Studies on the Life History of Nysius plebejus Distant (Hemiptera: Lygaeidae) an Insect Pest of Chrysanthemum

국화 해충의 1종인 애긴노린재의 생활사에 관한 연구

  • 김정부 (경남농촌진흥원) ;
  • 강달순 (경남농촌진흥원) ;
  • 김태성 (경남농촌진흥원) ;
  • 신원교 (경남농촌진흥원) ;
  • 이유식 (경남농촌진흥원)
  • Published : 1994.06.01

Abstract

Life histoy of Nysius plebejrrs, the most injurious pest in chysanthemun cultivation in Korea, was studies both in field and inseday in Chinju during 1991 and 1992 seasons, and resulis are summarized as below 7hls insect has 3 generation per year, adult peaks on the mid April, mid June and late August, and the highest number of adults were attracted to the light tmp from the late August through mid September. Overwntered generation and needed 6-7weeks from egg rnatulity m spring, and 5-6 weeks, for both the first and second generation m summer, Incubation egg periods were 142, 9.3 and 7.2 days, nymphal penods were 45.2, 32.1 and 31.2 days, and total growth periods, were 59.4. 41 4 and 38.4 days, respect~vely for the overwintered, flst and second generation. Ovipositional penods were 25.6, 23.4 and 21.2 days. and number of eggs Iald by each female were 41.5. 37.2 and 35.4 days, respedively of each generation Longevities of female were 326, 27.5 and 25.1 days. and of male were 15 2, 12.3 and 12.1 days. respectively of each generation. Sex ratlo was about 1:1 in all generation, and eggs were laid in mass on the surface of leaves or stems of the host plants. This insed over-wmters as adult (90%) or 5th instar nymph (10%), however, over-wintering adults seem to be sexually premature, and mating take place actively in the following spring.

Keywords

Stink bug (Nysius plebejus Distant);life history