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Regional Reports

July 12, 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

Hot and dry conditions continue to persist throughout the region. Some areas received 0.5 to 0.7 inch of rain on July 8, but the precipitation was spotty. Several reports of erratic weed control from the dry, hot conditions have been reported. These situations occurred in postemergence soybean herbicide applications. Cupping of soybean leaves, which mimics herbicide drift injury, is very common throughout the region.

Generally, most corn is several weeks from pollination. Producers are encouraged to scout fields during that time for Japanese beetles and corn rootworm beetles, which may cut corn silks, interfering with pollination.

West-Central Illinois

Hot and dry conditions continue to stress crops in the west-central region. Scattered rainfall on Tuesday offered relief for some areas, but precipitation was spotty and light. Rainfall is in the forecast for the next few days, but the chance for rain ranges only from 30% to 60%.

Early-planted corn looks good for the most part, while later-planted corn is showing signs of moderate to severe drought stress (i.e., delayed development and rolling and firing of lower leaves). Many soybeans are blooming, and most postapplications of herbicide have been made, but a significant portion of soybean acres is still in the first stages of development. Some reports have been received of reduced efficacy of recently applied glyphosate, most likely a consequence of unfavorable growing conditions. Many rowed beans have yet to canopy, and it appears that some wide-row beans may not attain full canopy closure this year.

The second cutting of alfalfa is progressing well, and many producers have been baling oat hay within the past week. Oat grain harvest should begin shortly.

Insect pests do not appear to be of any consequence, but growers and industry personnel alike are monitoring grasshopper populations in pastures and field edges and scouting closely for signs of spider mite infestations in soybeans.

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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