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Regional Reports

April 20, 2001
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.

East-Central Illinois

Extensive corn planting has continued throughout the last week. A few fields have emerged, but with the cooldown in temperatures, their growth has slowed down.

There are scattered reports of limited soybean planting.

We've had some requests for soil temperature information. The best information we've found is available through the state climatologist's website: This site reports every Monday's soil temperature at several sites in Illinois and across the Midwest. The reporting sites in Illinois are Sullivan (Moultrie County), Lincoln (Logan County), Dekalb (Dekalb County), and Chicago (Will County).

Northern Illinois

Once again, field activity has generally been limited because of several repeated, scattered showers across the area. Activity that has occurred includes alfalfa and oat seeding, some anhydrous ammonia application, and dry fertilizer application. Some pre-emergence herbicide applications have been observed, but very windy conditions have slowed this task. Snow flurries were observed on the evening of April 16, with limited accumulation. Very little corn has been planted in northern Illinois.

Extension educators are monitoring black cutworm moth traps. Moths have been caught in traps near Freeport, Rockford, and Dixon. However, an "intense" moth flight has not been recorded.

Southern Illinois

Temperatures have changed from summerlike a few days ago to cold mornings. Mt. Vernon recorded a sustained 26°F on April 18. Scattered frost.

Most areas now have some corn planted. Monroe County has some emerged corn. Gallatin County and parts of White and Saline counties have made significant planting progress. Tillage is being done across the region.

Alfalfa weevil damage is increasing with field treatment occurring, and there have been reports of significant catches in black cutworm moth traps.

Yellow rocket is now in full bloom, and cressleaf groundsel should be close behind.

The most advanced wheat is Feekes GS8. Only minimal disease observed at this time.

West-Central Illinois

Heavy rain fell in some areas, halting all fieldwork. Planting continued where rain did not occur, and some farmers have completed corn planting.

Earliest planted fields have emerged, with some reported to be in V2 stage. Population is good, but plants are discolored as a result of the recent cold temperatures.

Leaf damage may occur as a result of the freezing temperatures, but there will probably be little permanent injury because the growing point does not emerge above the soil surface until approximately V5 to V6.

There have been no reports of pest problems in corn.

Leaf feeding in alfalfa from alfalfa weevil is becoming evident.

Wheat fields look good, with very little evidence of disease at this time.

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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