Field response of Anaglyptus subfasciatus pic (Coleoptera: Cerambycidae) to benzyl acetate and structurally related esters

The attractiveness of benzyl acetate, β-phenylethyl propionate and eight structurally related chemicals against the adults of the cryptomeria twig borer, Anaglyptus subfasciatus, were examined in the field using water pan traps. Methyl phenylacetate was identified as the most reliable chemical attractant to the beetle. The mean number of the beetles captured in the traps baited with the gelled dispenser was about four times higher than that with the cotton wick ones. The advantages of gelled dispenser in releasing semiochemicals at g/day level are also discussed.