News From Great Lakes Hybrids

IL: Bulletin updates 31-May

May 31, 2018, 10:44 AM by Clint Hawks

Western Corn Rootworm: Adult Sampling and Economic Thresholds

http://bulletin.ipm.illinois.edu/?p=4180

Authors: Nick Seiter, Joe Spencer, and Kelly Estes

Based on degree day accumulations, western corn rootworm egg hatch should be underway in much of Illinois (roughly south of Peoria as of May 29; you can view your specific location using the degree day calculator here: https://www.isws.illinois.edu/warm/pestdata/sqlchoose1.asp). We are probably just over a month away from seeing [...]

Corn Growth Stage and Postemergence Herbicides

http://bulletin.ipm.illinois.edu/?p=4173

The labels of most postemergence corn herbicides allow applications at various crop growth stages, but almost all product labels indicate a maximum growth stage beyond which broadcast applications should not be made, and a few even a state minimum growth stage before which applications should not be made.  These growth stages are usually indicated as [...]

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