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在南京市蔬菜公司贮藏的马铃薯块上共发现7种病害,其中以干腐病(Fusarium spp.)和细菌性软腐病(Erwinia spp.)最严重,从健康和发病的薯块上共分离到7个属的真菌和5个属的细菌。其中病原真菌有3个属,病原细菌有3个属。用0.05％CuSO_4·5H_2O_,0.1％多菌灵(有效成分)及二者的复配剂进行了2年较大规模的防病试验(约20000kg)。结果表明,所有3种处理马铃薯贮藏病害的总防治效果都很显著,一般这56.5％～77.0％以上。药剂处理后薯肉中Cu~(2+)的总含量低于有些品种的自然含量,多菌灵的残留量为0.36ppm,表明两种药剂安全可靠。
Seven diseases were found on the potato blocks stored by Nanjing Vegetable Company, of which the most serious were Fusarium spp. And Erwinia spp., Which were separated from the healthy and diseased tubers To 7 genera and 5 genera of fungi. Among them, there are 3 genera of pathogenic fungi and 3 genera of pathogenic bacteria. Two years of large-scale disease control test (about 20000kg) was carried out with 0.05% CuSO 4 · 5H 2 O, 0.1% carbendi (active ingredient) and their combination. The results showed that the total control effect of all three treatments on potato diseases was significant, which was generally 56.5% -77.0%. The total content of Cu 2+ in the processed potato was lower than the natural content of some species, and the residual amount of carbendazim was 0.36ppm, indicating that the two agents were safe and reliable.