柑桔溃疡病[Xanthomanas-citri(Hasse)Dowson]是我县甜橙类的主要病害.被害柑桔常发生落叶、枯枝和落果,导致树势衰弱、产量下降.为了选出一种防效高、毒性低、副作用小的新型杀菌剂,1986年我们做了高脂膜等药剂不同浓度的防治柑桔溃疡病效果试验.一、材料和方法 Citrus canker [Xanthomanas-citri (Hasse) Dowson] is the main disease of the sweet oranges in our county.The fallen leaves, dead branches and deciduous fruits often occur in the damaged citrus trees, resulting in the weakening of tree vigor and the decrease of yield. High, low toxicity, small side effects of new fungicides, in 1986 we made a high-fat film and other agents of different concentrations of citrus canker disease prevention and control test .A material and method