Verification and Evaluation of Male-Produced Pheromone Components from the Citrus Long-Horned Beetle, (Forster) (Insecta: Coleoptera: Cerambycidae).

The citrus long-horned beetle, (Coleoptera: Cerambycidae), is a highly polyphagous species native to eastern and southeastern Asia. Detection of these beetles is dependent on visual surveys, which are inefficient and labor-intensive. The identification and development of pheromone-based lures would help improve survey efforts for should it become established within the US. We identified three antennally active male-produced chemical components (nonanal, 4-(n-heptyloxy)butan-1-ol, and 4-(n-heptyloxy)butanal), which were then tested for behavioral activity at our USDA Quarantine laboratory. When tested together in Y-tube behavioral assays, a three-component blend of the identified compounds was shown to be attractive to adult female . Pheromone production and behavior of and other closely related cerambycid species are discussed in relation to mate finding and potential monitoring.