The Effect of Adjuvants on Penetration of beta-cypermethrin Through the Epidermis of Cabbage Leaf  

作　　者：WANG Yi, ZHANG Li-ta, ZHENG Fei-neng, CHEN Fu-liang and LIANG Wen-ping( Institute of Plant Protection , Chinese Academy of Agricultural Sciences , Beijing 100094  Center for Molecular Science , Institute of Chemistry , The Chinese Academy of Sciences , Beijing 100101 ) 

出　　处：《Agricultural Sciences in China》2002年第3期313-318,共6页中国农业科学（英文版）

基　　金：spported by National Science Foundation of China(No.29873055)..

摘　　要：The effects of three types of adjuvant (mineral oil, higher aliphatic acid and nonionic surfactant) on the penetration of beta-cypermethrin through the cabbage leaf surface were studied. The results showed that the penetration was positively correlated with both the concentration of adjuvant and the time after application, in a given range of treatment. A synergistic effect of two types of adjuvant on the penetration was found. Some physical properties of emulsions were determined. The change of the structures of the cabbage leaf surface by these adjuvants was observed from photomicrographs. The mechanism concerned with the effect of these adjuvants on the penetration of beta- cypermethrin through the cabbage leaf surface was tentatively discussed.The effects of three types of adjuvant (mineral oil, higher aliphatic acid and nonionic surfactant) on the penetration of beta-cypermethrin through the cabbage leaf surface were studied. The results showed that the penetration was positively correlated with both the concentration of adjuvant and the time after application, in a given range of treatment. A synergistic effect of two types of adjuvant on the penetration was found. Some physical properties of emulsions were determined. The change of the structures of the cabbage leaf surface by these adjuvants was observed from photomicrographs. The mechanism concerned with the effect of these adjuvants on the penetration of beta- cypermethrin through the cabbage leaf surface was tentatively discussed.

关 键 词：ADJUVANT Nonionic surfactant PENETRATION BETA-CYPERMETHRIN Synergistic effect 

分 类 号：S635[农业科学—蔬菜学]