University Information Bank

This section of the site contains an index of articles, links and information related to controlling weeds, insects and disease in agricultural crops. The Info Bank spotlights corn and soybeans at this time and will soon be expanded to include all major crops.

Crop:
Pest:
State:
Article Date:
Recent Articles Added:
  • Soybean aphid increasing & variable – scout fields now 07/25/2008
    This week soybean aphid populations have increased noticeably. That is a relative term in this case. In some areas such as Dodge and Sauk Counties, this increase is from near zero activity to field averages of 10 aphids/plant and 30-60 aphids/plant. In other areas however, West Central and East Central Wisconsin for example, higher populations are starting to be reported closer to Economic Threshold in a few fields. Read more on the variable levels and scouting advice from this article in the Wisconsin Crop Manager.

    Site Provided By: University of Wisconsin-Madison


  • Western bean cutworm alert 07/24/2008
    Western bean cutworm egg laying and hatch are confirmed. So Christina DiFonzo advises growers to start scouting now (starting the week of July 21), particularly in northwest Michigan. She reports that some fields in northwest Michigan are over threshold for egg masses and small larvae. Read more on scouting and thresholds from this full report in the Field CAT Alert.

    Site Provided By: MSU Field CAT Alert


  • Update on corn earworm 07/24/2008
    The University of Idaho CIS 366 entitled "Timing Corn Earworm Control,"states that summer moths will begin laying eggs in fresh corn silk at approximately 1300 growing degree days (GDD). Egg hatch and larvae attack will begin about 73 GDD later. According to the Oregon State University GDD model for Corn Earworm, we are currently at 1136 GDD in the Caldwell area, 1076 GDD in the Nampa area and 1297 GDD in the Parma area. We will hit 1300 GDD in the Caldwell area on 8/1, in the Nampa area we will hit 1300 GDD on 8/2, and in the Parma area we hit 1300 GDD on 7/24. Those fields with fresh silk at 1300 GDD are most vulnerable to attack from corn earworm larvae.

    Site Provided By: Treasure Valley & Pacific Northwest Pest Alert Network


  • Blueberry gall midge injury more common this year 07/24/2008
    The blueberry gall midge is a pest of blueberries across the United States and Canada. This season, we have seen higher levels of damage from this pest than in recent seasons. Read more on the damage it has caused from this Fruit CAT Alert at the link below.

    Site Provided By: MSU Fruit CAT Alert


  • Western bean cutworm: a new corn “worm” 07/24/2008
    Although the risk from European corn borer and corn earworm to sweet corn, peppers, snap beans and tomatoes is low, another "worm" pest has appeared. Read more on this new worm pest and its threat to sweet corn from this Vegetable CAT Alert.

    Site Provided By: MSU Vegetable CAT Alert