摘要
通过室内盆栽和田间药效试验初步研究了乙嘧酚磺酸酯防治黄瓜白粉病的应用技术。室内盆栽试验结果表明:乙嘧酚磺酸酯的EC50和EC90值分别为5.6162 g/mL和40.3993 g/mL。田间药效试验结果表明:25%乙嘧酚磺酸酯微乳剂在600～1200 mL/hm2剂量下,在黄瓜白粉病发病初期均匀喷雾2～3次,末次药后10 d的防效为79.0%～91.4%。25%乙嘧酚磺酸酯微乳剂可用于防治黄瓜白粉病。
The application technologies of bupirimate against cucumber powdery mildew （Sphaerotheca fuliginea） were studied by pot test and field trial. The pot test results showed that ECs0 and EC90 values of bupirimate were 5.616 2μg/mL and 40.399 3 μg/mL. The field trial results showed that when the plants were treated in early period of cucumber powdery mildew by spraying two or three times, the control effects of bupirimate 25% ME were 79.0%-91.4% at a dosage of 600-1 200 mL/hm2 on the 10th day after the last spraying. Bupirimate 25% ME could effectively control cucumber powdery mildew.
出处
《现代农药》
CAS
2013年第3期49-51,共3页
MODERN AGROCHEMICALS
关键词
乙嘧酚磺酸酯
黄瓜白粉病
室内活性
田间药效
bupirimate
cucumber powdery mildew
pot test activity
field control effect
