Seasonal flight activity of peachtree borer,Synanthedon exitiosa(Say), males was monitored from 1975–77 in the Georgia peach belt (Peach, Houston, and Crawford Co.) by recording captures in sticky traps baited with a synthetic sex pheromone. Male moth flight began in late Apr., peaked in late Aug. or early Sept. and ended the last week of Oct. Emergence trapping patterns were essentially the same for different environmental locations sampled, regardless of the pheromone concentration used, except that seasonal flight was shorter in the piedmont area. Pheromone trap monitoring appears to be adequate for detecting infestations and characterizing seasonal flight activity.