Crop Protection

No End in Sight for Stopping Huanglongbing Disease

Millions Spent to Fight Huanglongbing, with No Cure

By Mikenzi Meyers, Associate Editor

The California citrus industry—made up of 3,500 growers in Ventura, Riverside, and the San Joaquin Valley, and encompassing 70-75 packing houses—is an agricultural facet that continues to make California a fresh citrus powerhouse. Joel Nelsen, President and CEO of the California Citrus Mutual, spoke to California Ag Today recently on the industry-wide issue of Huanglongbing Disease—a deadly disease that has threatened the industry in every part of the state.

“For our industry, it’s a combination of enthusiasm, unity, frustration, and aggravation because we continue to fight the spread of the disease in Southern California.”

“We’re continually frustrated because science has not yet found a cure. We’ve given the scientific community an average of thirty to forty million dollars a year to find a cure for this disease.”

In a recent study done by the University of California, Riverside, economic outputs of the citrus industry is roughly $7 billion.

“It’s an economic engine for certain parts of this state. Lose it, and it’s not a positive alternative, that’s for sure,” Nelsen said.

2021-05-12T11:05:08-07:00November 14th, 2018|

IR-4 Program Trying to Help Florida Citrus Industry Due to HLB

IR-4 Researchers Control Material to Help Citrus Industy

By Patrick Cavanaugh, Editor

Jerry Barron, executive director of the IR-4 Project at Rutgers University in New Jersey spoke to California Ag Today recently about his program.

A major priority with the IR-4 Project is the prioritization of projects that need to be done to find crop protection products for crops such as citrus. Among the urgent challenges for citrus is the control of the Asian Citrus Psyllid (ACP) which vectors Huanglongbing (HLB)—a fatal disease to citrus. Barron spoke about the disease, which has devastated Florida citrus growers and all parts of the citrus economy in the state.

“HLB is devastating Florida citrus growers and the economy in Florida. It’s about a billion dollars of lost production, which is affecting local communities, food processors, and the people who are harvesting the fruit,” Barron said. “It is totally disrupting the whole economic base of certain areas.”

Asian Citrus Psyllid Yellow Trap (Source: Citrus Pest & Disease Prevention Program)

“So what we’re trying to do is work with the people in Florida, to provide them some tools, not only to control the Psyllid which transmits the disease but also provide them some tools to help control the disease once it’s infected the plant.

“At this point, it’s very difficult because certain crop protection products are just not available, but we’re trying to find these magic bullets to truly give them a solution for this devastating problem,” he said.

2021-05-12T11:05:08-07:00November 12th, 2018|

Lallemand Plant Care Acts as a Voice for the Industry

Microbes Company Promotes Biostimulants for Ag

By Mikenzi Meyers, Contributing Editor

The term “regulation” is often an unattractive vernacular for farmers and ranchers, just as “pesticide” or “chemical use” would be for the uneducated public. Amy Roberts, Regulatory Affairs Manager for Lallemand Plant Care based in Montreal, Canada, is working to make both sides come together.

California Ag Today caught her comments at the 2018 Biological Products Industry Alliance (BPIA) Fall Meeting and Sustainability Symposium in Rochester. Roberts has been appointed the 2019 chair of BPIA

Lallemand Plant Care is a company that specializes in the use of microbes in agriculture for pesticides and biostimulants. However, Roberts has assisted them in taking on an even greater task.

“We’d like to be a voice to help improve things in a regulatory standpoint and perception standpoint,” she explained, and with the organization growing to represent the industry as a whole, “the goal seems tangible.”

This doesn’t come without its obstacles though, and Roberts noted that there is a lack of clarity for the regulatory framework, making products harder to market.

“It’s challenging for people to market them, and it’s challenging for growers and users to understand what they are and how they should be using them,” she said.

This combined with the continuous hesitation towards pesticides and biostimulants from people unfamiliar with the industry makes education and understanding on both ends that much more important.

More information can be found at www.bpia.org

2021-05-12T11:01:52-07:00November 2nd, 2018|

George Soares on How DPR Sees Cannabis

Soares: DPR Interpretation of Cannabis is Wrong

By Jessica Theisman, Associate Editor

George Soares, a partner in Kahn, Soares, and Conway, a law firm based in Sacramento, recently spoke about the issues surrounding cannabis. He is managing partner of the firm and represents several agricultural commodity and trade groups in Sacramento.

