cropCENTRAL | Field Crop Production Resources

Keep an eye out for Tar Spot on Corn

  • July 5, 2018

  • Nathan Kleczewski

Today we received reports of Tar spot appearing in corn grown in Illinois.  We are currently studying tar spot of corn in the United States, and are requesting that any CCA, producer, or ag professional that encounters this disease, even if outside of Illinois, please send samples to Diane Plewa at the University of Illinois Plant Diagnostic Clinic.
S-417 Turner Hall, 1102 S.Goodwin Ave.
Urbana, IL 61801
Phone: 217-333-0519
Email: plantclinic@illinois.edu
Please note  “Tar spot study”…

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Concerned about White mold? Check out #Sporecaster

  • June 27, 2018

  • Chelsea Harbach

The following is posted on behalf of Dr. Nathan Kleczewski, Field Crops Pathologist for Growmark. This content is from the Field Crop Disease Hub webpage Dr. Kleczewski curated. 
White mold, caused by Sclerotinia sclerotiorum, is one of the most problematic diseases impacting soybean production in the northern portion of Illinois.  Fungicides can be used to suppress this disease; however, the optimal timing for fungicide application, or the need for a fungicide application,…

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Tips on making fungicide application decisions in field crops

  • June 23, 2018

  • Nathan Kleczewski

We are at that time in the season where many people will be making final decisions regarding fungicide applications in soybeans and corn.  I wrote an article with tips and other items to consider when making fungicide decisions and on farm trials on the Illinois Field Crop Disease Blog, which can be found by clicking HERE.  …

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Tips to help you make fungicide decisions

  • June 22, 2018

  • Chelsea Harbach

The following is posted on behalf of Dr. Nathan Kleczewski, Field Crops Pathologist for Growmark. This content is from the Field Crop Disease Hub webpage Dr. Kleczewski curated. 
Every year we hear about fungicides, and their utility in agronomic production systems.  Indeed, these products can be an extremely useful tool to prevent yield-related losses resulting from fungal diseases.  However, reduced commodity prices are making it crucial for producers to minimize inputs in order to maximize profits. …

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Seedling diseases in soybean more evident throughout the state

  • June 15, 2018

  • Nathan Kleczewski

With the storm that moved through the state the past week, it is not surprising that we are seeing more seedling diseases in soybeans.  In many cases Rhizoctonia has been identified as the causative organism, alone or in combination with other soil issues such as compaction.  Rhizoctonia is one of the most common and problematic seedling issues for soybean producers in Illinois, and can cause significant yield losses due to stand reduction and reduced plant growth. …

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I used a seed treatment. Why did I get seedling disease?

  • June 15, 2018

  • Chelsea Harbach

The following is posted on behalf of Dr. Nathan Kleczewski, Field Crops Pathologist for Growmark. This content is from the Field Crop Disease Hub webpage Dr. Kleczewski curated. 
After the recent deluge that moved through parts of the state, some Illinois soybean producers have been hit hard with seedling diseases.  A common question many people are asking is, “I used a seed treatment, so why am I having problems with seedling diseases?”
Seed treatments are popular in soybean production systems. …

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Crop conditions and potential in mid-June

  • June 14, 2018

  • Emerson Nafziger

Warm temperatures continue in Illinois, with growing degree day (GDD) accumulations since May 1 running from 150 above average in northern Illinois to about 250 GDD above average in the rest of the state. With GDD accumulations of 900 to 1,000 since May 1, the corn crop planted in early May is at V10 to V14, about 30 to 60 inches tall, and needing only about 350 to 450 more GDD to tassel and silking. With daily accumulations at about 25 GDD,…

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Reminder…University of Illinois Weed Science Field Research Tour

  • June 11, 2018

  • Aaron Hager

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

  • Aaron Hager

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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