02077nas a2200217   4500008004100000020001400041245012500055210006900180260001000249300001200259490000700271520131100278653002801589100001701617700002101634700001701655700001801672700001701690700001701707856013501724       2007                        eng d  a0098-033100aAcetophenone as an anti-attractant for the western pine beetle, Dendroctonus brevicomis LeConte (Coleoptera: Scolytidae)0 aAcetophenone as an antiattractant for the western pine beetle De  cApril  a817-8230 v333 aHost location and colonization by bark beetles is dependent upon the relative and absolute amounts of attractant and antiattractant compounds available. Many investigations have lead to use of antiattractants for the management of these pests and have been especially focused on verbenone. However, recent studies have identified new antiattractants for several species of bark beetles. We report results of recent investigations of the response of western pine beetle, Dendroctonus brevicomis LeConte, to two recently identified antiattractants, acetophenone, and fenchyl alcohol, with verbenone as a standard of comparison, in northern California. Release of both acetophenone and verbenone resulted in significantly lower trap catches of D. brevicomis in aggregation pheromone-baited traps, while fenchyl alcohol was inactive. Acetophenone was the only antiattractant that did not reduce numbers of the most abundant predator of D. brevicomis, Temnochila chlorodia (Mannerheim), responding to the attractant pheromone of its prey. Aggregation pheromone-baited traps with acetophenone also had the highest predator/prey ratio. Our results suggest that acetophenone may be part of the intra- and interspecific interactions among sympatric species of bark beetles and may have application in their control.10aDendroctonus brevicomis1 aErbilgin, N.1 aGillette, N., E.1 aMori, S., R.1 aStein, J., D.1 aOwen, D., R.1 aWood, D., L.  uhttps://weevil.myspecies.info/acetophenone-anti-attractant-western-pine-beetle-dendroctonus-brevicomis-leconte-coleoptera-scolytid