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Regional Reports

July 28, 2000

Extension Center educators, Unit edu-cators, 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

Bean leaf beetles are making their second appearance in soybeans, with some very minor defoliation occurring.

Yellow sticky traps are now obvious in a number of bean fields in northern Illinois.

Stunted corn due to early nematode activity is obvious. Now is not the time to take corn nematode samples.

Last applications of Roundup to some soybeans were applied this past week.

Weather has been ideal for crop growth and grain development this past week.

Leafhopper activity has accelerated during this past week of warm, dry weather.

West-Central Illinois

Adequate soil moisture and moderate temperatures are preventing stress to corn and soybeans. As a result, yield prospects continue to look excellent. Some cornfields are well into dent stage, which means there will likely be some harvest in late August.

Some minor corn-insect problems have been reported. Aphids and ECB can be found in some late-planted and replanted fields. Fall armyworm caused extensive damage in a field that warranted treatment.

Minor corn-disease problems include rust and gray leaf spot.

Soybean problems observed include bean leaf beetle, Septoria brown spot, and bacterial pustule. SDS and SCN damage have still not been reported.

Late-season herbicide applications are probably no longer necessary. Late weed flushes usually cause very little yield reductions.

Alfalfa hay harvest schedule should be planned so the last harvest will be no later than September 10.

Plan to attend University of Illinois Field Day, August 24 on campus.



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

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