Timorex Gold, Broad-spectrum Biofungicide

Biofungicide Timorex Gold to Help Western Vegetable Growers Fight Disease Pressure

By Patrick Cavanaugh, Farm News Director

The U.S. EPA has approved Timorex Gold, a new broad-spectrum reduced-risk biopesticide that is already a leading biofungicide in Latin America to control black sigatoka, a leaf-spot fungal disease on bananas, for various domestic crops such as tomatoes, strawberries, as well as other berries, cucurbits, grapes, tree nuts, and lettuce.

Stockton photo Strawberries & Blueberries beautiful!Timorex Gold is well positioned for American crops because it is known to be effective on powdery mildew and Botrytis on strawberries and tomatoes, plus bacterial blight on tomatoes.

Sarah Reiter, country manager of STK Stockton, an innovative Israeli company that opened its U.S. headquarters in Davis, CA. “We are very excited about the products performance we are seeing in areas where it is registered,” said Reiter. “We are happy with the label the EPA granted us. We still await registration in California and anticipate it next year or possibly late this season.”

Reiter noted the highly effective active ingredient in Timorex Gold, the plant extract Meluleuca alternifolia, or tea tree oil, gives growers a powerful new tool to control both bacteria and fungi diseases. “We know growers do not have a lot of choices for bacterial control,” said Reiter, “so any new active ingredient is a good thing. This product has the added bonus of being a fungicide too.”

“Timorex Gold has been established as a primary control product for sigatoka because it performs so well,” Reiter commented. “Growers use it because of its profile, and it’s easy to use. And while the product is a biopesticide, once the growers get it in their hands, they tend to forget it’s a biopesticide because it performs as if it is a synthetic material.”

timorexgold STK Stockton Group“As an industry we have been looking for this for quite a long time,” Reiter reflected. “While biologics have been around for a century, historically, growers would have to give up some levels of control in order to implement them into a conventional program. We do not see that loss when using Timorex Gold against sigatoka disease.”

“Our expectation in the U.S. is that growers will see that same high level of performance when they use the product here,” Reiter said. “And since Timorex Gold is a biological, there is no concern for Maximum Residue Level (MRL) data because there is no residue on the crop. The product will have very short re-entry intervals (REIs) and preharvest intervals (PHIs), as well as flexible application intervals, a strength that growers like because it gives them a lot of flexibility to implement the product into their program when they need to instead of having to manage REIs and PHIs.”

In addition, Timorex Gold has a very low designation of FRAC 7¹, which means the product has a unique mode of action that can be used in alternate succession with other fungicide modes of action to prevent the development of resistance.

Concurrently, STK Stockton continues to invest heavily in its new technology pipeline with the intention of bringing more innovative biopesticides into different markets. As part of these efforts, the company has recently announced the appointment of Shay Shaanan as the new vice president R&D, leading the company’s activities. The former global development manager of the fungicides division at ADAMA (formerly Makhteshim Agan), Shaanan has over 15 years of experience in research and commercialization of crop protection products.

“Having Shay join our team marks another significant milestone in our growth strategy. It reflects our commitment to advance our technologies and provide the agriculture industry with new solutions for sustainable agriculture.” explained Guy Elitzur, CEO of STK Stockton. “Shay will lead our R&D and will be of enormous value in moving our company forward. Additionally, we will be looking for in-licensing partners, including bio companies in the U.S. to broaden our product offerings.” said Elitzur.

The products of Stockton will be sold under the Syngenta brand for Botrytis and Powdery Mildew in ornamentals globally. The biofungicide technology complements the comprehensive fungicide portfolio of Syngenta and will help to provide its customers with innovative sustainable tools for disease resistance management.

“We are very excited about this agreement,” Elitzur commented, “as Syngenta is the perfect partner for our new products in ornamentals.”

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¹FRAC is a Specialist Technical Group of CropLife International (CLI) that provides fungicide resistance management guidelines to prolong the effectiveness of “at risk” fungicides and to limit crop losses should resistance occur.

The main aims of FRAC are to:

  1. Identify existing and potential resistance problems.
  2. Identify existing and potential resistance problems.
  3. Collate information and distribute it to those involved with
    fungicide research, distribution, registration and use.
  4. Provide guidelines and advice on the use of fungicides to reduce the risk of resistance developing, and to manage it should it occur
  5. Recommend procedures for use in fungicide resistance studies.
  6. Stimulate open liaison and collaboration with universities, government agencies, advisors, extension workers, distributors and farmers.
2021-05-12T11:05:54-07:00June 28th, 2016|

More Rain, More Fungi, More Use for Multiuse Fungicides

With More Rain, More Fungi, More Use for Multiuse Fungicides

By Patrick Cavanaugh, Deputy Editor

With spring rains, many vegetables, tree fruits, grapes and nuts succumb to fungi pressure. However, during the past few years, only trivial amounts of spring rain have moistened California’s soil and lulled farmers to abandon their vigilant watch for fungi proliferation. But now, the strong likelihood of El niño-driven wet weather this spring could catch growers off-guard.

