WNY Sweet Corn Pheromone Trap Network Report 7.5.11

European corn borer E and Z race moth counts remain low this week.  Although trap counts are low this week, ECB and CEW larvae from eggs laid by moths during the peak flight will still be found in emerging tassels.  Continue scouting emerging tassels (threshold 15% infested plants) for larvae, and the ear zone in silk stage fields for small larvae and egg masses.  Corn earworm were caught at less than half the reporting locations this week, and numbers at a couple of sites are high enough to determine the spray schedule in silk stage fields.  See the chart below for recommended spray intervals where CEW are being caught.  No fall armyworm or western bean cutworm were caught this week at sites in the sweet corn trap network.

cewtable

7.5.11

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