Control Effect Experiment of Pesticide Against Tobacco Black Shank

The control effects of eight pesticides, including Bacillus subtilis B908 WP, 48% cuaminosulfate propamocarb AS, active microorganism fertilizers, 53% methalaxyl-mancozeb WG, 50% dimethomorph WP, 58% metalaxyl mancozeb WP(Baodasen), 58% metalaxyl mancozeb and 72% metalaxyl mancozeb, against tobacco black shank were studied. The results showed that the control effects of 48% cuaminosulfate propamocarb AS, 58% metalaxyl mancozeb WP(Baodasen), 58% metalaxyl mancozeb WP, active microorganism fertilizers, 72% metalaxyl mancozeb and 50% dimethomorph WP were good, particularly 48% cuaminosulfate propamocarb AS, whose relative control effect reached 67.48% at full incidence period. The relative control effects of the two biological pesticides, Bacillus subtilis B908 and active microorganism fertilizers, were up to 62.71% and 65.11%, respectively.