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Regional Reports

August 25, 2000
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

There have been many reports of aphids in soybeans across northern Illinois, as reported in last week's Bulletin. Some individuals have treated for the problem, while others have taken a wait-and-see approach.

Some late-season weed flushes have been reported in soybeans.

Weather the last few days has been very hot and humid, but there is a forecast of rain for midweek.

Leafhopper numbers continue below threshold in the alfalfa research plot located in Stephenson County as of last Friday, August 11.

SDS of soybeans is being reported on a more frequent basis this past week.

Several soybean cyst nematode clinics are scheduled across northern Illinois during the next few weeks. To find out if a clinic is scheduled in your county, contact your county Extension office.

The last hay harvest during the growing season for northern Illinois is the last week of August or no later than September 1.

Southern Illinois

Beans: Sudden death syndrome has been found in Randolph, Monroe, Franklin, and Jefferson counties.

Corn: Corn is progressing well. The second flight of southwestern corn borer is winding down.

West-Central Illinois

Wind and hail damage occurred in some areas around Springfield. Some crop damage to corn and soybeans is evident.

Corn is starting to mature rapidly. Many fields have reached physiological maturity, and grain harvest will begin soon. Some fields have already been harvested for silage. Farmers and elevators are making plans to address the storage problems this large crop will present.

SDS and bean leaf beetle are the major problems observed in soybeans. SDS seems to be most noticeable in early-planted fields on maturity group III varieties. Yield reduction from this disease is difficult to estimate at this time. Bean leaf beetle populations are approaching threshold levels in some fields, and scouting should determine if treatment is necessary.

Forage seeding and pasture renovation should be done in central Illinois by September 5.

The Illinois Forage Expo will be September 7 on the Cliff Schuette farm, north of Breese in Clinton County.



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

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