Abstract
Polyethylene dispensers containing the sex pheromone, (E,Z)-3,13-octadeca-dien-I-ol acetate «E,Z)-ODDA), of lesser peachtree borer, Synanthedon pictipes (Grote & Robinson), were placed in peach orchards in Virginia and Pennsylvania. Dispenser containing 40 mg (E,Z)-ODDA were placed in the Virginia orchard (SOO/ha)at the outset of each lesser peachtree borer generation; those used in Pennsylvania contained 70 mg (E,Z)-ODDA and were placed only once at the beginning of each season. Three generations of lesser peachtree borer were subjected to mating disruption at each site. Male attraction to traps was totally disrupted in blocks treated with pheromone. Relative to blocks treated with insecticide, counts of pupal exuviae on peach trees were reduced by 19-97% in treated blocks. Thus, the level of control achieved with the pheromone was superior to that obtained with insecticides that are currently recommended for lesser peachtree borer control.
Published Version
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