不同药剂对香梨腐烂病的防治效果

Comparison of Control Effects on Koler Pear Canker Using Different Fungicides

引进溃腐灵和木焦油,与本地区常用杀菌剂植腐灵、甲硫·奈乙酸、甲基硫菌灵进行田间比较试验。结果表明,3%甲基硫菌灵处理的愈合宽度可达14.10 mm,明显高于其他药剂;2.0%溃腐灵和50%木焦油处理的病斑愈合完整、干净,复发率低;筛选出更健康、更安全、更有效的病斑涂抹剂为2.0%溃腐灵、50%木焦油及3%甲基硫菌灵,适用于香梨生产中大面积推广和应用。

Introducing Kui Fu-lin and wood tar had a comparison test with Zhi Fu-ling（HA-Cu）,thiophanate-methyl＋NAA and,thiophanate-methyl which used in thelocal disease spot in the field. The results showed that the healing width was 14.1 mm by thiophanate-methyl,significantly higher than other fungicides.Kui Fu-lin and wood tar disease spot had healing complete,cleaner and low recurrence rate. The disease spot daub agent whose ingredients were 2.0% Kui Fu-lin,50% wood tar and 3% Thiophanate-Methyl has been screened. It was more healthy,more secure,more effective fungicides and applicable to the widespread promotion and application in the production of Korla pear.