Resistance Selection of Tetranychus cinnabarinus to Three Acaricides and Its Management Strategy  

作　　者：HELin ZHAOZhi－mo 等 

机构地区：[1]KeyLaboratoryofEntomologyandPestControlEngineeringofChongqing,SouthwestAgriculturalUniversity,Chongqing400716,P.R.China [2]KeyLaboratoryofEntomologyandPestControlEngineeringofChongqing,SouthwestAgricultu

出　　处：《Agricultural Sciences in China》2003年第2期183-189,共7页中国农业科学（英文版）

摘　　要：The effects of retarding resistance evolution of mixing and sequencing acaricides were studied based on the resistance selection of three acaricides to Tetranychus cinnabarinus in the laboratory. Tetrany-chus cinnabarinus was continuously selected with fenpropathrin, abamectin and pyridaban for 28, 30 and 31 generations, respectively, and resistance factor increased to 65.6, 7.2 and 1.2 time, accordingly. Results of cross-resistance determination suggested that there were no cross-resistance existed among the three acaricides. Analysis of resistance selection and estimation of realized heritability (h2) of resistance to three single and two mixed acaricides showed that a mixture of fenpropathrin+abamectin would slow resistance development compared with a sequence of fenpropathrin followed by abamectin while the mixture of pyridaben+abamectin and the sequence of pyridaben followed by abamectin would effectively retard resistance evolution.The effects of retarding resistance evolution of mixing and sequencing acaricides were studied based on the resistance selection of three acaricides to Tetranychus cinnabarinus in the laboratory. Tetrany-chus cinnabarinus was continuously selected with fenpropathrin, abamectin and pyridaban for 28, 30 and 31 generations, respectively, and resistance factor increased to 65.6, 7.2 and 1.2 time, accordingly. Results of cross-resistance determination suggested that there were no cross-resistance existed among the three acaricides. Analysis of resistance selection and estimation of realized heritability (h2) of resistance to three single and two mixed acaricides showed that a mixture of fenpropathrin+abamectin would slow resistance development compared with a sequence of fenpropathrin followed by abamectin while the mixture of pyridaben+abamectin and the sequence of pyridaben followed by abamectin would effectively retard resistance evolution.

关 键 词：Tetranychus cinnabarinus ACARICIDE RESISTANCE HERITABILITY Strategy of resistance management 

分 类 号：S433.7[农业科学—农业昆虫与害虫防治] S482.5[农业科学—植物保护]