Field trials of potential attractants and inhibitors for pine shoot beetles in the Yunnan province, China

摘要

Funnel traps and trap log bundles were used to test potential attractants and inhibitors for a new species of pine shoot beetle in the genus Tomicus (Coleoptera: Scolytidae) in the Yunnan province, China. The trap log bundles were attractive to beetles, and untreated bundles were heavily attacked. Verbenone, either alone or in combination with non-host volatiles (3 green leaf C_6 alcohols and I bark C_8 alcohol), significantly reduced attacks on the bundles. The non-host volatiles alone did not inhibit attack. Neither of the two monoterpene blends tested in tunnel traps caught many beetles, possibly because the traps were run during the period of beetle movement to the trunks for breeding.