Abstract:

The female sex pheromone gland extract of Holcocerus Artemisiae was separated and indentified by gas spectrometry (GC) and electroantennograms (EAG). The result indicated that (Z)-5-dodecenyl acetate (Z5-12∶ Ac), (Z)-5-tetradecenyl acetate (Z5-14∶ Ac) and (Z)-5-dodecen-1-ol (Z5-12∶ OH) the major pheromone components. These chemicals were artificially synthesized. Results of field trials showed that the mixture of Z5-12∶ Ac and Z5-14∶ Ac had high biological activity and specificity. The addition of (E, Z)-3,5-dodecadicen-1-yl acetate (E3，Z5-12∶ Ac) to the mixture increased attractive. The traps baited with rubber septa impregnated with Z5-12∶ Ac, Z5-14∶ Ac and E3, Z5-14∶ Ac in a 10∶6∶0.5 ratio were the most effective. On an average, 7.2 male moths were caught by a trap baited with 825 μg of the sex attractant per day. The sex attractant can be used for trapping the male and for the insect survey, which would provides a new method and technique for the integrated control of H. artemisiae.

Key words: Holcocerus artemisiae, sex attractant, synthesis, biological activity