He spoke at the recent California Associations of Pest Control Advisors (CAPCA) annual meeting in Anaheim. He touched on the fact that the California Department of Pesticide Regulation (DPR) is not thinking of the public in their handling of crop protection materials on cannabis.

“The people of California have decided that cannabis can be consumed by the public,” Soares said. “The question is how to grow the cannabis under the regulation.

Currently, the chemicals and fertilizers used to grow the cannabis are all illegal.

“So far, the solution is that we make it legal by stretching the interpretation of the law,” he explained.

By law, pesticides have to be labeled for use, and eligible crops must be on the label.

“The pesticides being used are being interpreted in ways to make it legal to use on cannabis,” Soares said. “Think about the damage that is doing to the legal structure of what we all adhere to.”

“DPR would never let a pesticide be used off-label, but when it comes to cannabis, it looks like the government is willing to let it slide,” he said.

2021-05-12T11:01:52-07:00November 1st, 2018|

Crop Protection: U.S. Food System Very Safe

Crop Protection Products are Highly Regulated

By Patrick Cavanaugh, Editor

There’s no need to worry about crop protection products when you consume food, fruits and vegetables, and all the rest, as the materials are highly regulated.

“Chemicals are all around us. In fact, we are all made of chemicals, so the fear of chemicals is unnecessary. Chemicals can actually be very beneficial,” said Dr. Eliza Dunn, Medical Sciences and Outreach Lead for Bayer Crop Science. “Chemicals make antibiotics and vaccines, and all of that is really important because it’s in public health, and they also protect the food supply.”

And here’s a fact: Pesticides a more heavily regulated that antibiotics that we take and those antibiotics and other pharmaceuticals are highly regulated.

“You have to do lots of testing to get your pharmaceutical in the market. Testing and monitoring pesticides are the same way. Pesticides come up for reevaluation every 15 years, and they look at all of the data that’s involved in that 15 years to make sure there’s nothing new that can be concerning for human health,” Dunn explained.

“These agencies have the best interests of people at heart. I wouldn’t feed my kids something that I thought was worrisome. And I feed my kids fruits, vegetables, and other foods, and I don’t worry about the residues because it’s not going to cause harm,” she said.

Dunn also commented on the Environmental Working Group’s Dirty Dozen List that they release each summer.

“It’s very unfortunate because it winds up causing people to get very worried about their food supply, and you can be absolutely reassured that the food supply in this country is safe and healthy and nutritious,” said Dunn. “We are so lucky to have access to such a fabulous food supply because there are other places in the world that don’t have access to that, and it’s because we have things like crop protection products that make sure that we have an access to that kind of food supply.”

As for the EWG’s statements that certain fruits have higher residues?

“That’s misinformation, unfortunately. They’re not toxic. We know that fruits and vegetables are healthy. If you are worried about residues, you can wash them off. It’s really fear-mongering, and that is irresponsible,” Dunn said.

2021-05-12T11:05:09-07:00October 18th, 2018|

2018 Cotton Crop Proceeding Well

Late Season Pests Can Be a Challenge

By Patrick Cavanaugh, Editor

The 2018 cotton harvest will be starting in the southern part of the Central Valley later this month, and some growers will be facing pressure from pests.

California Ag Today recently spoke about the topic with Dan Munk, a UC Cooperative Extension Farm Advisor in Fresno County specializing in irrigation crop nutrient management and cotton production systems.

“The crop looks very good and loaded with cotton bolls. We don’t have a lot of boll losses, and that’s a real positive thing, so very excited about the potential for fairly high yields in the 2018 season. The biggest concern right now is pest management, press pressures as we approach the latter part of the season,” Munk explained.

The main issue this time of year is the honeydew that pest leave on the cotton. Honeydew is the exudate extracted by the insect as it feeds on the leaves.

“Because we have the bolls on the plant that have opened, we now have exposed lint and need to protect that lint from stickiness that’s created from whitefly and the aphid honeydew, which is basically the added sugars that those insects that feed on the leaves of the plant, and they excrete them and deposit them on the lint,” Munk said.

Munk explained that the big concern right now is dealing with pest pressures in terms of whitefly and aphid—both sucking insects. “The problem right now [is] where we’re seeing pest pressures—particularly from whitefly as we get later in the season—will build in many fields.

There are several approaches to controlling whitefly and aphids. One is to deal with the eggs that they produced. And then there’s a certain class of materials to deal with the eggs.

“There’s another class of materials that deal with the juveniles—that early form of the insect—and then there are ways to control the adults,” Munk said.

