香蕉叶斑病的药剂防治研究

Studies on the control of the banana leaf spot diseases with pesticides

通过室内筛选和田间试验，得到防治香蕉叶斑病的3种化学药剂组合和1种生物农药组合。复配药剂12．5％腈菌唑乳油＋45％咪鲜胺水乳剂、40G氟硅唑乳油＋45％咪鲜胺水乳剂和12．5％戊唑醇可湿性粉剂＋12．5％腈菌唑乳油2年的田间防效均在71．6％～75．7X，显著高于1％中生菌素水剂＋4％枯草芽胞杆菌水剂的防效。

Three chemical fungicide mixtures and one biopesticide mixture were screened for control of the banana leaf spots by in vitro and in vivo experiments. The control efficacies of the three chemical mixtures （myclobutanil＋ prochloraz, flusilazole＋ prochloraz and tebuconazole＋ myclobutanil） were 71.6 % to 75.7 %, significantly higher than the biopesticide mixture （zhongshengmycin＋Bacillus subtilis） in field experiments in two years.