Control Efficacy of 45% Propamocarb·Denamidone SC against Potato Late Blight  

作　　者：Xiao Chunfang Shen Yanfen Tian Henglin Gao Jianhua Zhang Yuanxue Chen Jiaji Cheng Qun Xu Yi 

机构地区：[1]China Southern Research Center of Potato

出　　处：《Plant Diseases and Pests》2014年第5期6-8,20,共4页植物病虫害研究（英文版）

基　　金：Supported by Special Fund for China Agricultural Industry Research System(CARS-10);Project of Agricultural Science and Technology Innovation Center of Hubei Province "Breeding Technology of High Yield and High Quality Potato and Breeding and Promotion of New Varieties"(2007-620-001-03)

摘　　要：The effects of different doses of 45% pmpamoearb · fenamidone SC on potato late blight were studied in the paper. The results showed that the overall control effect of 45% propamocarb · fenamidone SC against potato late blight on the 14^th day after the third spraying were 67.64% -83.78%. The yield of potato reached 19 972.5 -23 302.5 kg/hm^2, with higher marketable tuber rate and lower rotten tuber rate. With the increase in fungicide dose, the difference in control effect against late blight was significant, but the yield-increasing effect on potatoes was not significant. The appropriate application dosage of 45% propamecarb · fenamidone SC were 450 -675 g/hm^2.The effects of different doses of 45% pmpamoearb · fenamidone SC on potato late blight were studied in the paper. The results showed that the overall control effect of 45% propamocarb · fenamidone SC against potato late blight on the 14^th day after the third spraying were 67.64% -83.78%. The yield of potato reached 19 972.5 -23 302.5 kg/hm^2, with higher marketable tuber rate and lower rotten tuber rate. With the increase in fungicide dose, the difference in control effect against late blight was significant, but the yield-increasing effect on potatoes was not significant. The appropriate application dosage of 45% propamecarb · fenamidone SC were 450 -675 g/hm^2.

关 键 词：45% Propamoearb · fenamidone SC Potato late blight Control efficacy 

分 类 号：S435.32[农业科学—农业昆虫与害虫防治] TQ450.263[农业科学—植物保护]