Sex Pheromone and Seasonal Occurrence of the peach leafminer, Lyonetia clerkella Linne

복숭아굴나방의 성페로몬과 성충 발생소장

  • Yang Chang-Yeol (Horticultural Environment Division of National Horticultural Research Institute, RDA) ;
  • Jeon Heung-Yong (Horticultural Environment Division of National Horticultural Research Institute, RDA) ;
  • Kim Dae-Young (Horticultural Environment Division of National Horticultural Research Institute, RDA) ;
  • Kim Hyeong-Hwan (Horticultural Environment Division of National Horticultural Research Institute, RDA)
  • Published : 2006.04.01

Abstract

The female sex pheromone of the peach leafminer, Lyonetia clerkella Linne (Lepidoptera: Lyonetiidae), was analyzed by coupled gas chromatographic-electroantennographic detector (GC-EAD). GC-EAD analyses of pheromone gland extract revealed a single compound that elicited responses from male antennae. Retention time on DB-1 column of EAD-active compound was identical to that of synthetic (145)-14-Methyl-1-octadecene (14Sme-1-18Hy). In field tests, sticky traps baited with synthetic 14Sme-1-18Hy alone were highly attractive to male. Traps with 0.1 mg dose showed the lowest catches, but there were no significant difference in the numbers of moth caught in traps baited with doses of 0.5 and 1.0 mg. The results of the field assays for longevity of pheromone traps showed that effectiveness of lures maintained for at least 8 weeks under field condition. The attractiveness of 14Sme-1-18Hy was not affected by the addition of butylated hydroxytoluene (BHT) in lures as an antioxidant. Traps baited with 0.5 mg 14Sme-1-18Hy were successfully used to monitor L. clerkella male flights. Analysis of seasonal trap catches over two years showed that moth flight activity in peach orchards occurred over a period of seven months with six generations in Suwon.

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