Diseases

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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Seedling Diseases in Soybeans – Time to Scout!

  • June 1, 2018

  • Nathan Kleczewski

Now is the time that seedling diseases of soybeans will start to be apparent.  Indeed, we have started to see more images of soybeans that may have symptoms of seedling disease.  However, it is important to understand that seedling diseases are complex, and a simple picture often is not sufficient to adequately diagnose the issue.  I wrote a more extensive of seedling diseases of soybean on the Illinois Field Crop Disease Blog, which can be accessed here…

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New Crop Protection Network Publication on Proper Fungicide Use for Fusarium Head Blight Now Available

  • May 23, 2018

  • Nathan Kleczewski

The Crop Protection Network is a free, online resource for producers and those in the agronomic community interested in diseases of field crops and their management.  Recently, CPN started adding resources to the site to include diseases of small grains such as wheat.  As part of this effort, we published a publication on how to optimize fungicide applications for Fusarium Head Blight management.  The publication can be accessed for free at the CPN library …

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Diagnosing disease related issues in the field

  • May 18, 2018

  • Nathan Kleczewski

Well, it is that time of year where we start to see issues developing in the field.  Questions such as, “What happened?”  and  “Why me?” will become more common.  The key to managing diseases is proper diagnosis, and this starts in the field.  In my recent post on the Field Crop Disease Blog, I provide several tips for diagnosing issues in the field, and distinguishing disease related problems from abiotic issues.  Check out the post,…

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Tips for optimal use of FHB Risk Tool

  • May 10, 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. 
One of the hallmarks of the United States Wheat and Barley Scab Initiative was the development of the Fusarium Head Blight Prediction tool (or FHB Risk Tool).  This tool represents over 15 years of research conducted by plant pathologists around the country.  Several versions of the tool have been made available,…

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Optimal Use of The Fusarium Head Blight Prediction Tool

  • May 9, 2018

  • Nathan Kleczewski

With the recent rain blast and rain forecast in the next week, coupled with the wheat crop starting to move into flowering within the next 7-14 days, it is important to start thinking about Fusarium head blight risk.  I recently wrote an expanded article on the use of the FHB prediction tool that can be found by clicking here.
Some early flowering varieties will likely flower by the weekend.  Most varieties are near flag leaf and will require another 7 –…

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