Pest Tracker
Exotic Pest Reporting
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Corn tar spot
Phyllachora maydis Corn tar spot (Phyllachora maydis) is a fungal pathogen of corn. It is a native of Mexico, Central and South America and was first detected in Indiana in 2015. Suitable environmental conditions of temperature, relative humidity and/or rainfall are required for the sequence of infections that results in the blight on maize.
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News
09/26/2016 - Tar Spot on Corn Confirmed in Indiana in 2016
10/23/2015 - Phyllachora maydis (black spot of maize)
10/19/2015 - Tar Spot on Corn Confirmed in the United States
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