1. 4种杀菌剂在秋季马铃薯晚疫病防治中的效果.
- Author
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丰加文, 林知许, 邓琳梅, 陈 晨, 王兴国, and 刘 霞
- Abstract
Potato late blight is a major disease affecting potato yield and can infect potato at different growth stages. The selection of appropriate fungicides to effectively control potato late blight is of great significance to potato production safety and increase of farmer's income. To select better fungicides for the prevention and control of autumn potato late blight, the field efficacy of four fungicides commonly used in potato late blight prevention and control were compared. The fungicides were applied five times during potato growth period. The incidence of each treatment was investigated, and the incidence, disease index and control effect were calculated. All four fungicides had good control effect, and the ranking of average control effect was 687.5 g/L Fluopicolide propamocarb SC > 10% Oxathiapiprolin OD > 100 g/L Cyazofamid SC > 50% Dimethomorph WP. Among them, the total average control effect of 687.5 g/L Fluopicolide propamocarb SC was the best, which was 70.90%, followed by 10% Oxathiapiprolin OD, which was 66.53%. In potato autumn planting season, 687.5 g/L Fluopicolide propamocarb SC and 10% Oxathiapiprolin OD could be used alternately for prevention and control of potato late blight. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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