[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/hm2 10％苯醚甲环唑·多抗霉素可湿性粉剂处理区药后20d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7d进行第2次施药.%[Objective] The aim was to screen the effective pesticide to control the occurrence, prevalence and damage of wheat scab. [Method] The control effect of 10% difenoconazole polyoxin WP at different application rates of 300, 375 and 450 g/hm2 on wheat scab was studied. [Result] The control effect of 10% difenoconazole polyoxin WP at 450 g/hm2 on wheat scab after 20 days reached 85. 8% which was obviously 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/hm2, 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.
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