cropCENTRAL | Field Crop Production Resources

Early season diseases in soybeans

  • April 11, 2019

  • Nathan Kleczewski

Now that the soils are warming, some producers are discussing planting soybeans in the ground.  When considering early planting of soybeans, there are two diseases that should be considered: 1) Sudden death syndrome (SDS)  and 2) Pythium root rot (PRR)
Both SDS and PRR are favored by cool, wet weather.  In the case of SDS, early season infections can reduce stands, and also result in colonization of root systems.  The SDS pathogen remains in the lower portion of the stem and roots until the the plant reaches the reproductive stages. …

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Remember to check your hybrids for tar spot ratings, scout your fields

  • April 10, 2019

  • Nathan Kleczewski

It is that time of year again.  Soon corn will be in the ground, and the 2019 field season will be taking off.  It is no surprise that I spent the majority of my time on the speaker circuit discussing tar spot in corn.  We have learned a fair amount since then, but there are many more things that need to be researched and learned before we have excellent tar spot IPM management programs.  However, there are a few points you should keep in mind this season that can help you determine your risk for tar spot and management practices that can help your bottom line.…

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Cooperators sought for Insect Trapping and Field Surveys

  • April 1, 2019

  • Kelly Estes

We are starting to look for cooperators that are willing to place and monitor traps for black cutworm and true armyworm this spring and European corn borer, corn earworm, fall armyworm, and western bean cutworm this summer. We provide traps and lures. We ask cooperators to place and check traps several times a week, reporting trap catches to our site.
We will also be looking for cooperators to participate in our summer field surveys as well.…

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Managing Nitrogen for Corn in 2019

  • March 26, 2019

  • Emerson Nafziger

The fall of 2018 and so far in 2019, there have been limited opportunities to apply nitrogen fertilizer. Average rainfall through the first 25 days of March ranged from a little less than normal in the northern half of Illinois to an inch or more above normal in south-central Illinois. But temperatures have averaged 3 to 4 degrees below normal, which slowed drying. There were several days in the first week of March when it was frozen on the surface and a considerable amount of P and K went on.…

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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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