Abstract

아메리카잎굴파리 외부기생봉인 굴파리좀벌의 온도별 알, 유충, 번데기 발육기간과 성충의 산란수, 기주체액 흡즙수, 성충수명, 저온 저장력 등을 조사하였다. 굴파리좀벌의 알기간, 유충기간, 번데기 기간은 <TEX>$25^{\circ}C$</TEX>에서 각각 1.3일, 4.5일, 6.3일이었다. 성충의 산란수, 기주체액 흡즙수, 성충수명은 <TEX>$25^{\circ}C$</TEX>에서 각각 305.3마리, 657.0마리, 25.1일이었다. 아메리카잎굴파리 유충 영기별 굴파리좀벌의 산란선호성과 흡즙선호성을 조사한 결과 각각 90.2%와 82.8%가 3령 유충에 집중되었다. 굴파리좀벌의 저온저장에 따른 50% 생존기간은 꿀물 20%희석 용액을 제공할 경우 <TEX>$5^{\circ}C,\; 10^{\circ}C,\;15^{\circ}C$</TEX>에서 각각 180일, 150일, 90일이었다. 굴파리좀벌 저온저장 후 산란수는 저장기간 30일, 70일, 140일에서 각각 190.8개, 104.0개, 89.4개였다. Experiments have been performed to investigate biological characteristics of Diglyphus isaea (Walker), an ectoparasite of Liriomyza trifolii (Burgess). At <TEX>$25^{\circ}C$</TEX>, development time of D. isaea was estimated as 1.3 days for eggs, 4.5 days for larvae and 6.3 days for pupae. Adult longevity was 25.1 days, and a female adult could lay 305.3 eggs throughout its lifetime. Number of L. trifolii parasitized or killed by the wasp was 962.2 individuals/adult. Most of all parasitized or killed larvae were identified as third instar. With 20% honeyed water as food source, half of the adults could survive 180 days at <TEX>$5^{\circ}C$</TEX>, 150 days at <TEX>$10^{\circ}C$</TEX>, and 90 days at <TEX>$15^{\circ}C$</TEX>. After storing at <TEX>$10^{\circ}C$</TEX> with absolute honey for 30 days, 70 days and 140 days, a female adult in room temperature laid eggs 190.8 individuals, 104.0 individuals and 89.4 individuals, respectively.

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