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Susceptibility of the Predatory Mite, Neoseiulus californicus (Acari : Phytoseiidae) to Plant Extracts

포식성 천적 사막이리응애의 식물추출물에 대한 감수성

  • 김지오 (순천대학교 식물의학과) ;
  • 국용인 (순천대학교 한약자원개발학과) ;
  • 김상수 (순천대학교 식물의학과)
  • Received : 2016.10.12
  • Accepted : 2016.11.02
  • Published : 2016.11.30

Abstract

The susceptibility of the predatory mite, Neoseiulus californicus to extracts of Melia azedarach, Piper nigrum, Syringa velutina and their mixtures was evaluated in laboratory bioassays. In treatments with plant extracts tested, 76-86% of adult female predators survived after 7 days after treatment. Adult female predators treated with plant extracts tested produced 68.3-81.1% as many eggs as did control females and eclosion of eggs deposited by treated predators was not affected. Moreover, treatment of plant extracts tested showed no toxic effect on N. californicus eggs and produced 100% hatchability. Survival of N. californicus nymphs was not seriously affected by exposure to the plant extracts tested. Immatures of N. californicus survived on the leaf disc treated with plant extracts tested and 78-90% of immature predators reached adulthood. These results suggest that extracts of Melia azedarach, Piper nigrum, Syringa velutina and their mixtures expected to be promising candidates for use in integrated mite management program with N. californicus.

포식성 천적 사막이리응애의 멀구슬, 후추 정향의 추출물과 이들의 혼합물에 대한 감수성을 검정하였다. 사막이리응애 암컷성충은 실험 식물추출물들의 처리 7일 후에 76-86%의 생존율을 나타냈으며, 무처리 암컷성충에 비해 62.6-93.4%의 산란 수를 보였고, 산란된 난들의 부화에 영향이 없었다. 실험 식물추출물들의 처리는 사막이리응애 난에 대해 전혀 영향이 없어 100% 부화하였다. 또한 이들 식물추출물의 처리는 약충의 생존율에 큰 영향이 없었다. 사막이리응애의 발육태들은 실험 식물추출물들이 처리된 잎 절편에서 생존율에 큰 영향을 받지 않아, 78-90%의 개체들이 성충태에 도달하였다. 이상의 결과로 보아, 실험 식물추출물들은 식식성응애류의 종합관리 체계에서 사막이리응애와 함께 활용할 수 있을 것으로 생각된다.

Keywords

References

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