September 13, 2011

WNY Sweet Corn Trap Network 9.13.11

European corn borer trap catches are up at a few locations this week; we may be seeing a partial third generation this year.  Corn earworm are being caught at all locations this week, and numbers are high enough to indicate a 3-4 day spray schedule at three sites. Several others have numbers indicating the need for a 4-5 day schedule, depending on temperature (see the table below).  Fall armyworm numbers are up at several locations, but the same locations are also catching CEW in high enough levels that the spray schedule should also take care of the FAW.  The western bean cutworm flight has ended.

Recommended spray intervals based on corn earworm trap catches

Recommended spray intervals based on corn earworm trap catches

9.13.11