Insecticidal activity of some plant extracts against aphids and co-toxicity mixed with chemical insecticides

 
  • 幾種殺蟲(chóng)植物對蚜蟲(chóng)的生物活性及與化學(xué)殺蟲(chóng)劑混用的聯(lián)合毒力
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国内精品美女A∨在线播放xuan