Wednesday, August 24, 2011
Scouting fields for weeds throughout the growing season is extremely important to maintaining herbicide effectiveness and planning for future weed control decisions. Scout fields now and at harvest to determine the effectiveness of this season's weed control practices. If weeds are present now, determine why they are present. If weeds are present due to herbicide resistance, then weed control and cropping practices must be different next season and beyond.
Friday, August 5, 2011
Dean Malvick, Extension Plant Pathologist
By Dean Malvick, Extension Pathologist
Goss's leaf blight and wilt of corn is a damaging disease that is new to Minnesota and has caused problems in fields over the past two years. The weather conditions this summer may favor development of this disease again. It was reported from two fields in southern MN in the past week, and it may be starting to develop in many fields. This is a disease to watch for across Minnesota. If you see infected plants, please send infected leaf samples for a new research study as described below.