various breakout groups examining how these practices can be leveraged.

Participants should come prepared to share their experiences as well as their produce safety questions.

The workshops are offered free of charge. For more information and to register, please visit http://www.wifss.ucdavis.edu/good-ag-neighbors/.

California Ag Today2021-05-12T11:01:47-07:00May 24th, 2019|

Consumer Protection Is Top Priority for LGMA

New LGMA Irrigation Requirements Mean Heightened Food Safety Measures

By Mikenzi Meyers, Associate Editor

As consumer protection continues to be a number one priority for producers, main pathogen routes are of the utmost importance for guaranteeing safety. The California Leafy Green Marketing Agency (LGMA) is a program that works to continually keep the lettuce industry safe and maintain confidence in food safety programs—but as pathogens begin to evolve, it takes a team effort to combat future threats.

Mike Villaneva, LGMA technical director, told California Ag Today, “It’s been a tough 18 months, and it’s the challenge with these outbreaks … we never really have a good answer about what happened and how it happened.”

In the leafy greens industry, water becomes a focal point in pathogen prevention. “We’ve got 12 years of testing water, and we’re pretty confident of water in the deep wells along the Central Coast, but down south is a different ballgame—that’s open surface water,” Villaneva said.

On April 19^th, the LGMA board met and voted to strengthen mandatory food safety practices required on farms. One facet included prohibiting overhead irrigation 21 days prior to harvest unless the water is sanitized.

“They’re looking at some other potential testing and data that could lower that down to 14, but right now they’re sticking with the 21 overhead,” Villaneva said.

The California Leafy Green Marketing Agency continues to show their commitment to ensuring a safe, stable food supply through foodborne illness prevention. More information about the program can be found on their website at www.lgma.ca.gov.

California Ag Today2021-05-12T11:01:48-07:00May 23rd, 2019|

Western Growers Statement on California DPR Ban on Chlorpyrifos

Tom Nassif: CA Farmers Face the Most Stringent Regulations in the World

By Cory Lunde, Western Growers

In response to the recent announcement that the California Department of Pesticide Residue (DPR) is acting to ban the use of the insecticide chlorpyrifos, Western Growers President and CEO Tom Nassif issued the following statement:

“California farmers are universally committed to the safety of their food, the health of their workers and communities, and the sustainability of their land. At every turn, they strive to achieve efficiencies in their use of resources like water, fertilizer, and pesticides and seek to minimize both the human and environmental impacts of these inputs.

Tom Nassif

“California farmers also face the most stringent regulatory environment in the world, one that often limits their access to many of the tools still available to farmers elsewhere in the U.S. and in foreign countries, including certain types of pesticides. Indeed, over the last 20 years, California regulatory actions have removed several of the most important crop protection tools farmers rely on to fight pests and diseases.

“With … [the] announcement that DPR will initiate the cancellation of chlorpyrifos, one of the most widely studied and globally approved insecticides, California farmers now stand to lose yet another arrow in their quiver—without effective and ready replacement tools—making their quest to grow the safest, healthiest and most abundant food supply in the world even more difficult.

“California farmers are resilient, but the long-term viability of our farms in California depends on proper support from the Administration and renewed cooperation of the state’s regulatory agencies, especially in light of the many other unique and expensive regulations that place California farmers at a growing competitive disadvantage.”

California Ag Today2021-05-12T11:05:03-07:00May 22nd, 2019|

CCM Statement on Chlorpyrifos Ban

Flawed Data Forcing Cancellation

News Release From California Citrus Mutual

Recently, the California Environmental Protection Agency (CalEPA) and the California Department of Pesticide Regulation (DPR) announced that they are going to begin the cancellation process of chlorpyrifos. The statement cites scientific findings that chlorpyrifos poses serious public health and environmental risks to vulnerable communities.

“The decision to ban chlorpyrifos is not surprising given the significant pressure from anti-pesticide groups, active legislative proposals, regulatory proceedings, and ongoing court battles,” said CCM President Casey Creamer. “However, this decision relies heavily on an evaluation that was significantly flawed and based upon unrealistic modeling scenarios that are not verifiable by actual results in DPR’s own air monitoring network.”

“California Citrus Mutual and our member growers stand by science that is sound, that properly evaluates risks and puts forward appropriate safeguards to protect ourselves, our employees, and our surrounding communities. We are committed to safe and effective use of chlorpyrifos and other crop protection tools.”

“The process for which this chemical was evaluated was purposely exaggerated to achieve the desired outcome and jeopardizes the scientific credibility of the Department of Pesticide Regulation. This decision sets a terrible precedent for future evaluations and creates a chilling effect on companies planning on making significant investments to bring new products to the market in California.”

“The citrus industry is fighting feverishly to protect itself from the deadly citrus disease, Huanglongbing,” Creamer continued. “In order to do so, we must have the necessary tools in the toolbox for an effective Integrated Pest Management program.”

“The once mighty citrus-producing state of Florida has lost 70% of its production due to this disease, which is expanding exponentially in residential citrus trees in Southern California at this very moment. While our commercial growers will remain vigilant, it is vital that our policymakers recognize the seriousness of the threat and ensure sound scientific procedures are followed.”

“California Citrus Mutual will continue to be actively engaged in the regulatory processes around the cancellation decision and will continue to explore all potential remedies to allow the safe and effective use of chlorpyrifos.”

California Ag Today2021-05-12T11:05:03-07:00May 14th, 2019|

Biological Products Finding More Demand

Biological Products Industry Alliance Growing Rapidly

By Patrick Cavanaugh, Editor

The Biological Products Industry Alliance (BPIA) was started 16 years ago for only five biopesticide member companies. Now there are 129 member companies and membership ranges from manufacturers of biopesticides and biostimulants to service providers, marketers, distributors, and anybody who touches this industry.

Keith Jones is executive director of the BPIA. He said during a recent meeting in Rochester, NY, that the alliance is growing.

“The running theme for the event was the growth of our association, the growth of the industry, and much of that is driven by consumer demand, regulatory pressures, and just a real move towards a sustainable future in agriculture and other markets where biological products are used,” Jones explained.

Biological products got their start in commercial agriculture, such as fruits and vegetables but have grown in demand by other markets like golf courses and ornamental operations. Among the earliest biologicals used in production agriculture are B.t. products.

“For a variety of reasons, some traditional chemistries are losing efficacy because of pests developing resistance,” Jones said. “Biologicals can be helpful with that. They don’t replace traditional chemistries, but they can actually extend the life of traditional chemistries.”

Biologicals are all part of integrated pest management and can be used during different parts of the production season, where conventional products are not labeled for use.

Biologicals can be used at the onset of a growing season and when getting close to harvest, because there are less or no pre-harvest intervals.

“What’s great about biologicals is that most of them have multiple modes of action, so it’s very hard for the pests to become resistant to that,” said Jones, adding that, “There are many benefits of biologicals, and their acceptance is growing rapidly.”

Jones said that biological products don’t replace traditional chemistries, but they can actually extend the life of traditional chemistries.

California Ag Today2021-05-12T11:01:48-07:00May 9th, 2019|

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