Harvest season is under way, although with some recent rains farmers are slowed down. Dr. Brent Tharp is a Technical Product Manager for Wyffels Hybrids. He says right now farmers should get out and check the stalk integrity.

Tharp says farmers should target the fields they put fungicide on first because they will have decreased stalk integrity.

He says that in Wisconsin he is seeing greater numbers of southern rust and tar spot. 

Overall Tharp says that the yield should remain good overall, but there may be up to a 20-bushel loss due to the diseases.