摘要
This paper reported that carboxylesterase activity of the resistant strains is notably higher than that of the susceptible strain, and observable relation with resistant factor. Factor of the resistance to omethoate, dicofol, amitraz and pyridaben on -Tetranychus cinnabarinus- were 152.83, 55.59, 62.61, and 15.67 folds, respectively. The relative specific activity of the carboxylesterase in the four strains were 3.52, 2.60, 3.24, and 1.73, respectively, and up while the factor is on the increase. Three rotational spraying strains, dicofol and amitraz, dicofol and omethoate, omethoate and amitraz in turn the resistant level to relative pesticides and relative specific activity were lower than that of spraying one pesticide to a batch. The relative specific activity of carboxylesterase were 2.06, 2.52, and 2.41, respectively. These results showed that increasing of the carboxylesterase activity is a one of biochemistry mechanisms of development of resistance to omethoate, dicofol, amitraz, pyridaben in -T. cinnabarinus.- In addition, the larger activity of the enzyme, the higher resistance folds on the spider mite.
This paper reported that carboxylesterase activity of the resistant strains is notably higher than that of the susceptible strain, and observable relation with resistant factor. Factor of the resistance to omethoate, dicofol, amitraz and pyridaben on -Tetranychus cinnabarinus- were 152.83, 55.59, 62.61, and 15.67 folds, respectively. The relative specific activity of the carboxylesterase in the four strains were 3.52, 2.60, 3.24, and 1.73, respectively, and up while the factor is on the increase. Three rotational spraying strains, dicofol and amitraz, dicofol and omethoate, omethoate and amitraz in turn the resistant level to relative pesticides and relative specific activity were lower than that of spraying one pesticide to a batch. The relative specific activity of carboxylesterase were 2.06, 2.52, and 2.41, respectively. These results showed that increasing of the carboxylesterase activity is a one of biochemistry mechanisms of development of resistance to omethoate, dicofol, amitraz, pyridaben in -T. cinnabarinus.- In addition, the larger activity of the enzyme, the higher resistance folds on the spider mite.
出处
《农药学学报》
CAS
CSCD
1999年第2期91-93,共3页
Chinese Journal of Pesticide Science
基金
高等学校博士点专项科研基金资助项目
关键词
朱砂叶螨
羧酸酯酶
酶活性
抗药性
杀虫剂
杀螨剂
Tetranychus cinnabarinus-
Carboxylesterase
Pesticides
Resistance to pesticide
