Through the successive sampling and the stratified random sampling in soybean fields,114 dis- tribution samples of larvae of Plusia agnata Staudinger,Clanis bilineata(Walker),Heliothis armigera H(?)

 
  • 通過(guò)分層隨機與連片調查獲得114個(gè)樣本.
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国内精品美女A∨在线播放xuan