Pest management

Weed management

Control volunteer corn for yield protection and corn rootworm management

Volunteer corn impacts and control options
Soil residual herbicide options after corn emergence

Many, but not all, soil-applied corn herbicides can be applied after corn emergence.

Applied Weed Science

The University of Minnesota's website on applied weed science research, including links to research reports, publications, and fact sheets on weeds and herbicides.

Corn diseases

The University of Minnesota Extension's website on corn diseases, including information on disease overviews, symptoms, and management options.
Field guide to corn diseases

An extensive guide to identification of common corn diseases in the United States, including color photographs of corn diseases to aid in identification. Excerpt from a publication available in the Extension Store.
Watch for potential corn ear rots and mycotoxins after dry and hot weather in parts of Minnesota

Development of corn ear and kernel rots and associated mycotoxins in grain may be favored by the dry and hot weather in some areas of Minnesota. Crop News, 2012.
Goss's wilt in Minnesota

A summary of key points about Goss's Wilt, including where it has been confirmed in Minnesota, factors that favor its development, and how to recognize it. Crop News, 2012.
Corn nematodes

A fact sheet prepared by the University of Minnesota's Plant Disease Clinic, including an appraisal of the corn nematode problem. Crop News, 2010.
Corn seedling diseases

While the stress of cool conditions and frost may only set back the corn slightly, it could also set up a situation for seedling disease in some areas. Crop News, 2010.
Fungal growth on corn in Minnesota in fall 2009

Recently there have been numerous reports of "moldy corn" across Minnesota. Fungal growth on corn can cause greater problems with grain quality if the corn is not harvested and dried properly. Crop News, 2009.

Fungicide for corn? The influence of agronomic factors

Research conducted in southern Minnesota shows that the use of foliar fungicide for corn in the absence of disease is not considered a "best management practice" from an integrated pest management standpoint. Crop News, 2009.
Hot and dry summer conditions favorable for corn ear rots and mycotoxin production

Not only do hot and dry conditions and hail affect corn yields in Minnesota, these conditions have also favor development of ear rots and mycotoxins. Crop News, 2007.
Corn foliar diseases and fungicides in Minnesota – delving into the uncertain

Why, when, and where should fungicides be applied to hybrid corn for grain production? Crop News, 2007.
Corn stalk rots

Corn stalk rot may reduce yields and set the stage for lodging and harvest challenges. Crop News, 2005.
Barren stalks in corn

Common symptoms of barren corn stalks and abnormal ear development, and possible conditions that could be responsible. Crop News, 2001.
Soybean and corn diseases

Identification and management of various soybean and corn diseases. Crop News, 2001.

Integrated Pest Management

Research findings, pest management tips, and upcoming events presented by the University of Minnesota's Southwest Research & Outreach Center.

Performance problems surface again with Bt corn rootworm traits

With injury largely completed and corn rootworm emergence peaking, now is the time to check fields for signs or symptoms of performance problems with your Bt-RW traits. Crop News, 2012.