The beginning stages of frog eye leaf spot on a soybean plant

Summer weather has been the ideal host for increasing crop disease

pressure in some parts of the Midwest.

Kurt Maertens is a technical service representative for BASF covering eastern Iowa, western Illinois and southern Wisconsin.

“We are halfway through pollination in most of my area and we do have significant grey leaf spot pressure and we are getting more and more reports of tar spot and some southern rust.”

He says the heat, rain and humidity have allowed infection

to set in earlier this year.

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