pest and disease control Archives - California Agriculture News Today

When it Comes to Drones, No Limit with Aerobotics

Aerobotics Drones Detects Disease Early in Orchards

By Mikenzi Meyers, Associate Editor

Drones are continuing to make a big appearance in the agriculture industry, and with new technology from Aerobotics, they’re not leaving the sky any time soon. James Paterson, co-founder and CEO of Aerobotics, has news of a fully automatic solution for collecting aerial data fields to help maintain healthier trees.

“It’s to detect disease problems in the orchard, and the reason that’s such a difficult problem is that it’s done as a manual process at the moment, called scouting,” Paterson said.

Although scouting has always been a go-to method, it only guarantees certain points of the field to be checked. Paterson said that the new Aerobotics system will allow the entire farm to be monitored down to each individual tree.

“So what our system does is it tracks each tree, and if it identifies that a tree is under stress, it sends a scouting route to the user’s smartphone for them to go and investigate,” Paterson explained.

Aerobotics has a network of accessible drones available for those farmers who do not have their own. All they need is the software system, and to visit aerobotics.com to get started.

California Ag Today2021-05-12T11:05:04-07:00March 27th, 2019|

Pests and Diseases Cause Worldwide Damage to Crops

Pests and Pathogens Place Global Burden on Major Food Crops

By Pam Kan-Rice, UC Agriculture & Natural Resources

Scientists survey crop health experts in 67 countries and find large crop losses caused by pests and diseases

Farmers know they lose crops to pests and plant diseases, but scientists have found that on a global scale, pathogens and pests are reducing crop yields for five major food crops by 10 percent to 40 percent, according to a report by a UC Agriculture and Natural Resources scientist and other members of the International Society for Plant Pathology. Wheat, rice, maize, soybean, and potato yields are reduced by pathogens and animal pests, including insects, scientists found in a global survey of crop health experts.

At a global scale, pathogens and pests are causing wheat losses of 10 percent to 28 percent, rice losses of 25 percent to 41 percent, maize losses of 20 percent to 41 percent, potato losses of 8 percent to 21 percent, and soybean losses of 11 percent to 32 percent, according to the study, published in the journal Nature, Ecology & Evolution.

Viruses and viroids, bacteria, fungi and oomycetes, nematodes, arthropods, molluscs, vertebrates, and parasitic plants are among the factors working against farmers.

Food loss

“We are losing a significant amount of food on a global scale to pests and diseases at a time when we must increase food production to feed a growing population,” said co-author Neil McRoberts, co-leader of UC ANR’s Sustainable Food Systems Strategic Initiative and Agricultural Experiment Station researcher and professor in the Department of Plant Pathology at UC Davis.

While plant diseases and pests are widely considered an important cause of crop losses, and sometimes a threat to the food supply, precise figures on these crop losses are difficult to produce.

“One reason is because pathogens and pests have co-evolved with crops over millennia in the human-made agricultural systems,” write the authors on the study’s website, globalcrophealth.org. “As a result, their effects in agriculture are very hard to disentangle from the complex web of interactions within cropping systems. Also, the sheer number and diversity of plant diseases and pests makes quantification of losses on an individual pathogen or pest basis, for each of the many cultivated crops, a daunting task.”

“We conducted a global survey of crop protection experts on the impacts of pests and plant diseases on the yields of five of the world’s most important carbohydrate staple crops and are reporting the results,” McRoberts said. “This is a major achievement and a real step forward in being able to accurately assess the impact of pests and plant diseases on crop production.”

The researchers surveyed several thousand crop health experts on five major food crops – wheat, rice, maize, soybean, and potato – in 67 countries.

“We chose these five crops since together they provide about 50 percent of the global human calorie intake,” the authors wrote on the website.

The 67 countries grow 84 percent of the global production of wheat, rice, maize, soybean and potato.

Top pests and diseases

The study identified 137 individual pathogens and pests that attack the crops, with very large variation in the amount of crop loss they caused.

For wheat, leaf rust, Fusarium head blight/scab, tritici blotch, stripe rust, spot blotch, tan spot, aphids, and powdery mildew caused losses higher than 1 percent globally.

In rice, sheath blight, stem borers, blast, brown spot, bacterial blight, leaf folder, and brown plant hopper did the most damage.

