Repellence of Common Tobacco Flavorants on Lasioderma serricorne (Coleoptera: Anobiidae)

Abstract

The cigarette beetle, Lasioderma serricorne (F.) (Coleoptera: Anobiidae) is a destructive pest species of tobacco. Olfactory repellents derived from permitted tobacco flavorants have the advantage of not adversely effecting tobacco flavor. Among 12 test compounds, neral exhibited the strongest repellent effect. Among six binary blends prepared, three blends (neral + ethyl cinnamate, neral + cinnamaldehyde, and neral + methyl cinnamate) evoked the strongest repellent response. The interactions between neral and any one of the cinnamic acid derivatives were additive, and the interactions between neral and the cinnamic acid derivatives were antagonistic. In a 32-d tobacco barn bioassay, neral + cinnamaldehyde (embedded in 0.5% agaropectin) showed the strongest repellent effect with a persistence of at least 30 d. The binary blend of two tobacco additives (neral and cinnamaldehyde) appears promising as a repellent for controlling cigarette beetles in tobacco barns.

Host plant recognition by two odorant‐binding proteins in Rhynchophorus ferrugineus (Coleoptera: Curculionidae)

“…Moreover, benzyl acetate has been found to play an important role in insect interspecific and intraspecific communication as a pheromone component 68 . Ethyl cinnamate is an attractant for the Indian honeybee Apis florea 69 and oriental fruit fly B. dorsalis 70 but a repellent for the cigarette beetle Lasioderma serricorne 71 and the African malaria mosquito Anopheles gambiae 72 . Butyl acetate elicits attraction in the oriental fruit fly B. dorsalis , 73 oriental fruit moth Cydia molesta 74 and several scarab beetles 75 .…”