UNIVERSITY PARK, Pa. — Again this year, Penn State Extension and the Department of Entomology are monitoring black cutworm populations with pheromone traps. As moths arrive, if we capture eight or more moths over the course of two nights (a “significant flight”), there is an elevated risk in that particular area of cutting damage by black cutworm caterpillars later in the spring. So far this spring, we have only detected significant flights of b…
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