【摘要】 本文是1964年对山楂红蜘蛛(Tetranychus vienuensis Zacher)抗药性测定的结果。本工作是在1962及1963年工作基础上进行的。结果证明河北省部分果园的山楂红蜘蛛对内吸磷和对硫磷产生了抗药性,而且对从未用过的乐果、乙硫磷、三硫磷等几种有机磷杀螨剂亦产生了抗药性。 对于内吸磷和对硫磷的抗性强度与使用药剂的次数呈正相关。防治抗性种群雌成螨的其他有效药剂为杀螨酯和石硫合剂等,防治抗性卵则以三氯杀螨砜和石硫合剂较有效。对感性种群雌成螨仍以内吸磷和对硫磷的效果为最佳,石硫合剂也较好。更多还原

【Abstract】 Preliminary tests indicated that the resistance of the resistant strain to parathion andsystox was respectively 48.6 and 80.2 times that of the susceptible strain in LC₅₀. Dataobtained showed that the resistant strain was also resistant to some organophosphoruscompounds such as Ethion, DDVP and Rogor, etc., which had not been used in field be-fore. Akar-338, lime sulphur and Dibrom was effective to resistant strain of female adult.TDN was proved to be effective to eggs.更多还原