Field trapping of the invasive brown marmorated stink bug, Halyomorpha halys, with geometric isomers of methyl 2,4,6-decatrienoate.

摘要: The brown marmorated stink bug, Halyomorpha halys (Stal), is a polyphagous pest indigenous to northeastern Asia where it damages various trees, vegetables, and leguminous crops. bug was recently introduced into the U.S. could potentially become pest. In its native range, H. reportedly attracted aggregation pheromone of brown-winged green Plautia stali, methyl (2 E,4 E,6 Z)-decatrienoate. We also observed that traps baited with this compound are attractive halys. additionally found Z)-decatrienoate (as well as other isomeric 2,4,6-decatrienoates) exposed daylight in solutions and/or on dispensers used for field trapping can readily isomerize form complex mixtures isomers, thus causing concern about lure stability longevity. However, our studies demonstrated preventing isomerization not essential males, females, nymphs. present evidence Z,4 Z,6 (pheromone Thyanta spp. pentatomids), geometric attract ZEZ isomer, unknown nature, EEZ elicited electrophysiological responses from antennae males. data suggest presence but isomer attraction halys, isomers antagonistic may even be needed maximum attraction. Because at present, lures containing without protection suitable monitoring populations late season.