不同种衣剂对玉米茎腐病的防治效果

Control Efficiency of Different Seed Coating Agents on Maize Stalk Rot

研究了3种种衣剂对玉米茎腐病的防治效果。结果表明:咯菌腈、阿维菌素和阿维菌素+咯菌腈3个处理对苗期茎腐病的防治效果不明显,但在玉米成株期对玉米茎腐病均有不同程度的防治效果,其中阿维菌素+咯菌腈的防治效果最好,防效为36.55%。咯菌腈对玉米小斑病、弯孢菌叶斑病、褐斑病和南方锈病4种病害均起到了一定程度的防治效果,防效分别为17.61%、24.28%、22.67%和18.09%。

The control effects of three seed coating agents on maize stalk rot were studied.The results indicated that fludioxonil,abamectin and fludioxonil＋ abamectin had little efficiency at seedling stage,while they had various degree of efficiency at adult stage.The control effect of fludioxonil＋ abamectin was the best（36.55%）.The control effects of fludioxonil to Helminokosporicum turcicum Pass,curvularia leaf spot,brown spot and southern corn rust were 17.61%,24.28%,22.67% and 18.09%,respectively.