In maize, Fusarium and Gibberella stalk rots, fall armyworm, northern leaf blight, Fusarium and Gibberella ear rots, anthracnose stalk rot and southern rust caused the most loss globally.

In potatoes, late blight, brown rot, early blight, and cyst nematode did the most harm.

In soybeans, cyst nematode, white mold, soybean rust, Cercospora leaf blight, brown spot, charcoal rot, and root knot nematodes caused global losses higher than 1 percent.

Food-security “hotspots”

The study estimates the losses to individual plant diseases and pests for these crops globally, as well as in several global food-security “hotspots.” These hotspots are critical sources in the global food system: Northwest Europe, the plains of the U.S. Midwest and Southern Canada, Southern Brazil and Argentina, the Indo-Gangetic Plains of South Asia, the plains of China, Southeast Asia, and sub-Saharan Africa.

“Our results highlight differences in impacts among crop pathogens and pests and among food security hotspots,” McRoberts said. “But we also show that the highest losses appear associated with food-deficit regions with fast-growing populations, and frequently with emerging or re-emerging pests and diseases.”

“For chronic pathogens and pests, we need to redouble our efforts to deliver more efficient and sustainable management tools, such as resistant varieties,” McRoberts said. “For emerging or re-emerging pathogens and pests, urgent action is needed to contain them and generate longer term solutions.”

The website globalcrophealth.org features maps showing how many people responded to the survey across different regions of the world.

In addition to McRoberts, the research team included lead author Serge Savary, chair of the ISPP Committee on Crop Loss; epidemiologists Paul Esker at Pennsylvania State University and Sarah Pethybridge at Cornell University; Laetitia Willocquet at the French National Institute for Agricultural Research in Toulouse, France; and Andy Nelson at the University of Twente in The Netherlands.

UC Agriculture and Natural Resources researchers and educators draw on local expertise to conduct agricultural, environmental, economic, youth development and nutrition research that helps California thrive. Learn more at ucanr.edu.

California Ag Today2021-05-12T11:05:06-07:00February 11th, 2019|

Greensmith APN Expanding Services

Greensmith APN Ensures the Best of Both Worlds for Biological Control

By Mikenzi Meyers, Associate Editor

Integrated Pest and Crop Management, otherwise known as IPM, is a critical component of all forms of crop production. Perhaps one of the most important aspects of IPM is the practice of biological control, which includes the control of any pests or invasive plants by using other organisms to monitor their populations.

Lee Tecklenburg of Greensmith APN (Advanced Plant Nutrition), works with both conventional and organic operations in order to help maximize biological control.

Greensmith APN is currently working to put together and market products that work simultaneously with biocontrols on the nutrient side of things.

“We’re trying to create a situation where the plants can thrive and become more tolerant and more resistant,” Tecklenburg explained.

This includes integrating all parts of production, whether it be organic or conventional, in order to tie the entire system together.

“It’s all-encompassing. If you can register something organically today, a conventional grower can use it as well, and it’s not the reverse,” Tecklenburg added. “This approach ensures that everyone is able to benefit from the program Greensmith APN is creating.”

California Ag Today2021-05-12T11:01:50-07:00January 21st, 2019|

Boost Biomes Working on Disease Resistance

Researching the New Frontier

By Jessica Theisman, Associate Editor

California Ag Today recently spoke with Robert McBride of Boost Biomes. McBride explained his vision for the company.

“It’s the new frontier; It has not been researched that much,” he said.

He told us that the company is working on getting the correct microbes into the soil to enhance plants’ productivity.

“I would say the key thing that we think about in terms of getting the right microbes into the soil is that microbes are kind of like a plant’s second genome,” McBride said.

Genomes have the ability to impact the plant’s phenotype, along with the way the plants grow in different temperatures and soil salinity levels.

“They can change the flavor of the fruits and it is all controlled by the microbes in the rhizosphere,” McBride explained.

Boost Biomes is interested in controlling pest resistance. The microbiome shifts to a state that is protective.

“What we would like to do is take soils that are not protective and encourage that shift to happen more quickly,” McBride said.

Boost Biomes takes advantage of the natural microbes in the soil and rhizosphere that protect the plants.

“We are trying to identify the right network to put into the soil to get into the rhizosphere to make the plants resistant against diseases,” McBride explained.

