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报道了万寿菊(TageteserectaL.)粗提物和α-三聚噻吩对小菜蛾Plutelaxylostela(L.)成虫产卵忌避作用的生测结果,万寿菊根甲醇索氏提取物对小菜蛾成虫产卵有强烈忌避作用。在室内,根甲醇索氏提取物(10000mg/l)的非选择性产卵忌避率为9733%;室外盆栽试验结果表明,万寿菊根甲醇索氏提取物浓度为2000mg/l,对小菜蛾成虫的产卵忌避率为5648%。
The results of bioassay of Tageterectomy L. crude extract and α-tri-thiophene on oviposition and toxicity of Plutella xylostella (L.) adults were reported. Strongly avoid the role. In laboratory, the non-selective ovipositing of root extract of Soxhlet was less than 9733%. The results of outdoor pot experiment showed that the concentration of Soxhlet extract of Tagetine root was 2000mg / l, Moth adults ovipositing rate was 56 48%.