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Regional Reports

August 2, 2002
Extension center educators, unit educators, and unit assistants in northern, west-central, east-central, and southern Illinois prepare regional reports to provide more localized insight into pest situations and crop conditions in Illinois. The reports will keep you up to date on situations in field and forage crops as they develop throughout the season. The regions have been defined broadly to include the agricultural statistics districts as designated by the Illinois Agricultural Statistics Service, with slight modifications:

· North (Northwest and Northeast districts, plus Stark and Marshall counties)

· West central (West and West Southwest districts, and Peoria, Woodford, Tazewell, Mason, Menard, and Logan counties from the Central district)

· East central (East and East Southeast districts [except Marion, Clay, Richland, and Lawrence counties], McLean, DeWitt, and Macon counties from the Central district)

· South (Southwest and Southeast districts, and Marion, Clay, Richland, and Lawrence counties from the East Southeast district)

We hope these reports will provide additional benefits for staying current as the season progresses.

Northern Illinois

The region received various amounts of rainfall last weekend and Monday, with reported amounts ranging from 0.5 to 1.6 inches. The majority of cornfields have completed pollination.

Bean leaf beetles are still present in soybeans, but to date, leaf feeding is below economic levels. Spider mite damage readily appears in soybean field margins, but few fields have been treated. Potash deficiency and stunting have been reported in small areas in several soybean fields.

Leafhopper populations continue to remain high in alfalfa. Oat harvest has been completed.

Just a reminder: The annual Agron-omy Field Tour at the U of I Northern Illinois Agronomy Research Center, Shabbona, will be held next Wednesday, August 7. Tours will depart from the farmstead about every 15 minutes, from 4:00 p.m. to 5:00 p.m., and will last about 1 1/2 hours. A meal will be available on site at the conclusion of the tour. Also, the 2002 Illinois Forage Expo will be held, from 9:00 a.m. to 3:30 p.m., August 6 at the Kendall Guither Farm; Walnut, Illinois; Bureau County. The site can be reached by going 3 miles east of Walnut and then north 1 mile. The event will include field demonstrations of forage- harvesting equipment, commercial industry exhibits, and educational presentations.

West-Central Illinois

Various amounts of rain fell in most of the region during the last week. In some areas, downed corn has been reported as a result of high winds and heavy rain. In general, however, crop conditions have significantly improved.

Aphids and rootworm beetles are the major insects in corn, with some fields being treated for the problems. Second-generation corn borers have also been reported.

Soybean growth improved during the past week, with many fields now reaching normal plant size. Spider mites have been observed in some fields, but very little insecticide has been applied.

Alfalfa fields that were treated for potato leafhoppers look good, and some are now being harvested.

Farmers are now spending their time mowing weeds, cleaning grain bins, and getting ready for fairs.

The Pest Management and Crop Development Bulletin
Executive Editor: Kevin Steffey, Extension Entomologist

Subscription information: Phone (217) 244-5166 or email
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