The pathogen, characteristics, pathogenic mechanism, infection cycle, occurrence regularity and damage symptom of cotton Verticillium wilt are expounded in the
[Objective]The paper was to screen the effective agents against kiwifruit bacterial canker in Wanzhou District of China. [Method]Ten kinds of common commercial
[Objective]The paper was to study optimum chemical agents and control periods against rice false smut( Ustilaginoidea virens) in single cropping middle-late ric