大麦与谷类科学

小麦白粉病是小麦生产上重要的病害之一,严重影响着小麦的产量与品质。为了筛选防治小麦白粉病高效经济的新药剂,本研究对多种药剂进行了药效试验。结果表明,30%醚菌酯SC 25 m L/667 m2对白粉病的防治效果最好,且持效期较长,药后25d防效达87.95%;其次为25%吡唑醚菌酯SC 40 m L/667 m2,药后25 d防效达82.84%。上述药剂均对小麦安全。

Wheat powdery mildew is one of the most important diseases in wheat production, seriously affecting the yield and quality of wheat. In order to select new effective and economical fungicides for controlling this disease, we performed a field trial to assess the control efficacy of various fungicides against it. Among all treatments, 30% kresoxim-methyl SC had the strongest control efficacy,which also had longer duration. At 25 days post treatment(dpt), the control efficacy of 30% kresoxim-methyl SC reached 87.95%,followed by 25% pyraclostrobin SC with the control efficacy of 82.84% at the same time. The above-mentioned agents were safe to wheat. These research results lay important foundations for large-scale applications and promotion of these agents in the future.