WNC Orchard Insect Pest Populations – June 28, 2022
Story Date: 6/29/2022

 

Source:  NCSU COOPERATIVE EXTENSIN, 6/28/22

There are several groups of insect pests that are potential threats to apples, but with a few exceptions overall insect pressure remains relatively low across the region. Depending on location, codling moth and oriental fruit moth can be a concern. Among indirect pests, aphids, leafhoppers, mites and Japanese beetles are all active at this time.

Codling moth degree day accumulations range from 1127 DD to 1437 DD in Henderson and Cleveland Counties, respectively. In Cleveland County and similar elevations, second generation egg hatch is about 10% complete and will be about 30% complete next week, so now is an important time to monitor trap captures and apply insecticides if warranted. In Henderson County, it is expected to be another 7 to 10 days before flight activity picks up. Chemical control is necessary in orchards with pheromone trap captures increasing above about 5 moths/trap/week. Insecticidal control is usually not necessary in orchards using mating disruption. Overall, codling moth populations have been low throughout the region this year.

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