Common Stalk Borer Predictor 6-19-15

Stalk borer predictor map
Figure 1. Accumulated degree days from Jan. 1 to June 18, 2015.

Common Stalk Borer Predictor 6-19-15

June 19, 2015

Fields with economic populations of common stalk borer in corn should be treated soon in southern Nebraska.  In other parts of the state, begin scouting grassy field borders and corn at 1,300-1,400 degree days. Plan to make insecticide treatment decisions in corn when 1,400-1,700 degree days have occurred.

For more information on scouting and treatment, see Managing Stalk Borers in Corn.

Bob Wright
Extension Entomologist

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A field of corn.