“A number of insecticides have been applied to deal with those various levels of insect populations based on the individual field situation,” he explained.

2021-05-12T11:01:53-07:00October 3rd, 2018|

STK REGEV ‘Hybrid’ Fungicide Named Finalist for Best New Crop Protection Product

TIMOREX GOLD Finalist for Best Marketing Campaign

News Release Edited by Patrick Cavanaugh

STK bio-ag technologies, a global leader in the development and marketing of botanical based and hybrid solutions for food protection, was selected as a Finalist in two Agrow Award categories … REGEV ‘Hybrid’ Fungicide for Best New Crop Protection Product of the Year, and the TIMOREX GOLD Outreach for South American Growers as the Best Marketing Campaign of the Year.

Note that Regev is not registered in California while Timorex Gold is pending registration in California.

REGEV is the first product of its kind in the market. REGEV is a pre-mix hybrid solution that delivers effective and sustainable disease control in a very wide variety of high-value, row and even broad acre crops. This is a breakthrough formulation which creates a bridge to future biologics use, enabling growers in all sectors and geographies to reduce their ecological footprint and thrive economically to better meet the demand for sustainable food protection.

REGEV is a revolutionary and easy-to-use approach to sustainable crop protection. REGEV is a hybrid pre-mix, which is used in exactly the same way growers use their current chemical fungicides. No mixing. No Rotating.

REGEV enables growers who have never used any biological product to try a biologic, experience an effective new tool for combating resistance, increase crop yields, sharply reduce chemical residues and make crops more competitive with consumers and regulators globally,” said Arye Tenenbaum, CEO of STK bio-ag technologies.

The Agrow Awards were developed to recognize excellence in the crop protection and production industries. Entries are evaluated using a wide range of criteria by an independent judging panel consisting of a group of experts from around the world.

Winners of the 11th Annual Agrow Awards will be announced at the Awards Gala scheduled to take place on November 12th at 8 Northumberland in London.

2021-05-12T11:01:53-07:00October 2nd, 2018|

Aza-Direct Stops Insect Feeding

Aza-Direct Targets Critical Pests

By Patrick Cavanaugh, Editor

Aza-Direct, with the active ingredient Azadirachtin, is one of the most potent, reduced risk insect pest controls among all the natural pesticides.

With four modes of action, Aza-Direct targets critical pests such as spider mites, thrips, whitefly, aphids, and lygus. It’s very safe with beneficial insects, especially bees, to help maintain the natural balance within the crop.

The product has a lot of excellent benefits regarding those four modes of action, explained Patrick Holverson, Director of Ag Business with Parry America Inc., which manufactures the active ingredients for Aza-Direct.

“Because of the four modes of action, you will not get a resistance buildup like you can with standard chemicals,” Holverson said. “What I like about it, many growers in California will apply Aza-Direct in anticipation before the target pest hits because it is not a contact killer; it takes two or three days to get into the pest’s system to reduce the population.”

Furthermore, the material is an excellent repellent and as well as an anti-feeding agent.

“Those pests who stay in the treated field will experience severe feeding cessation due to a locked jaw and digestive system,” Holverson said. “So, the pests that do feed on the plant, the material acts as an insect growth regulator that affects both the eggs and the larva, preventing them from reaching maturity.”

Holverson said that in strawberries, Aza-Direct controls two significant pests—including two-spotted spider mite and lygus—that come in after losing their host crop.

“The product prevents puckered strawberries and increases the value of the crop,” he said. “It can be used on both organic and conventional crops.”

It has a zero-day pre-harvest interval, and four-hour re-entry, which is essential in a crop such as strawberries.

2021-05-12T11:01:53-07:00September 28th, 2018|

Idea to Reduce Glyphosate Use with Grapes

Use Glyphosate When Absolutely Needed

By Mikenzi Meyers, Associate Editor

There is an effort underway to minimize glyphosate use before bud break in grapes. It doesn’t need to be used all the time. A lot of annual weeds can be controlled with several herbicides. Keep the glyphosate for hard to control perennials.

John Roncoroni, a UC Cooperative Extension Weed Science Farm Advisor in Napa County, has made strides toward meeting this challenge. “Many times, growers will do two applications of herbicides during the year … but what I’m trying to do is push it back to post-leaf fall after the season to clean up and come back with a pre-emergent material right before bud break then maybe skip that last glyphosate treatment after bud break.”

Roncoroni explained that the idea is for grower not to use glyphosate on weeds during the growing season.

