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A COMPARATIYE STUDY ON THE CONTROL EFFECTS OF AN INTRODUCED PARASITE, TRICHOGR4MMA MAIDIS [HYM. : TRICHOGRAMMATIDAE] VS. INDIGENOUS TRICHOGRAMMA SPECIES AGAINST BRASSICA PESTS

YIN Yong-sheng1; CHANG Jin-yu1; JI Shuan-gui1; ZHAO Huai-zhu2; WU Yu-cheng3   

  1. 1.Sorghum Institute. Shanxi Academy of Agricultural Sciences,Yuci;2.Scientific Committet of Qixian County,Shanxi;3.Agricultural & Husbandry Bureau,Qixian County,Shanxi
  • Received:1900-01-01 Revised:1900-01-01 Online:1989-05-08 Published:1989-05-08