Issue No. 4/April 18, 2008
2007 Version of on Target, Our Annual Summary of Field Crop Insect Management Trials, Is Online
Multiple resources are available online from University of Illinois and other midwestern land-grant universities to support sound insect management decisions.
More Information About Armyworm and Black Cutworm Adults
Given the later corn planting dates we anticipate in 2008 compared with the recent past, black cutworms could be a more widespread issue this year than in the past few years.
Alfalfa Weevil Development
Use your best judgment in making alfalfa weevil control decisions, and respect the potential for ecological backlash if lots of fields are sprayed when numbers of weevils are relatively low.
Leverage 2.7 Insecticide Has Been Registered for Use on Soybeans
Aphids, bean leaf beetle, grasshoppers, green cloverworm, Japanese beetle adult, soybean podworm, stink bugs, and whiteflies are among the insects listed on the label of Leverage 2.7 insecticide, newly registered for use on soybeans.
Multistate Ratings for Burndown Herbicide Efficacy
It is best to control existing weed vegetation before planting corn or soybean. Efficacy ratings from multiple north-central states are presented for burndown herbicides.
Reports are provided this issue for northern, southern, and west-central Illinois.