Corn Rootworm Current Status, etc. and crop disease update/fungicides
The months of July and August typically brings new challenges for corn and soybean growers in
Minnesota. In this week’s episode, Bruce Potter, Extension Integrated Pest Management Specialist and
Andy Nesseth, part owner, Agronomist/Consultant from Extended Ag Services of Lakefield, MN provided
an update and reviewed management strategies for corn rootworm in Minnesota. Because of the
delayed spring planting season and resistant corn rootworm populations, Minnesota corn growers face
numerous field by field management situations for adequate corn rootworm control. Bruce and Andy
discussed the use of field traps and scouting as part of these management strategies along with
recommended crop and Bt hybrid rotations. The last portion of the program included Dr. Dean Malvick,
University of Minnesota Extension Plant Pathologist for corn and soybeans. Dean provided an update of
the biology and cultural control of corn tar spot, SDS (sudden death syndrome) in soybeans, white mold,
and frog eye leafspot in soybeans. Dean also reviewed the possible use of fungicides for some of these
diseases in terms of proper application timing.
We want to thank our sponsors the Minnesota Soybean Research and Promotion Council, along with the Minnesota Corn Research and Promotion Council.
To participate in CRW trapping contact Bruce: bpotter@umn.edu
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