秋葵叶斑病的药剂筛选试验

为了筛选出可有效防治秋葵叶斑病菌的化学药剂,该试验进行了8 种不同药剂对秋葵叶斑病菌的室内毒力测定和田间药效试验。室内毒力测定结果表明秋葵叶斑病菌对8 种药剂均表现敏感,其中对氟硅唑最敏感,从抑制率来看,对500mg/L 的丙环唑最为敏感;室外结果表明:8 种杀菌剂对秋葵叶斑病均有不同程度的防治效果,其中25%丙环唑防治效果最好,达到70%以上。综合得出丙环唑和氟硅唑对秋葵叶斑病菌抑制效果最好。

Agent Screening Test For Okra Leaf Spot Disease

In order to screen out the chemical agents that can effectively prevent and treat the leaf spot ofokra, the laboratory toxicity and field efficacy tests of 8 different agents were conducted. The indoor toxicitytest results showed that okra leaf spot was sensitive to 8 agents, among which fluosilazole was the most sensi?tive, and propiconazole of 500mg/L was the most sensitive in terms of inhibition rate. The outdoor resultsshowed that all the 8 fungicides had different control effects on okra leaf spot, among which 25% propicon?azole had the best control effect, reaching more than 70%. It was concluded that procyclazole and fluosilazolehad the best inhibitory effect on okra leaf spot.