Reserve Glyphosate for tough weeds such as field bindweed.

Roncoroni mentioned that he works with school districts and municipalities, and there are many of them want to ban the use of glyphosate.

“It’s not so much the glyphosate molecule; it’s that we have all used so much of it over the years,” he said. “Rely on preemergent materials early in the season and reserve glyphosate as a clean up at the end of the season.”

“My philosophy when I talk to people is to not ban it but to save it for needed use. Maybe we pretend that there are no herbicide alternatives available. We have annual grasses that are easy to kill, then use an alternative herbicide for that. But when you have weeds where you need that systemic benefit of glyphosate, then use it. It is a good molecule, and it has an important fit in weed control, but it does need to be used all the time,” Roncoroni said.

And of course, reading and following the herbicide label will maintain its safety.

2021-05-12T11:01:53-07:00August 23rd, 2018|

Study Forecasts Cost of Regulations on California Citrus Industry

Citrus Research Board Explains Cost Impacts on Growers

News Release From California Citrus Mutual

New regulations are expected to cost California citrus growers an average of $701 per acre per year, or $203 million annually statewide, according to a new study commissioned by the Citrus Research Board (CRB).

“Compliance with environmental regulations not associated with groundwater sustainability is estimated to increase costs by $17.7 million, or $67 per acre of citrus,” predicts Bruce A. Babcock, Ph.D., a professor in the School of Public Policy at UC Riverside who authored the study. “New labor requirements will increase costs by $112 million, or $357 per acre, once they are all phased in.”

“Babcock has presented a well-researched economic report that shows how new regulations will increasingly impact California’s citrus industry,” said CRB President Gary Schulz.

The report, Impact of Regulations on Production Costs and Competitiveness of the California Citrus Industry, also predicts that controlling the Asian citrus psyllid (ACP) “will increase costs by $65 million, or $248 per acre per year, if controls are extended to all citrus-growing regions.” Compliance training costs are estimated to increase costs by another $29 per acre, or $7.5 million for the state citrus industry.

“As I read and reread Dr. Babcock’s report, two things kept jumping off the page: one, ‘Cost increases borne by California’s citrus but not by … other citrus growing regions decrease the future competitiveness of California’s citrus industry’; and two, ‘… future compliance with these regulations is estimated to increase costs by $203 million, or $701 per acre per year,'” said California Citrus Mutual President Joel Nelsen. “When the cost of citrus at store level gets too expensive, consumers look for lower priced fruit. This UCR report paints a clear path for policy makers if their goal is to drive the citrus industry out of California and onto off-shore production areas.”

The 20-page report includes a breakdown of increases in labor costs, including California’s minimum hourly wage increases, which are scheduled to rise in annual increments to $15 over the next four years. The report also covers the projected cost increases of recent state legislation dealing with paid sick leave, payment rates for rest and recovery periods, overtime and workers compensation.

The section on insecticide treatment addresses grower cost of spraying for ACP, even though the severity of the problem currently differs greatly in various areas of the state. If ACP establishes itself in all citrus regions in the state, which the report says is “almost inevitable,” control efforts would amount to $39.5 million per year, according to Babcock. This would be in addition to the state-mandated tarping of fruit that is transported to packinghouses, at a cost of approximately $9 million per year.

According to the report, The Food Safety Modernization Act, which was passed in 2011 and is still being implemented, will not require major changes for growers who are already GFSI-certified (Global Food Safety Initiative compliant).

The impact of the Sustainable Groundwater Management Act (SGMA) is hard to predict, according to Babcock. “It will not be possible to calculate the impact of SGMA until each basin’s groundwater sustainability plans have been finalized,” he states. “Without new surface water supplies, it seems inevitable that some farmland that currently relies on groundwater will need to be fallowed to balance withdrawals with recharge rates.”

Babcock, a Fellow of the Agricultural and Applied Economics Association, has won numerous awards for his applied policy research. He received a Ph.D. in Agricultural and Resource Economics from UC Berkeley, and Master’s and Bachelor’s degrees from UC Davis.

The CRB administers the California Citrus Research Program, the grower-funded and grower-directed program established in 1968 under the California Marketing Act, as the mechanism enabling the state’s citrus producers to sponsor and support needed research. The full report on the Impact of Regulations on Production Costs and Competitiveness of the California Citrus Industry, as well as more information about the Citrus Research Board, may be read at www.citrusresearch.org.

2021-05-12T11:05:09-07:00August 22nd, 2018|

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