Ovipositional Charcteristics of Hemiptarsenus zilahisebessi(Hymenoptera : Eulophidae), Ectoparasitoid of Liriomyza trifolii (Diptera: Agromyzidae)

아메리카잎굴파리 외부기생봉 Hemiptarsenus zilahisebessi의 산란특성

  • 문형철 (전북농업기술원 식물환경연구과) ;
  • 최정식 (전북농업기술원 식물환경연구과) ;
  • 황창연 (전북대학교 농업과학기술연구소)
  • Published : 2002.03.01


Longevities of Hemiptarsenus zilahisebessi, ectoparasitoid of Liriomyza trifolii (Burgess) larva. were 23.0, 16.9. and 12.7 days at 20, 25, and 30$^{\circ}C$, respectively. The adults copulated and laid eggs as soon as they emerged at 20$^{\circ}C$ and 30$^{\circ}C$. The total number of eggs laid and the daily oviposition rate were 82.3/3.6, 90.3/6.0, and 95.5/7.8 at the three different constant temperatures. The sex ratios were 0.37,0.43. and 0.43 at 20,25, and 30$^{\circ}C$. respectively. Female oviposited 1.4 eggs near parasitized host larva and the average distance between eggs of H. zilahisebessi andhost larva wre 0.92mm. The instrinsic increase rates(r$\sub$m/) of H. zilahisebessi were 0.12, 0.19 and 0.27, and net reproduction were 31.0, 40.2, and 40.8 at 20,25, and 30$^{\circ}C$, respectively. Female of H. zilahisebessi oviposited mainly on the 3rd larva and sex ratio was 0.42, wheras the ratio was declined to 0.1 on the 1st larva.


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