• Title/Summary/Keyword: Neochrysocharis formosa

Search Result 7, Processing Time 0.039 seconds

Oviposition and Host Feeding Characteristics of Neochrysocharis formosa(Hymenoptera : Eulophidae), an Endoparasitoid of Liriomyza trifolii(Diptera: Agromyzidae) (아메리카잎굴파리 내부기생봉, Neochrysocharis formosa(Hymenoptera : Eulophidae)의 산란과 기주체액섭취 특성)

  • Moon, Hyung-Chul;Jeon, Yong-Kyun;Choi, Sun-Woo;Jung, Sung-Soo;Ryu, Jung;Choi, Jung-Sik;Choi, Young-Geun;Hwang, Chang-Yeon
    • Korean journal of applied entomology
    • /
    • v.43 no.1
    • /
    • pp.21-26
    • /
    • 2004
  • These studies were carried out to investigate the oviposition and host feeding characteristics of Neochrysocharis formosa Westwood, an endoparasitoid of Liriomyza trifolii. N. formosa female oviposited inside the abdomen at the rear end of the host larva. Number of eggs and host feeding per day of N. formosa tended to increase as temperatures go up. The ratio of oviposition and host feeding of N. formosa were 0.5, 0.9, 1.0 and 1.0 at 15, 20, 25, and 30$^{\circ}C$, respectively. In 25$^{\circ}C$, number of eggs and host feeding were 176.0 and 188.7, respectively, and aduly female longevity was 11.8 days. N. formosa female preferred to the 3rd rather than 1st and 2nd larva for oviposition and host feeding.

Occurrence of Liriomyza trifolii and its Biological Control using Neochrysocharis formosa in Eggplant Greenhouse (시설가지에서 아메리카잎굴파리 발생과 Neochrysocharis formosa (Hymenoptera: Eulophidae)를 이용한 아메리카잎굴파리 밀도억제 효과)

  • Moon, Hyung-Cheol;Lim, Ju-Rck;Ryu, Jeong;Shin, Yong-Kyu;Hwang, Chang-Yeon
    • Korean journal of applied entomology
    • /
    • v.46 no.3
    • /
    • pp.425-430
    • /
    • 2007
  • Occurrence of Liriomyza trifolii and its biological control efficacy using Neochrysocharis formosa were evaluated in two eggplant cropping systems of spring and autumn cultivation. L. trifolii adults began to be attracted on a yellow sticky traps from late April and they increased from early June. A high density of L. trifolii adults was maintained from middle June to middle July. The releases of two N. formosa per plant with 3 times as weekly intervals from May 25, 2004 for spring culture resulted control effect of 90.1% in parasitism to L. trifolii in late July. The releases of two N. formosa per plant with 4 times as weekly intervals from August 31, 2004 for autumn culture resulted control effect of 81.3% in population of L. trifolii with 64.4-69.9% in parasitism.