果树火疫病研究进展

方茜,徐幼平,蔡新忠

Research progress of fire blight in fruit trees

Xi FANG,Youping XU,Xinzhong CAI

图1 梨火疫病症状A.黑色手杖状弯曲的病枝；B.病枝上的菌脓；C.发病幼果上的水渍状病斑。

Fig. 1 Symptoms of pear fire blightA. Blackened shepherd’s crooked diseased shoot; B. Bacterial oozes on diseased shoots; C. Water soaking lesion on diseased young fruit.