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No. 21/August 17, 2001

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Last Issue of the Growing Season
This is the last issue of the Bulletin this month; the next issue will be published during the week of September 3. If the need arises, we will provide critical updates on the Web version of the Bulletin.

Reminder: University of Illinois 45th Annual Agronomy Day
The 45th annual Agronomy Day presented by the University of Illinois will be held at the Crop Sciences Research and Education Center (South Farm) on Thursday, August 23, 2001. We hope to see you there!

Reports of Bizarre Western Corn Rootworm Behavior Continue
Western corn rootworm densities have reached astonishing levels in many locations of central and northern Illinois. "Swarms" of western corn rootworm adults also have been reported in the gardens of homeowners who reside in metropolitan areas. The article discusses possible causes for these unusual observations.

Aphids Invade Akron
The presence of the soybean aphid in Ohio was confirmed just last month, but already these pests have made the news in Akron, Ohio, as they have descended on the city.

The aphid populations are crashing in parts of Michigan, but many fields still appear black due to the sooty mold that remains on the soybean leaves. We have received reports of some aphid population crashing in fields in Illinois, too, but populations in many fields in the northern part of the state remain high.

Sudden Death Syndrome on Soybean
Sudden death syndrome (SDS) on soybeans is beginning to appear around the state. At this time, the amount of symptoms being reported seems less than the amount of SDS appearing in fields around this time last year.

This article describes the symptoms of SDS and provides suggestions for control.

Regional Reports
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.

This week's issue includes reports from east-central, northern, southern, and west-central Illinois.

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

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