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Precautions for Dicamba Use in Xtend Soybeans

  • November 27, 2017

The extension weed science programs at The Ohio State University, Purdue University, and the University of Illinois recently collaborated to produce suggestions and precautions for use of dicamba in dicamba-resistant soybean.  The United States Environmental Protection Agency issued amendments to the Xtendimax, Engenia, and FeXapan labels last October, and this new extension weed science publication offers additional suggestions to help further reduce off-target dicamba movement.  Dicamba Precautions

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Label Changes for XtendiMax, Engenia, and FeXapan

  • November 10, 2017

On October 13, the United States Environmental Agency (EPA) issued several amendments to the XtendiMax, Engenia, and FeXapan labels that will impact all purchases and applications of these products in 2018 and beyond.  These amendments can be summarized as:
1) XtendiMax, Engenia, and FeXapan are now restricted use products (RUP), permitting only certified applicators to purchase and/or apply these products.
2) Prior to applying these products in 2018, applicators must complete dicamba or auxin-specific training.  Two of the labels further specify training will be required annually.…

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Weed Seed Destructor Field Demonstration Reminder

  • October 5, 2017

Here is a great opportunity to see a novel weed management tool!  Dr. Adam Davis, USDA/ARS weed ecologist at the University of Illinois, will host a field demonstration of the Harrington Seed Destructor (HSD) on October 12.  The HSD will be run several times during the tour, so please attend even if you are not able to arrive exactly at 1:00 p.m.  The following news release, written by Lauren Quinn, provides more details about the field demonstration.…

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The Dicamba Dilemma in Illinois: Facts and Speculations

  • July 18, 2017

Only a short time ago, many agricultural professionals were optimistic Illinois would somehow be “spared” the incidents of off-target damage caused by dicamba that continue to plague several states to our south.  The recent preponderance of evidence (observations made traveling the state, stories on social media, an increasing number of pesticide misuse complaints filed with the Illinois Department of Agriculture (IDOA), etc.), suggests otherwise.  Instances of soybean demonstrating symptoms of exposure to dicamba have greatly increased over the past two weeks and it’s nearly certain the number of affected acres will continue to rise. …

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Program set for the 36th annual field day at the research center in Monmouth

  • June 22, 2017

The program is set for the 36th annual University of Illinois’ Northwestern Agricultural Research Center Field Day. The program will begin at 8 am on Wednesday, July 26th.
Topics and speakers will include:

  • Lessons from 35+ Years of Research at the Northwestern Illinois Ag Research Center – Emerson Nafziger – Extension Specialist, Crop Production, University of Illinois
  • Reducing Tile Drainage Nitrate Loss: Chippin’ Away with Woodchip Bioreactors – Laura Christianson –

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What to do if you suspect herbicide drift

  • June 8, 2017

Each year, the Illinois Department of Agriculture (IDOA) receives approximately 120 pesticide misuse complaints, of which 60% are pesticide drift complaints.  Neighborly discussions before pesticides are applied are important so applicators understand if sensitive plants are growing near the application site.  In the unfortunate case that drift has occurred, it’s a good idea to know the basics of the complaint process and what resources are available to you.
Before doing anything, both parties should make an effort to discuss the suspected drift incident and rule out other possible causes of the damage. …

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Postemergence Herbicides in Corn

  • May 25, 2017

The 2017 Illinois corn crop currently is at various stages of development.  Applications of postemergence corn herbicides continue to be made across areas of Illinois, although the recent precipitation has delayed applications in some areas.  Even though applications may be delayed, adequate soil moisture coupled with warm temperatures will certainly promote rapid growth of emerged weeds.
Properly timing the application of the postemergence herbicide is critical toward achieving the goal of removing weed interference from the corn crop before the weeds adversely impact (i.e.,…

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Corn Replanting and Herbicide Considerations

  • May 9, 2017

Following the recent and excessive precipitation, some corn replanting likely will occur when soil conditions are conducive.  We hope that replanting occurs only in small areas of a given field, but in some situations entire fields may have to be replanted.  While there are many agronomic considerations associated with replanting, some weed control/herbicide issues also should be considered.
Herbicide-resistance traits in the replanted hybrids should be taken into account.  For example, if you initially planted a glyphosate-resistant corn hybrid and have areas that need to be replanted,…

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University of Illinois Weed Science Field Research Tour

  • May 5, 2017

The weed science program at the University of Illinois invites all weed management practitioners to our annual weed science field tour, which will be held on Wednesday, June 28 at the Crop Sciences Research and Education Center (a.k.a. South Farm), located south of campus on Wright Street extended.  Registration will begin at 8:00 a.m. and refreshments (coffee, juice, and doughnuts) will be available.  Preregistration is not required, but please let us know in advance if you will be bringing a large group of participants so we can plan accordingly for meals.…

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Dry Soils and Residual Herbicides

  • April 26, 2017

Decades ago it was very common for the majority of corn and soybean acres in Illinois to be treated with one or more soil-residual herbicides before crop/weed emergence.  During the 1980s, commercialization of broad-spectrum, postemergence herbicides began the shift away from widespread use of soil-residual herbicides; products such as Basagran, Classic, Accent and Pursuit contributed to the early adoption of postemergence weed control programs.  The era of total postemergence weed control reached its zenith following the widespread adoption of glyphosate-resistant crops and the concomitant use of glyphosate.  …

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