“We have an El niño coming that has already been tagged, ‘Too big to fail,’ which will bring a lot of rain. So it’s really important for folks to think about switching gears this year on their pest management mindset. With more rain, comes more fungi disease. We always see really high pressure disease years with rain,” said Kate Walker a technical services representative with BASF Corporation on the Central Coast, who advises use of a multiuse fungicide product already on hand.

Anthracnose in Strawberries, UC Statewide IPM Project

Anthracnose in Strawberries (Source: UC Statewide IPM Project

Strawberries, in particular, are vulverable to fungi. “We have heard from our strawberry growers,” said Walker, “that these fungal diseases are always present in California, but they vary significantly in their severity year-to-year depending on the weather,” noted Walker.

“One major disease that accompanies higher moisture, Anthracnose, often called leaf, shoot, or twig blight,” Walker explained, “results from infection caused by the fungus Colletotrichum. I’ve heard some growers have not experienced Anthracnose issues in 10 years,” said Walker. “As it emerges and becomes more problematic in strawberries, farmers really need to know which types of fungicides to use to manage this and other diseases.”

“It is very important for farmers and PCAs to walk through and scout their fields for disease,” Walker said, “and when they identify one, to become very aggressive with their fungicide management program. So, as representatives for BASF, we are lucky to have multiuse fungicide products available to control these diseases, such as Merivon Fungicide.”

Walker noted Merivon has two modes of action, “so it is very broad-spectrum. Typically we position Merivon in California for use on powdery mildew and Botrytis, but what we seldom talk to growers about is its utility for Anthracnose. We see a lot more  Anthracnose in Florida and on the East Coast due to the increased rains; whereas, it usually doesn’t come through every year in California. So it is good to for farmers and PCSs to know that the product with which they are familiar for use in Botrytis, is also very effective with other issues, like Anthracnose.”

Walker offered, “Another very common disease that flourishes with increased rain, Rhizopus, occurs post-harvest, after the berries are picked up from the field. Again, Merivon has utility for Rhizopus as well, so growers don’t have to change or reinvent their program to manage these diseases.”

Walker said, “Rhizopus is an airborne bread mold. It is very common in the air and in the soil, so anytime a fruit or a nut is exposed to the spores blowing in the wind, it is vulnerable to infection with this disease.”

2016-05-31T19:27:02-07:00December 4th, 2015|

ADAMA Captan Gold ® 4L Now Registered in California

ADAMA Captan Gold ® 4L Fungicide Gets EPA “Go Ahead” for California Strawberries, Tree Fruits

 

Adama LogoADAMA has received EPA approval for Captan Gold 4L liquid fungicide for use on strawberries, tree fruits and other specialty crops. A multi-site contact fungicide, Captan Gold 4L penetrates fungal spores, protecting high-value crops against tough diseases like anthracnose, botrytis (gray mold), brown rot and scab.

“ADAMA Captan Gold 4L is the only liquid captan with a ‘Caution’ signal word,” states the company’s national marketing leader Sara Zinck. “Backed by more than 50 years of captan manufacturing experience, Captan Gold 4L delivers excellent efficacy through its multi-site mode of action, making it a trusted partner in fungicide resistance management.”

Gray Mold on Strawberry, UC IPM

Gray Mold on Strawberry, UC IPM

 

Captan Gold 4L on strawberries

For use on California strawberries, Captan Gold 4L is labeled for applications at 2 to 3 quarts per acre. Early applications at pre-bloom and bloom offer the best fruit protection from botrytis. Follow up applications can be applied at 7 to 14 day intervals up to harvest. Application rates are not to exceed 24 quarts per acre per crop cycle.

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ADAMA Agricultural Solutions Ltd (formerly Makhteshim Agan Industries) is a leading global manufacturer of crop protection solutions. With a comprehensive range of high-quality, differentiated and effective products, ADAMA strives to provide accessible, easy-to-use solutions that simplify the user experience while improving crop yields.

For more information, call 866-406-6262 or visit Adama.com.

Always read and follow label directions. Captan Gold® is a registered trademark of an ADAMA Group Company. ©2015 Makhteshim Agan of North America, Inc. d/b/a ADAMA.

Featured photo: Strawberries, UC IPM

2016-05-31T19:28:14-07:00June 16th, 2015|
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