California Ag Today2021-05-12T11:05:10-07:00July 18th, 2018|

CAPCA’s Terry Stark: Biopesticides More Mainstream

Stark Speaks About CAPCA and its Role in the Biopesticide Industry.

By Patrick Cavanaugh, Editor

Terry Stark, President and CEO of California Association of Pest Control Advisors (CAPCA,) told 140 attendees at the Biopesticide Industry Alliance semi-annual early April meeting in Sacramento, what his organization thinks about the softer pest and disease control products.

“CAPCA represents 3,000 members of the 4,000 licensed-PCAs in California.

We have expanded our educational outreach through CAPCA-ED. We run 40 seminars annually throughout the state to aid all license-holders to improve their categories,” Stark announced,” said Stark.

“The regulatory burden pushes us to be better and more advanced,” Stark said. “CAPCA has 16 chapters, and each chapter has a director seated on the state board. My Chairman of the board is Jeremy Briscoe a Certis USA national manager. So I believe CAPCA is very well integrated with the biopesticide industry. Jeremy is the first representative that is a non-retail, non-independent to serve as the chair of CAPCA. This is a big move in the mentality of what we do,” said Stark.

CAPCA has traditionally centered on the San Joaquin Valley – production agriculture – the heart and soul of diversified agriculture and the money. “However, in the last 10 years, the wine industry has taken a step higher than the our other crops. All of a sudden we have Napa, Sonoma, Paso Robles, and southward to Santa Maria and Ventura County.”

Stark explained that everything west of I-5 tended to be the “softer side” of PCAs and chemical use in California. “I say that with respect because the wine industry was looking for ways to use less conventional products, ways to brand both organically and sustainability and with lower tolerances for their products. That caught on solidly seven or eight years ago.” Stark continued, “My largest independent PCAs are between Mendocino and San Francisco.”

“Like my Ventura guys and gals, they use more biological controls by releasing a lot of beneficials,” said Stark. “And it’s hard to come in with a hard-core application and maintain your beneficial populations,” he said.

When Stark was asked to speak at the Biopesticide Alliance meeting, he was asked to talk about perceptions. “I reflected on what I saw as a manager when they hired me to come to CAPCA. You talk about perception of biopesticides, with all due respect to my membership, 30 percent think that it’s one way or the highway.

In the central part of the state, from Kern County and throughout the desert valleys, it’s still spray and run. It’s big business, big acres. But it has its place,” said Stark.

He spoke about California being a hodgepodge of the most invasive species in the world, with many new pests coming in seemingly every week.

“Our entire citrus industry is facing Asian Citrus Psyllid which vectors the deadly citrus greening disease; we just survived the Glassy-winged sharpshooters in the wine industry; and, we’ve got Shot-hole bores coming to avocados. This represents huge production areas,” he said.

CAPCA has recognized that there are new ideas in pest and disease control and has moved towards being able to incorporate other chemistries, pheromones, and other items into the tool chest.

CAPCA’s Aging Demographics

Stark shared some demographics of CAPCA. “In CAPCA meetings, I don’t see a lot of dark-haired people sitting in the room. I don’t see a lot of females sitting in the room.

Our gender is 10-15 percent females,” he said.

Seventy five percent of my membership has 16-plus years of experience as PCAs. CAPCA also manages 1,000 Certified Crop Advisor (CCAs) who focus on nutrient recommendations, and the same demographics carry over to them. Of that, 35 percent have 30-plus years of experience. Do you think many will work past 30 years?

CAPCA’s last membership survey was done in 2010. We are projecting a 20% loss of membership by 2015. And that continues outward in a five-year cycle.

Through the Department of Pest Regulations we are only testing maybe 12-15 percent maximum replacements with young PCAs coming into the cycle.

How do we survive? We are turning to electronics, iPhones, and iPads.

PCAs have to be licensed in California if you are using restricted-use materials, soliciting for sale, and/or acting as an expert thereof. That takes care of the whole sales group too.

So, in biopesticides, you’re outside of that umbrella in most ways. You have some products that you to play with, but overall, that gives a “softer approach” for the younger PCAs to look at.

