摘要
[目的]筛选控制小麦赤霉病发生流行与为害的有效药剂。[方法]研究了不同施用剂量(300、375和450 g/hm2)的10%苯醚甲环唑·多抗霉素可湿性粉剂对小麦赤霉病的防治效果。[结果]450 g/hm210%苯醚甲环唑·多抗霉素可湿性粉剂处理区药后20 d对小麦赤霉病的防治效果为85.8%,明显高于对照药剂3%多抗霉素可湿性粉剂、10%苯醚甲环唑水分散剂、40%多.酮可湿性粉剂处理区的防治效果,且在试验剂量内对小麦安全并有一定的增产作用。[结论]10%苯醚甲环唑.多抗霉素可湿性粉剂是防治小麦赤霉病较为理想的药剂,建议施用剂量以商品量450 g/hm2为宜,第1次施药应在小麦扬花株率达10%左右时进行,间隔7 d进行第2次施药。
[ Objective ] The aim was to screen the effective pesticide to control the occurrence, prevalence and damage ol wheat scab. L Meth- od] The control effect of 10% difenoconazole polyoxin WP at different application rates of 300,375 and 450 g/hm^2 on wheat scab was stud- ied. [ Result] The control effect of 10% dlfenoconazole polyoxin WP at 450 g/hm^2 on wheat scab after 20 days reached 85.8% which was ob- viously higher than that of 3% polyoxin WP, 10% difenoconazole WG and 40% Duotong WP, Moreover, 10% difenoconazole polyoxin WP at application rates was safe for wheat and could increase the yield of wheat. [ Conclusion] 10% difenoconazole polyoxin WP is an ideal reagent to control wheat scab. It is suggested that the suitable application rate is 450 g/hm^2 , and the first application is carried out when the flowering rate of wheat reaches about 10%, and the second application is carried out after seven days.
出处
《安徽农业科学》
CAS
2013年第4期1519-1520,共2页
Journal of Anhui Agricultural Sciences
