University of Illinois

No. 7/May 9, 1997

Cereal Leaf Beetles Observed in Wheat

Randy McElroy, regional agronomist with DeKalb Genetics Corporation, found cereal leaf beetle adults and a few small larvae in a wheat field in Jasper County on April 28. Although he detected no serious feeding injury, their presence is worth noting. Cereal leaf beetles were discussed in more detail in issue no. 5 (April 25, 1997) of this Bulletin. Remember that an insecticide treatment is not necessary unless the combination of eggs and larvae averages three or more per stem. Also remember that the most serious impact on yield occurs when the insects feed on the flag leaves.

Kevin Steffey, Extension Entomology, (217)333-6652