Worms Continue to be a Threat on the Eastern Shore

Heavy worm pressure is still being seen across the Eastern Shore. One field of sweet corn was assayed for baythroid resistant corn ear worms after showing 90% damage. This was after one spraying of Coragen followed by six additional treatments of baythroid. The results of the bioassay showed none of the worms were baythroid resistant. Only severe worm pressure would seem to be the cause. Corn ear worm and beet armyworm flights remain high especially in the Birdsnest/Machipongo area. Beet armyworms can also be found frequenting pigweed and lambsquarter around the edges of fields. Young corn on the station has been heavily damaged by fall armyworms and a few adults have appeared in the trap on station possibly presaging another flight of these destructive pests. Additional information: es-insect-trap-counts-7-30-10-8-18-10-xls

Leave a Reply