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Northwestern Illinois Agricultural Research and Demonstration Center Agronomy Day, July 17th

  • June 27, 2019

MONMOUTH, Ill. – The Northwestern Illinois Agricultural Research and Demonstration Center will host a Field Day on Wednesday, July 17. Join University of Illinois Department of Crop Sciences faculty, researchers, students, and Extension specialists as they address issues pertinent to the 2019 growing season.
The program will begin promptly on Wednesday, July 17 at 8:00 a.m. and is open to the public at no cost. Refreshments and BBQ sandwiches will be available at the end of the tour.…

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Layering Soil-Residual Herbicides in Soybean

  • June 20, 2019

Applying soil-residual herbicides with non-residual, foliar-applied herbicides can help reduce additional weed emergence following application and, therefore, reduce the need for another application later.  The “lateness” of this year’s soybean crop undoubtedly will decrease the number of acres where layered residuals are applied, but nonetheless keep in mind that labels for most soil-residual herbicides used in foliar applications include soybean growth stages or time intervals beyond which applications cannot be made.  Additionally, these labels include time intervals for rotational crops,…

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IDOA EXTENDS APPLICATION DATE TO APPLY DICAMBA

  • June 14, 2019

SPRINGFIELD, IL – The Illinois Department of Agriculture (IDOA) announced today it will extend the application date the herbicide dicamba can be applied on soybeans in Illinois for the 2019 growing season until July 15. In February, the Department approved state-specific labels allowing for dicamba use on soybeans only until June 30.  Dicamba is primarily used on soybeans to control post-emergence broadleaf weeds.
“Due to the extraordinary wet weather seen in this state during the spring planting season and with still over 50% of the soybean crop to be planted,…

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University of Illinois Weed Science Field Research Tour

  • June 5, 2019

The weed science program at the University of Illinois invites all weed management practitioners to our annual weed science field tour on Wednesday, July 10.  Please note the tour will begin at our off-campus field location (“The Lost Forty”) which is located on Cottonwood Road (County road 1700 east) approximately one-quarter mile north of County road 1850 North (see map).  Registration will begin at 8:00 a.m. and refreshments (coffee, juice, and doughnuts) will be available.  Preregistration is not required,…

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Weed Management on Prevented Planting Acres

  • May 29, 2019

Persistent wet field conditions have increased the likelihood that many farmers will opt to take the prevented planting option through their crop insurance policy.  Even though no crop will be planted, weed control practices still should be implemented to reduce seed production from summer annual weed species.  Any weed seed produced in 2019 will add to future weed control costs.  The old weed science adage “One year’s seedling equals seven years weeding” reinforces the need to adequately manage weeds on prevented planting acres.…

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Weed Management Reminders in a Wet Spring

  • May 17, 2019

Much of the vegetation visible from the road is comprised of winter annual species, including the now obvious yellow-flowered species cressleaf groundsel (a.k.a. butterweed) and yellow rocket.  Some summer annual weed species, including common lambsquarters, smartweeds giant ragweed and waterhemp, also have begun to emerge.  When field conditions become conducive for planting, several possible scenarios exist for the management of existing weed vegetation.  One possible scenario is that planting will occur before any type of weed management program (tillage or herbicide application) is implemented to control existing vegetation. …

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Considerations for dicamba application restrictions

  • May 6, 2019

On March 1, 2019 the Illinois Department of Agriculture (IDOA) announced it will require Special Local Needs labels (referred to as 24(c) labels) during the 2019 growing season for the four commercial dicamba-containing products labeled for use in dicamba-resistant soybean varieties.  The Special Local Needs labels include five elements, one of which is a June 30 application deadline.  IDOA recognizes the importance of this technology to Illinois soybean growers and is taking this proactive step to reduce the instances of damage to dicot plant species (including sensitive soybean,…

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Waterhemp Resistance to Group 15 Herbicides

  • March 15, 2019

The continual evolution of weed species and populations resistant to herbicides from one or more site-of-action groups represents one of the most daunting challenges facing weed management practitioners.  Waterhemp has evolved resistance to herbicides from more site-of-action groups than any other Illinois weed species, including resistance to inhibitors of acetolactate synthase (ALS), photosystem II (PSII), protoporphyrinogen oxidase (PPO), enolpyruvyl shikimate-3-phosphate synthase (EPSPS), hydroxyphenyl pyruvate dioxygenase (HPPD), and synthetic auxins.  The University of Illinois weed science program recently announced confirmation of waterhemp populations resistant to Group 15 herbicides (Table 1),…

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IDOA ANNOUNCES STATE-SPECIFIC RESTRICTIONS ON USE OF HERBICIDE DICAMBA ON SOYBEANS FOR 2019

  • March 1, 2019

Goal to reduce off-target movement of dicamba products
SPRINGFIELD, IL – The Illinois Department of Agriculture (IDOA) announced today it will require Special Local Needs labels, including new restrictions, for the use of the herbicide dicamba on soybeans in Illinois for the 2019 growing season. Dicamba is primarily used on soybeans to control post-emergence broadleaf weeds.
On February 15, IDOA notified the manufacturers of the three dicamba-containing products approved for over-the-top application to dicamba-tolerant (DT) soybeans that additional application restrictions will be required for the 2019 growing season.…

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Dicamba Buffers, Training and Licensing: What to Know for 2019

  • December 17, 2018

The United States Environmental Protection Agency (EPA) renewed the labels of three dicamba-containing products used in dicamba-resistant soybean varieties on October 31, 2018.  These renewed labels also contain new restrictions and requirements that did not appear on the original labels.  Each application must completely satisfy all label requirements and restrictions, but the following three new requirements might necessitate additional forethought and planning.
Additional in-field buffers
Fields that exist in counties that might harbor endangered terrestrial dicot plant species must have an in-field,…

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