We have several articles on the Illinois Field Crop Disease Hub that have some timely information for you. First, a discussion on bacterial leaf streak of corn, which was detected last week in Illinois. Next, part one of our series on corn nematodes. Finally an update on corn tar spot and what to keep in mind with that disease this season.
the articles can be found by clicking this link. If interested,…
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.…
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: https://www.epa.gov/sites/production/files/2020-06/documents/final_cancellation_order_for_three_dicamba_products.pdf.
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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,…
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.,…
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,…
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.
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Temperatures over most of Illinois dropped to the upper 20s or low 30s on Saturday morning, May 9. This resulted in damage or even death to emerged and emerging corn and soybeans. The extent of damage was closely tied to when fields were planted.
Corn planted during the warm part of April—the first week—was up and growing (slowly) by May 1, with limited leaf area. In some fields, emerged stands were already subpar, especially in the wettest parts of the state,…
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.…
Both corn and soybean planting progressed at about normal speed into May, with 56 percent of the Illinois corn crop and 31 percent of the Illinois soybean crop planted by May 3. Unfortunately, the period of warmer, drier weather we have been hoping for has not yet materialized.
Over the ten days through May 5, about two-thirds of Illinois has gotten from 3 to more than 6 inches of rainfall. Temperatures have not cooperated very well,…