cropCENTRAL | Field Crop Production Resources

Waterhemp Resistance to Group 15 Herbicides

  • March 15, 2019

  • Aaron Hager

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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Early-Season Soybean Management for 2019

  • March 11, 2019

  • Emerson Nafziger

Average Illinois soybean yield first exceeded 50 bushels per acre in 2004, when it was 50.5 bushels. It was 51.5 bushels in 2010, and 50 bushels in 2013. Over the five years beginning in 2014, it was 56, 56, 59, 58, and, in 2018, an astonishing 65 bushels per acre. Yield in each of the past five years was above trendline, which is a first—the longest stretch of above-trendline yields in the previous 30 years was for three years.…

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

  • March 1, 2019

  • Aaron Hager

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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Feedback sought on Pest Degree Day Calculator Upgrade

  • February 20, 2019

  • Kelly Estes


The Illinois Degree Day calculator has been available to Illinois producers since 2004. Hosted by the Illinois Climate Network (ICN), this pest management tool was developed to help aid producers in monitoring insect development throughout the growing season and aid in pest management decisions.
The calculator uses weather data from 19 network stations across Illinois to provide degree day accumulations and forecasts for 30 agricultural and invasive pests based on long-term averages. While this has been a great resource for many years,…

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Register now for Tar spot Webinar, March 1

  • February 11, 2019

  • Nathan Kleczewski


3/1/19 at 9:00 am CST
 
 
Join Dr. Nathan Kleczewski from the University of Illinois Extension  for an update on Tar spot in corn.  This disease was first observed in the United States in 2015 in Northern Illinois and Indiana.  In 2018, the disease significantly affected corn production in the Midwest and Florida.  What is tar spot of corn?  How does it work?  What is our current understanding of this disease and its management? …

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What effect will cold temperatures have on pests and pathogens?

  • February 10, 2019

  • Nathan Kleczewski

Nathan Kleczewski Research assistant Professor and Extension Field Crop Pathologist
Nick Seiter- Research Assistant Professor and Extension Field Crop Entomologist
 
Many in the Illinois agricultural community are wondering what effects the recent extreme cold might have on pests and pathogens. While it would be nice if the cold temperatures we are experiencing could help to reduce our potential for pest damage, past experience tells us that the most serious pests we deal with are unlikely to be impacted much by these conditions.…

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New Tar Spot Publication Available

  • February 8, 2019

  • Nathan Kleczewski

A new publication on Tar spot of corn is available through the Crop Protection Network.  In this publication we have summarized our current knowledge of the disease, it’s impacts, as well as presented management suggestions.  You can access the link to the library by clicking here.
In addition, I will be presenting a webinar on Tar spot at the end of February.  Pay attention to the Bulletin and my Field Crop Disease blog for additional details in the near future.…

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Soybean Quality Issues in 2019

  • February 8, 2019

  • Nathan Kleczewski

I have had several conversations with members of the agricultural community regarding seed quality resulting from issues derived from delayed harvest and persistent wet conditions encountered in many parts of Illinois in 2018.  For more information on what seed producers and soybean farmers should keep in mind going into this season, see my new article published on the Illinois Field Crop Disease blog, found by clicking here.…

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Field Performance of Seed Treatments and Soil Insecticides for Corn Rootworm Control

  • January 29, 2019

  • Nick Seiter

Authors: Nick Seiter and Joe Spencer
Producers across east-central Illinois have enjoyed low western corn rootworm pressure for several years, due to a combination of saturating rains during rootworm egg hatch and widespread use of Bt corn hybrids. Following a low point in the rootworm population in 2015, statewide monitoring of corn and soybean fields has documented a slow western corn rootworm population rebound in some areas.  Recent low corn pest abundance (combined with lower commodity prices) provides an opportunity to become reacquainted with rootworm monitoring and non-Bt options for their management.…

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