硅噻菌胺拌种防治小麦全蚀病试验研究

Experiment of Silthiopham Control of Wheat Take-all by Seed Dressing

用不同浓度的硅噻菌胺拌种小麦进行大田防治全蚀病试验结果表明:使用种子量0.5%～4.0%的硅噻菌胺拌种小麦,对小麦根部发病和小麦后期的白穗都有很好的控制效果,对成株期根部发病的防治效果为54.46%～83.38%,其中2.0 mL和4.0 mL的处理防效相当,超过了80%;对白穗的防效,各浓度处理均超过了90%.效果明显优于对照药剂粉锈宁.该药剂对小麦安全,无药害.

Test of Silthiopham control of wheat take-all by seed dressing was carried out. The results of test showed that seed dressing with 0. 5%-4. 0% Silthiopham of seed weight could effectively control wheat take-all in wheat roots and late stage whitehead. The control effect on adult stage wheat roots were 54. 46%-83. 38%. Treatments of 2. 0 mL/kg seed and 4. 0 mL/kg seed had an equivalent control effect, all over 80%. The control effect of each treatment to whitehead was over 90%. Silthiopham showed a better control effect than control Bayleton. It was salty to wheat.