• 南瓜上饲养廿八瓢虫幼虫及蛹存活率成虫丧失产卵能力。

    Feeding on pumpkin, the insect had the lowest survival rate and had no fecundity.

    youdao

  • 室内测定了8杀虫剂二十八瓢虫幼虫及其主要天敌瓢虫柄腹姬小蜂的力。

    Toxicity of 8 insecticides to the larvae of Henosepilachna vigintioctopunctata Fabricius and its major larval parasite, Pediobius foveolatus Crawford , was investigated in the laboratory.

    youdao

  • 室内测试了半夏乙醇提取物二十八瓢虫拒食活性

    The anti-feeding activity of the ethanol extracts from Pinellia ternata Breit against Henosepilachna vigintioctopunctata(Fabricius)was studied in the laboratory.

    youdao

  • 室内测试了半夏乙醇提取物二十八瓢虫拒食活性

    The anti-feeding activity of the ethanol extracts from Pinellia ternata Breit against Henosepilachna vigintioctopunctata(Fabricius)was studied in the laboratory.

    youdao

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