Illinois Corn: Tar Spot Found in Indiana – Don’t Panic

🕔Jul 16, 2019Last week colleagues in Indiana reported tar spot presence in some of their research plots located in North West IN.  They found an extremely low number of stroma (less than […]

Illinois Corn, Soybeans: Diseases Starting to Pick Up

🕔Jul 12, 2019Crops are finally starting to pick up growth throughout the state.  In parts of the south we have tasseling corn, while we will hit VT soon in some of the […]

Illinois Corn: Calculating Fungicide Net Returns

🕔Jun 27, 2019Corn producers in parts of the state are nearing the point in time where they are thinking about fungicide applications to their fields. In a recent post on my blog I discussed […]

Illinois Corn: Tar Spot – Conditions Unfavorable for Development

🕔Jun 24, 2019As many of you are aware, our tar spot coalition is working to refine a tar spot model developed by colleagues at the University of Wisconsin Madison this season.  This […]

Iowa Corn: Predicting Tar Spot Risk for 2019

🕔Jun 24, 2019In 2018, tar spot was detected in 12 counties in eastern Iowa. The disease was observed late in the growing season, at did not cause a lot of damage. In Wisconsin, Illinois, […]

Michigan Corn: Irrigation and Tar Spot – What Happened Last Year? Will It Happen Again?

🕔May 17, 2019Tar spot, a new fungal pathogen first seen in Michigan in Allegan County in 2016, spread like a wildfire across west Michigan in 2018. The disease, which is prevalent in […]

Southwest Michigan: Slow Green, Variable Weather; Watch for Weeds

🕔Apr 12, 2019Weather The late winter, early spring weather in 2019 has been quite variable. In terms of heat accumulation, which tends to spur on winter annual weeds and wheat growth, the […]

Illinois Corn: Check Hybrids for Tar Spot Ratings, Scout Your Fields

🕔Apr 11, 2019It 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 […]

Corn: Tar Spot – Things to Keep in Mind Ahead of Planting – Podcast

🕔Apr 3, 2019University of Illinois Extension Plant Pathologist Nathan Kleczewski recently conducted an interview through the Illinois Extension news service regarding pre-season management and preparation for tar spot in 2019. Some quick […]

Webinar: Tar Spot in Corn, Other Emerging Diseases, March 25

🕔Mar 21, 2019Tar spot of corn is a new disease to the United States. Caused by the fungus Phyllachora maydis, the disease has the potential to cause significant yield loss. Tar spot […]

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