几种新型药剂防控小麦赤霉病田间药效评价

摘要

In order to find high efficacy, safe fungicides against wheat scab, the field effect trails with different fungicides were carried out in 2016. The results showed that thiophanate + tebuconazole 48% SC 1 500 mL/hm2, pyraclostrobin 25% SC 900 mL/hm2, pyraclostrobin + epoxiconazole 17% SE 750 mL/hm2 and trifloxystrobin + tebuconazole 75% WG 225 g/hm2 had better control effects on wheat scab, and these four fungicides could promote wheat growth.%为筛选防治小麦赤霉病的高效、安全药剂，选用7种药剂进行了田间药效试验。结果表明：在小麦扬花初期（扬花率10%）和第1次药后5 d分别用药，48%甲硫·戊唑醇SC 1500 mL/hm2、25%吡唑醚菌酯SC 900 mL/hm2、17%唑醚·氟环唑SE 750 mL/hm2、75%肟菌·戊唑醇WG 225 g/hm2对小麦赤霉病的防效较高，且促生长、防早衰效果明显。