Pest activity remains low in Henderson County and similar elevations, while lower down (e.g. Cleveland County and similar elevations) attention should be given to second generation codling moth.
Codling moth degree day (DD) accumulations in Henderson County are 1195 as of June 24, and low pheromone trap captures across the county confirm model predictions that we are between generations. Emergence of second generation moths begins at about 1400 DD, which based on the forecast will occur in about a week. Hence, an insecticide application next week should be considered, especially in those orchards not monitoring with pheromone traps. While the threat of damage by the second generation is generally low where there is no damage up to this point in time, even under low trap captures a single insecticide application around 1450 DD (predicted for July 3) targeting the second generation is good insurance. The exception is those orchards using mating disruption (either yearly or every other year) and with very low pheromone trap captures (average of <1 moth/trap), where insecticides targeting codling moth are generally not needed.
In lower elevation orchards, if an insecticide targeting the second generation has not yet been made, one should be applied in the next spray. Current DD accumulations are about 1580 as of June 24, and were at 1450 on June 20.