Working Areas of PCAs

Sixteen percent of PCAs work in field and row crops; 34 percent in trees & vines, the only ones getting water this year; vegetables at 12 percent; and turf and ornamentals –10 percent. Turf and ornamentals in California drop 50 percent in the last 5 years with the collapse of the housing and commercial real estate industries, plus golf courses, they have had a pullback. So our members have moved to retail and other areas.

If you are in PAC and you are in retail, you represent 30 percent of the industry. Eighteen percent are independents, and that means you truly do your own thing: if you have alfalfa, you have 20,000 acres you’re looking at; if you have citrus, you’ve got 3-5,000 acres; if you have vineyards, you’d better have 2-3000 acres to pay for it—if you want to make big money—and you’re working 7 days a week to do that. Seventeen percent are in-house; these are the Paramount’s and the Boswells of the industry. They hire CCAs and PCAs like full-time employee of the ranch.

The dynamics of I-5 is not moving into the Central Valley or into the southern counties. You have pockets of Los Angeles and Santa Barbara where you have nursery stocks, that‘s always been kind of open to the biopesticides industry and its products.

What I think has made the biopesticide industry successful, beyond all of your research, hard work and marketing, are the opportunities and the new wave of using your thumbs, and twitter, and communications, and Facebook, and social media in general. The outreach that you can do your business on the iPhone and still drive down the road, answering your clients’ questions has enabled the “boutique” industry in the last 5 years to come closer to the mainstream because customers don’t have to do any special work to find out about you. You are in their feed lines of information. These are important tools,” said Stark.

“California is a highly-regulated environment, so electronics has complemented other resources. I think the known fact that many products are less toxic is a huge benefactor,” he said.

“Take the Light Brown Apple Moth, which ended up being a environmental community PR campaign that kicked food and agriculture’s butt in California. And now every fruit tree in Santa Cruz is going to die from the apple moth. You can’t even move the firewood because it will contaminate the rest of the area,” Stark said.

The unknown elements of a pheromone to treat the moth were a big problem because the public did not understand, and the industry took it for granted. “The pheromone is about as soft and appropriate as you can get in the marketplace,” said Stark. “But we need to approach the public in a different way. And I think the biopesticide industry is doing a much better job,” he said.

“I’d be remiss with all of the large companies sitting in the room, the BASF’s, Syngenta’s, Bayer’s, the Valent’s—all have learned to adopt and bring into their tool chest additional products that can complement their conventional materials and usually make the grower more profit,” noted Stark.

“CAPCA doesn’t get into this much, but we have a lot regulatory obligation responsibility to protect the field worker. The toxicity and the life of the product go a long way in how you get back into the field,” he said.

“So, in the biopesticide world, you have a better opportunity of targeting the exact pest you need to target. It’s not a broad-spectrum-type deal. So that gives you the advantage. My PCAs see that– my 50 percent younger side in the house – sees that. And that’s a positive for this industry,” Stark said.

IPM is not a word that is understood until you get to California. CAPCA cannot do anything in his recommendation without being CEQA-oriented (California Environmental Quality Act) must look for alternative uses before any restrictive material can be made; otherwise he is in violation of his own recommendation. IPM, and biopesticide products fit that requirement to make that check mark when they do that.

“In addition, biologicals are lower priced than they ware 7-8 years ago. And that’s good because the grower doesn’t spend a dime more than they have to. If you think PCAs are out there pounding product or fertilizer on, and the farmer is not making any money, just three minutes later in the coffee shop, that guy is fired and another is hired,” Stark said.

“It is important to the sustainability in going forward, when you have a regulatory environment like we do in California. We have a built-in arena here and people are always listening to what can be done better and still make a profit. In my opinion, you are off to the races and biopesticides are mainstream now,” noted Stark.

If you can hit 15-20% of the marketplace, it’s been a great quarter-century run for you to get there and I think the CAPCA membership is looking forward to a long-lasting relationship.

He reminded attendees of the popular CAPCA Conference, Oct. 19-21, 2014 at the Disneyland Hotel in Anaheim. “I have 1,300 attendees and 150 exhibitors. What better place to be than with 800-900 license holders. It’s all relationships. Once you get the relationship, your social media, and your electronics, your product will sell itself,” Stark concluded.

Patrick Cavanaugh2016-05-31T19:35:25-07:00June 15th, 2014|