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Make Sure You Know ALL the Changes for 2021 Dicamba Applications in Soybean

  • January 14, 2021

In late October 2020, the United States Environmental Protection Agency (US EPA) announced new five-year registrations for the dicamba-containing products XtendiMax, Engenia and Tavium.  These labels include new and/or additional application restrictions that were not included on previous labels.  Annual dicamba-specific training (which we hope begins soon) offered by the product registrants will undoubtedly cover many/all of the new label changes, but there are a few changes that some currently might not be aware of and might come as a bit of a surprise. …

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A Statement from the Illinois Department of Agriculture regarding the mailing of unsolicited seeds

  • July 30, 2020

“We are currently working with USDA’s Animal and Plant Health Inspection Service (APHIS) to address reports of unsolicited shipments of seeds from foreign countries. Anyone who receives unordered seeds in the mail should contact the Illinois Department of Agriculture by emailing the following information to First and Last Name, Phone Number and the number of packages received. Do not open the package, plant the seeds, or throw them out. Please keep all seeds unopened and with their original packaging and labels,…

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Weed Control in Wheat Stubble Fields

  • July 7, 2020

Wheat harvest marks the end of one cropping cycle and the beginning of a second.  In parts of central and southern Illinois, farmers frequently opt to plant double-crop soybean following wheat harvest, with hopes that the first “killing” frost will be late enough to allow the soybean to reach maturity.  Wheat stubble fields not planted with a second crop often become populated with a “crop” of summer annual (and sometimes perennial) weed species.  Unlike double-crop soybean,…

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Guidance for the Continued Use of Dicamba-Containing Products in Illinois

  • June 11, 2020

The Illinois Department of Agriculture recently issued a document containing guidance “to help pesticide dealers, commercial pesticide applicators and farmers understand the U.S. EPA order and the State of Illinois extension of the cut-off date for application.”  The document includes many frequently asked questions and how the Department interprets the guidelines from U.S. EPA for the continued use of existing stocks of these products whose registrations were vacated by a ruling of the Court of Appeals for the Ninth Circuit.…

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IDOA Statement on USEPA Cancellation Order-Use of Existing Stock

  • June 10, 2020

On June 3, 2020, in National Family Farm Coalition vs. U.S. Environmental Protection Agency, Case No. 19-70115, the United States Court of Appeals for the Ninth Circuit issued a ruling immediately vacating the registrations of Xtendimax, FeXapan and Engenia, all of which contain the herbicide dicamba. On June 8, 2020, the U.S. Environmental Protection Agency (EPA) issued a final cancellation order for these three dicamba products. The final cancellation order can be found here:

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Illinois Department Of Agriculture Statement on 9th Circuit Dicamba Ruling

  • June 5, 2020

On June 3, 2020, the United States Court of Appeals for the Ninth Circuit issued a ruling immediately vacating the registrations of Xtendimax, FeXapan and Engenia. The Ninth Circuit ruled that USEPA’s registrations of those products violated The Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA).  Pursuant to FIFRA, all pesticides sold, used, or distributed in the United States must be registered with the USEPA. Therefore, effective June 3, 2020, based on the Ninth Circuit’s ruling, Xtendimax,…

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Postemergence Herbicide Options to Manage Weeds in Dicamba-Resistant Soybean

  • June 5, 2020

The recent decision by the United States Court of Appeals for the Ninth Circuit to vacate the registrations of XtendiMax, Engenia and FeXapan has generated many questions about herbicide options to control weeds in dicamba-resistant soybean.  Tavium, a premixture of dicamba and S-metoachlor, remains in the marketplace and may be applied to dicamba-resisant soybean.  Keep in mind all restrictions with respect to application timing on the federal Tavium label (i.e., within 45 days of planting) and the Illinois 24 (c) label (i.e.,…

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Effective Immediately: No Additional Distribution, Sale or Application of Certain Dicamba-Containing Products

  • June 4, 2020

On June 3, the United States Court of Appeals for the Ninth Circuit issued their decision that effectively vacated the registrations of the dicamba-containing products XtendiMax, Engenia and FeXapan.  Since this ruling many questions have arisen, including the fate of these products already in the commercial channel.  During a recent conversation with officials at the Illinois Department of Agriculture, officials presented their interpretation of the court ruling as follows:
It is the current interpretation of the Illinois Department of Agriculture that the dicamba-containing products XtendiMax,…

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Replanting Dicamba Soybean

  • May 18, 2020

Replanting soybean fields or areas of fields likely will occur after soybean stand loss to recent cold temperatures or saturated soil conditions.  The following are general reminders about dicamba application timings and restrictions for Illinois soybean.

  • Air temperature restriction: do not apply approved dicamba-containing products if the air temperature in the field at the time of applications is greater than 85 degrees Fahrenheit or if the National Weather Service’s forecasted high temperature for the nearest available location for the day of application exceeds 85 degrees Fahrenheit. 

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Residual Soybean Herbicides Applied Postemergence

  • May 7, 2020

Soil-residual herbicides are important components of integrated weed management programs.  Reducing the number of weeds exposed to foliar-applied herbicides helps reduce the selection intensity for weeds resistant to foliar-applied herbicides.  Residual herbicides applied with postemergence soybean herbicides also can reduce the need for a second postemergence application.  However, simply applying a soil-residual herbicide does not guarantee the product will provide the desired level or duration of weed control.  Many edaphic and environmental factors influence the level of weed control achieved by soil-residual herbicides.…

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