Since the Plant and Pest Advisory Newsletter, Vegetable edition is not being sent today, what follows is a shortened version of the IPM Update which normally appears in it.
European corn borer – State wide captures in traps are very low. Highest catches, still less than 1 per night occur in Gloucester and Cape May Counties. Larval infestations are declining in sweet corn as the population ages. Second generation moths begin flying at 1200 degree days (base 50) which has been reached across the state now.
Corn earworm – Blacklight counts are very low in the northern half of the state. Populations are higher in the southern half of the state. The highest counts occur in Salem, Cumberland, Atlantic and Cape May Counties. Silk spraying schedules given below:
North Jersey – 5 day schedule
Central Jersey – 4 to 5 day schedule
South Jersey – 3 to 4 day schedule
Brown marmorated stinkbug – Very low counts in north Jersey but numbers increase in southern Jersey. Only one site in the state, in Salem County, exceeds 5 stinkbugs per night. No reports of vegetable damage, as yet.
Beet armyworm – Counts remain low with the highest counts of 5 per night occurring in Atlantic and Cape May Counties.
Yellow striped armyworm – We normally don’t track this insect pest but at least one blacklight trap in Salem County shows large numbers of moths being caught. We may see another large larval population in the next generation of caterpillars.