Development, Reproduction and Longevity of Predator Orius sauteri Poppius(Hemiptera: Anthocoridae) when Reared on Three Different Preys

애꽃노린재(Orius sauteri) 발육,성충수명 및 산란에 미치는 먹이의 영향

  • Published : 2003.03.01

Abstract

Anthocorid bugs (Orius spp.) are known as polyphagous predators preying on thrips, aphids, mites, eggs of small insects and whiteflies. This study was conducted to investigate the nym-phal development, survival rate, longevity of Orius sauteri adult and oviposition, when nymphs of western flower thrips (Frankliniella occidentalis) and cotton aphid (Aphis gossypii), and eggs of two-spotted spider mite (Tetranychus uritcae) were fed as diets. Nymphal development of female/male O. sauferi fed with F. occidentalis, A. gossypii and T urticae took 12.2/12.8, 13.0/l3.2, and 17.9/17.8 days at 27$^{\circ}C$, respectively, Survival rates during nymphal development were 96.4, 78.4, 73.8%, longevity of female/male adults were 55.9/51.0, 30.2/30.8, and 25.8/25.1 days, and daily oviposition were 5.6, 4.1, and 1.9 eggs, respectively. Oviposition of O. sauteri fed with F. occidentalis usually began 3-4 days after emergence at 27$^{\circ}C$, and reached at its peak of 7-8 eggs female day 20-40 days after emergence.

27$^{\circ}C$ 항온조건(60-70% RH, 16L : 8D)에서 꽃노랑총채벌레(Frankliniella occidentalis) 2령유충, 목화진딧물(Aphis gossypii) 1-2령 약충, 점박이응애(Tetranychus urticae) 난을 먹이충으로 공급하였을 때, 애꽃노린재의 발육, 생존율, 성충수명과 산란수를 조사하였다. 암/수별 약충의 발육기간은 각각 12.2/12.8, 13.0/13.2, 17.9/17.8일로, 꽃노랑총채벌레 2령 유충을 먹이로 공급하였을 경우 가장 짧았다. 애꽃노린재 약충 기간동안 생존율은 각각 96.4, 78.4, 73.8%3-꽃노랑총채벌레 2령 유충을 먹이로 공급하였을 경우 가장 높았다. 암/수의 성충수명은 각각 55.9/51.0, 30.2/30.8, 25.8/ 25.1일로 꽃노랑총채벌레의 2령을 먹이로 공급하였을 경우 가장 길었으며, 암컷 성충의 일일산란 수는 각각 5.6, 4.1및 1.9개였다. 꽃노랑총채벌레를 먹이로 공급하였을 때 애꽃노린재는 우화 후 3-4일 경부터 산란을 시작하여 20-40일 사이에 가장 많이 산란하였고, 일일평균 최대산란수는 7-8 개였다.

Keywords

References

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