Efficacy of multispecies pheromone lures for Carpophilus davidsoni Dobson and Carpophilus mutilatus Erichson (Coleoptera : Nitidulidae)

Orchard experiments were conducted in southern New South Wales to evaluate the efficacy of multispecies pheromone lures in trapping two economically i mportant species of Carpophilus. Captures of Carpophilus davidsoni Dobson a nd Carpophilus mutilatus Erichson in traps baited with aggregation pheromon es of both species or a three-way lure that also included the pheromone of Carpophilus hemipterus (L.) were not significantly different from captures in traps baited with conspecific pheromones. Carpophilus davidsoni and C. m utilatus were cross-attracted to traps baited with the pheromone of the oth er species, but numbers were significantly reduced compared with traps bait ed with conspecific or heterospecific pheromones. Multispecies lures will i mprove prospects for the commercial use of synthetic aggregation pheromones in Carpophilus beetle management in stone-fruit orchards.