Stalk Borer Scouting

Stalk Borer Scouting

Nebraska map showing accumulated GDDs
Figure 1. Accumulated degree days from January 1 to June 6, 2014, using a 41°F base. (Source: Al Dutcher and the High Plains Regional Climate Center)

If scouting indicates threshold levels are exceeded for common stalk borer in corn, now is the best treatment window for the southern half of Nebraska. See previous Crop Watch article for threshold level and scouting information.

 

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A field of corn.