Wisconsin Pest Bulletin 8-20-15

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

Issue No. 18 of the Wisconsin Pest Bulletin is now available at:

I N S I D E  T H I S  I S S U E

LOOKING AHEAD:  European corn borer treatment window closing

FORAGES & GRAINS:  Alfalfa caterpillar butterflies common across southern and central WI

CORN:  Corn rootworm beetle populations comparable to last year

SOYBEAN:  Soybean aphid densities remain below-threshold in surveyed fields

FRUITS: Spotted wing drosophila confirmed in 15 counties to date

VEGETABLES:  Tomato late blight found in St. Croix County

NURSERY & FOREST: Reports from this week’s nursery inspections

DEGREE DAYS:  Growing degree day accumulations through August 19, 2015