SOL生物农药防治黄瓜白粉病药剂浓度的筛选

Screening of Optimal Concentration of SOL Bio-Fungicides to Control Cucumber Powdery Mildew

生物农药[大豆油和蛋黄(Soybean oil and lecithin,SOL)]对黄瓜白粉病具有防治作用,本试验通过盆栽与大棚试验对SOL生物农药最适稀释浓度进行筛选,其中SOL300组表现出优异的防治效果,盆栽试验预防效果达到100%,治疗效果达到了97.54%;大棚试验发病初期治疗效果为86.09%,发病中期为60.84%。同时,SOL 300倍的防治效果显著高于甲基硫菌灵的防治效果。试验结果表明,SOL生物农药的最适稀释浓度为300倍。

A plant oil bio-fungicide （SOL） was used in the prevention and treatment of cucumber powdery mildew. The study was to screen out the optimal concentration for preventing and controlling of cucumber powdery mildew. The control effect of SOL at 300 times was very significantly better than other concentrations, which preventive effi- cacy of the potted experiment was 100%, the therapeutic efficacy was 97.54%. The therapeutic efficacy of early stage disease in greenhouse experiment was 86.09%, and at the mid disease stage, it was 60.84%. The control effect of SOL at 300 times was significantly higher than thiophanate methyl. The results suggested 300 times of SOL had very good control effect on cucumber powdery mildew.