Some Ecological Notes of Oligota kashmirica benefica: Oviposition and Pupation Site, Storage Temperature of Adult, Release Effect

민깨알반날개(Oligota kashmirica benefica)의 몇 가지 생태특성: 산란 및 용화장소, 성충 저장온도, 방사효과

  • Choi Duck-Soo (Crop Research Division, Jeonnam ARES) ;
  • Kim Kyu-Chin (Department of Agrobiology, Chonnam National University)
  • 최덕수 (전남농업기술원 작물연구과) ;
  • 김규진 (전남대학교 농업생명과학대학 농생물학과)
  • Published : 2005.06.01

Abstract

The ecological characteristics of the specialist insect predator, Oligota kashmirica benefica, were investigated for developing artificial rearing method with special interest on the oviposition behavior, the pattern of adult emergence and temperature in storage, and its effect on the density of the citrus red mite, Panonychus citri. Female beetle oviposited eggs mainly, $95\%$ of the eggs, on the bottom of leaves of the yuzu tree, and $91.3\%$ of them were covered with ecdysis skin of the red mites or the feces of themselves. The rate of adult emergence of the beetle rose up to $86.7\%$ when the horticultural media was provided for pupation from $60\%$ when it pupated in upland soil. Most larvae, $88\%$ of them, were found from the surface to the depth of 2 cm in the horticultural media. The optimum temperature for the storage of the adult beetle was found to be $12^{\circ}C$, at this temperature the 96.7, 73.3 and $70.0\%$ of the beetle survived for 10, 20, and 30 days, respectively. The control effect of the citrus red mite was appeared highest by releasing the beetle at the rate of one beetle against 150 mites.

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