IDENTIFICATION OF THE AGGREGATION PHEROMONE OF THE BROWN-WINGED GREENBUG, PLAUTIA-STALI SCOTT (HETEROPTERA, PENTATOMIDAE)

Identification of the aggregation pheromone responsible for the aggreg ation phenomena of the brown-winged green bug, Plautia stali Scott (He teroptera: Pentatomidae) was attempted. Volatiles collected from adult males which attracted adults showed attraction activity under field c onditions. Volatiles were then collected from a total of 180,000 adult males and the activity of the fractionated samples was field tested u sing water pan traps. A mixture of hexane and 5% ether in hexane fract ions from Florisil LC showed attraction activity, and this was further purified with HPLC and GC. By GC-MS and NMR analysis (COSY), the chem ical structure of the active compound was identified as methyl (E,E,Z) -2,4,6-decatrienoate. The attraction activity of the synthesized compo und of this structure was confirmed by field tests.