Source: NCSU ENTOMOLOGY, 7/26/17

The insect situation has not changed appreciably from last week. Late second generation codling moth and brown marmorated stink bug remain the insects of primary concern. Apple maggot captures remain very low, with only one fly captured in an abandoned orchard, and none near commercial orchards.

Codling Moth: Codling moth degree-day accumulations since biofix range from about 1955 in Henderson County to 2150 in Lincoln County, which corresponds to about 65% and 85% completion of second generation egg hatch. Most growers have completed their second generation codling moth sprays, so there is probably no need for further applications unless pheromone trap captures exceed an average of 5 to 7 moths per trap per week.

Brown Marmorated Stink Bug: Based on degree-day accumulations and pheromone trap captures, first generation adult emergence continues in lower elevation orchards in the foothills and piedmont (areas with less than about 1200 feet elevation). Insecticide sprays for BMSB should continue at 10- to 14-day intervals in these locations. In Henderson County and other orchards above about 2000 ft elevation, first generation adults have not yet emerged, but are predicted to emerge this weekend. Insecticide applications for BMSB should therefore begin no later than next week in these higher elevation orchards.

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