Farmers are being encouraged to continue to scout for Western Bean Cutworm in corn and also in dry beans.
OMAFRA's Tracey Baute says Ontario growers experienced WBC damage in dry beans last year for the first time.
Baute reports trap counts were still quite high last week, indicating peak flight hasn't plateaued yet.
And once corn passes through the pre to early tassel stages, moths will move to dry bean fields nearby.
Scouting for WBC in dry beans can be tricky because the larvae are active at night and hide in the soil during the day.
Baute says growers are better off spending their time looking for the first signs of feeding holes in the bean pods.
Entry holes in those pods means an insecticide application is necessary.
The OMAFRA specialist says dry bean fields planted on sandy soils and in areas of known hot spots are at higher risk.
Those known hot spots are in the Thamesville to Strathroy area and around Tillsonburg and Simcoe.
Fields bordering corn fields that have reached WBC threshold levels are also at risk.
