【摘要】 采用ＦＡＯ推荐的浸渍玻片法，对中国梨木虱（Ｐｓｙｌｌａｃｈｉｎｅｎｓｉｓ）昆嵛山种群进行了敏感水平测定，建立了对８种供试农药的毒力基线。并对中国梨木虱莱阳种群和龙口种群进行了抗药性测定。结果表明，对溴氰菊酯、氯氰菊酯表现非抗药性；而莱阳种群对水胺硫磷、氧化乐果及对硫磷表现轻度抗药性；对双甲脒表现抗药性，对久效磷和氰戊菊酯表现明显抗药性，抗药性分别为２０．５倍和２４．４倍。更多还原

【Abstract】 Slide dip method which the FAO(1980)recommended was employed to monitor the tosicity sensitive level in Psylla chinensis.Using the insects collected from mountain,and the base lines of 8 kinds tasted pestcides were established.Laboratory studies were carried out to assess the pestcides resistance in Laiyang and Longkou insect colonies results showed that the tested insect colonies had no resistance to Decise and nurelle.the Laiyang,colonies has become pestcides resistance lower to isocarbophos,omethrin and parathoin and middle resistance to amitraz.Based on the result of LD50.the highest rank of the resistance on the tested colonies were 20.5-fold to monocrotophos and 24.4-fold to fenvalerat.更多还原