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Illinois to host crop sciences field day near Monmouth in July

  • July 6, 2018

MONMOUTH, Ill. – The Northwestern Illinois Agricultural Research and Demonstration Center near Monmouth has scheduled a field day for July 18. University of Illinois crop sciences faculty, researchers, students, and Extension specialists will address issues pertinent to the 2018 growing season.
The program will begin promptly at 8 a.m. on Wednesday, July 18, and is open to the public at no cost.
Weather permitting, presentations will take place outside next to research plots. Participants will board buses to tour portions of the farm.…

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Reminder…University of Illinois Weed Science Field Research Tour

  • June 11, 2018

We would like to take this opportunity to once again extend the invitation to attend the 2018 University of Illinois Weed Science Field Day, to be held Wednesday, June 27th at the University of Illinois Crop Sciences Research and Education Center, located immediately south of the main campus on South Wright Street.  Coffee and refreshments will be available under the shade trees near the Seed House beginning at 8:00 a.m.  The tour will provide ample opportunity to look at research plots and interact with weed science faculty,…

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Try togetherness: Study promotes cooperative weed management to curb herbicide resistance

  • June 6, 2018

The following article was written by Lauren Quinn, media specialist in the College of Agricultural, Consumer and Environmental Sciences at the University of Illinois.  The article describes recently publiched research, lead by Dr. Adam Davis, a research ecologist with USDA-ARS and adjunct professor in the Department of Crop Sciences, that examined cooperative weed management as a tool used against the challenges of herbicide-resistant waterhemp.  The following quote from Dr. Davis succinctly summarizes the research: “The crux of the story is that if you do good stuff and you aggregate it at larger spatial scales,…

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Residual Soybean Herbicides Applied Postemergence

  • June 5, 2018

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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Corn Growth Stage and Postemergence Herbicides

  • May 30, 2018

The labels of most postemergence corn herbicides allow applications at various crop growth stages, but almost all product labels indicate a maximum growth stage beyond which broadcast applications should not be made, and a few even a state minimum growth stage before which applications should not be made.  These growth stages are usually indicated as a particular plant height or leaf stage; sometimes both of these are listed.  For product labels that indicate a specific corn height and growth state,…

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University of Illinois Weed Science Field Research Tour

  • May 3, 2018

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 27 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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The Illinois “Spray School”

  • March 29, 2018

Beginning in 1949, a conference was organized by faculty and staff from several departments at the University of Illinois to provide clientele and stakeholders with the latest pest management research and recommendations.  The conference was brought into existence by Dr. H.B. “Pete” Petty, the first extension entomologist with the Cooperative Extension Service at the University of Illinois, to meet the educational needs of Illinois pest management practitioners.  From its inception in 1949 through 1986, the conference was known as the Illinois Custom Spray Operators’ Training School (often referred to as Spray School),…

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Dicamba: What is Success or Failure in 2018?

  • March 22, 2018

It’s difficult to recall the debut of a weed management technology that generated more divisiveness than the 2017 introduction of dicamba-resistant soybean varieties and the accompanying use of dicamba.  Damage to off-target vegetation from myriad sources of exposure resulted in not only monetary losses, but also untold costs to professional and personal relationships.  Trust that took years to build was damaged or lost in the span of one growing season.  This includes the public trust in pesticide use.…

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Adjacent and Neighboring: How Far is That?

  • February 19, 2018

An article posted to the Bulletin last November outlined several changes made by the United States Environmental Protection Agency to the labels of XtendiMax, Engenia, and FeXapan.  The intent of these label amendments is to reduce sensitive plant species exposure to dicamba primarily through physical movement (i.e., drift during the application or particle movement during temperature inversions) and via dicamba residues dislodged from application equipment.  Those in Illinois who have completed the required dicamba training being conducted by registrant personnel likely heard repeatedly that preventing off-target movement during the application is solely and completely the responsibility of the applicator. …

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Test Your Integrated Weed Management Knowledge!

  • February 6, 2018

Test your knowledge of integrated weed management (IWM) with this short quiz (https://www.surveymonkey.com/r/SD9RT6R). The quiz is anonymous, and the answers will be revealed at the end.
Effective long-term weed management requires integrating multiple effective techniques, as opposed to relying solely on one or two tactics. This is particularly true as troublesome herbicide-resistant weeds continue to develop and spread throughout the US. Diversifying weed management tactics, preventing the introduction of new weeds, and varying herbicide modes of action reduces the spread and establishment of resistant weeds.…

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