Pest Bulletin 12-3-15

Krista Hamilton, Entomologist, WI Dept of Agriculture, Trade and Consumer Protection

Issue No. 20 of the Wisconsin Pest Bulletin is now available at:

PLEASE NOTE: This final Wisconsin Pest Bulletin of 2015 provides a post-growing season summary of prevailing insect and plant disease conditions and related weather. Once again, our sincerest thanks to the many cooperators, farmers, county agents and consultants who contributed their time and valuable information to the survey program this year.

I N S I D E  T H I S  I S S U E

PEST HIGHLIGHTS OF 2015:  European corn borer population declines to 74-year low

FORAGES & GRAINS: Potato leafhopper counts remain low all season long

CORN:  Corn rootworm beetle survey finds higher populations in eastern Wisconsin

SOYBEAN:  Phytophthora root rot a common problem again this season

FRUITS: Spotted wing drosophila confirmed by UW in 42 counties in 2015

VEGETABLES:  Basil downy mildew, late blight and striped cucumber beetle summaries

NURSERY & FOREST: Emerald ash borer survey results in 39 new detections

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