Field experiments of the degradation dynamics of dimethomorph 40%WP in cucumber and soil were carried out in Changsha and Hangzhou.The GC method was used for the determination of dimethomorph residue.Results showed that the half-lives of dimethomorph were 7.74 days（Changsha）and 7.82 days（Hangzhou）in cucumber,9.69 days（Changsha）and 9.53 days（Hangzhou...
