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No. 24/November 03, 2000

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Video Segments on CDs
The Illinois IPM On-Line project has developed video segments that have been viewable from our Web site. We also have successfully transferred these videos to CD format, and we have a reasonable, but limited, supply of them for complimentary use. We developed the Companion CD so that rural users can play the video clips on their desktops.

The Crop Protection Technology Conference Program Is Set
The program for the 2001 Illinois Crop Protection Technology Conference is set and ready for distribution. Many of you will receive notification soon. The conference will be held at the Illini Union on the University of Illinois campus on January 9 and 10, 2001. A registration form is included in this issue of the Bulletin.

This article discusses the changes in format at this year's conference and the various symposia and workshops that will be available.

Pesticide Applicator Training Schedules Released
University of Illinois Extension and the Illinois Department of Agriculture (IDOA) released the commercial and private pesticide applicator training (PAT) schedules during the first week of November. All commercial, commercial-not-for-hire, and public operators and applicators should receive a renewal (one-year license) or retest notification letter and training clinic schedule from IDOA. In addition, all private applicators up for retest (three-year license) should receive a retest letter from IDOA. In each case, exams are valid for 3 years.

This article includes a schedule for the 2000-2001 commercial PAT clinics.

Overwintering Population of European Corn Borer Remains Very Low in Illinois
The fall survey of European corn borer has been completed, and for the second year in a row, densities of overwintering larvae are very low. Why have densities of European corn borers been so low in recent years? Much speculation persists regarding this question. This article examines some possible answers.

Seed Treatments and Consistent Corn Rootworm Control: Not a Proven Strategy
Many entomologists, including us, believe advancements in seed treatment technology offer real promise for control of many soil insect pests. But despite the potential benefits that an insecticidal seed treatment offers, please consider that these pluses lose their luster rapidly if corn rootworm larvae are not adequately controlled. We view the use of seed treatments for corn rootworm control with considerable skepticism at this point. Root-rating data clearly indicate that seed treatments do not offer "top-flight" corn root protection against corn rootworm larvae. Potential buyers should be fully aware that depending on these products to provide consistent corn rootworm control could be a costly mistake.

What's New with the Soybean Aphid?
Despite the onset of autumn, considerable activity regarding the soybean aphid, Aphis glycines, has continued since we wrote our last article about it in the Bulletin. We have found the aphid in every county in Illinois that we have surveyed; the aphid spread throughout our state in 2000. This article addresses such questions as the following:
  • So, what should we expect in 2001?
  • What effect will large numbers of soybean aphids in 2001 have on soybean yields?
  • How many soybean aphids are "too many," and what insecticides will control the aphids if applications seem justified?
  • So, where do we go from here?
The article also includes results from the insecticide efficacy study in Illinois in 2000.

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 a report from west-central Illinois.

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

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