A Preliminary Study on the Biological Control of Tetranychus kanzawai Kishida in Angelica utlis Makino by Phytoseiulus persimilis Anthias-Henriot (Acarina: Tetranychidae, Phytoseiidae)

신선초에서 칠레이리응애에 의한 차응애의 생물적 방제 예비실험

  • 김용헌 (농업과학기술원 작물보호부 농업해충과) ;
  • 김정환 (농업과학기술원 작물보호부 농업해충과) ;
  • 한만위 (농업과학기술원 작물보호부 농업해충과)
  • Published : 1999.08.01

Abstract

Biological control of Tetranychus kanzawai by Phytoseiulus persimilis on the Angelica utilis was done in 'walk-in' plastic tunnels. The population of T. kanzawai nymphs and adults per 4 cm2 in damaged leaf decreased from 25 mites on July 22 after 25 predatory mites per m2 were released on July 23 to 0.4 mites on September 9 and then rose to 9.3 mites on October 16, 1997. Phytoseiulus persimilis could suppress T. kanzawai to low population level from August 13 to October 1.