Source: NCSU COOPERATIVE EXTENSION, 5/31/22

Codling moth degree-day accumulations range from about 550 in Henderson County to 755 in Cleveland County, which equates to completion of about 30% and 60% first generation egg hatch. First generation codling moth can continue to be a threat through about 900 DD after biofix, so the next two weeks is an important time for management in Henderson County and at similar or higher elevations. In lower elevation orchards such as Cleveland County, first generation egg hatch will be nearly complete in the next week. In the absence of pheromone trapping, one should assume a threat exists.

Tufted apple bud moth DD accumulations range from 740 in Henderson County to 967 in Cleveland County. Excellent control can be achieved with a single insecticide application made any time between 800 and 1200 DD. Hence, we are essentially in that window of opportunity now. Insecticides recommended for codling moth are also effective against TABM, with Altacor, Exirel, Verdepryn, Delegate and Intrepid most effective.

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