Korean Journal of Environmental Biology Vol. 40 No. 2 (p.187-198)

한국에서 열대거세미나방 알기생벌 Telenomus remus Nixon (가칭: 밤나방검정알벌) [검정알벌과]의 첫 보고 및 생물적 특성 연구

First report of Telenomus remus Nixon (Scelionidae), an egg parasitoid of Spodoptera frugiperda (J.E. Smith) (Noctuidae) in Korea and its biological characteristics
키워드 :
fall armyworm,Spodoptera frugiperda,egg parasitoid,Telenomus remus,biological characteristics

목차

Abstract
서 론
재료 및 방법
   1. 시험곤충
   2. 알기생벌의 형태 및 분자동정
   3. 생물적 특성 조사
결과 및 고찰
   1. 분자동정 (BLAST 분석)
   2. 생물적 특성
적 요
사 사
REFERENCES

초록

In this study, Telenomus remus Nixon (Hymenoptera: Scelionidae) was first reported as a natural enemy of the fall armyworm Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) egg collected from corn fields in Korea, and its biological characteristics was studied. Based on morphological and molecular analysis, the parasitoid emerged from S. frugiperda eggs was identified as T. remus. We found that T. remus can attack the eggs of S. frugiperda, Spodoptera litra and Spodoptera exigua under a laboratory condition. The longevity of T. remus female adult was longer than that of male adult. The egg-to-adult period of T. remus was not affected by the host age and sex. T. remus female adult laid at least 1-3 eggs a day to a maximum of 37 or more eggs, and the most oviposited on the 3rd to 4th day after emergence. The host preference for oviposition of T. remus adult was high in the order of S. litura>S. exigua>S. frugiperda. T. remus preferred to parasitize 1- and 2-day-old host egg rather than 3-day-old host egg. When compared to the sex ratio of T. remus progeny, the rate of female progeny was higher at the initiation time of oviposition, while the proportion of male progeny increased significantly with female adult age, especially after 8-day-old adult. This information may be useful for improving T. remus mass rearing system and developing a biological control program to control S. frugiperda.