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Issue No. 16/July 22, 2011

Root Digs Confirm Corn Rootworm Larval Injury Greater than Recent Seasons
The status of the western corn rootworm population appears to be changing. Root digs and surveys help inform U of I researchers' assessments and predictions.

Twospotted Spider Mites Seen in Champaign County Soybeans
Continuing hot and dry conditions make it advisable to scout soybean fields carefully for mites, whose densities can increase very rapidly.

High Temperatures and Crops
How long can crops hold out without rain before starting to lose yield?

Should I Do Something to Get Rid of Wheat Stubble?
Options are outlined for managing fields where wheat residue has been left in place after harvest.