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刺槐(Robinia pseudoacacia)适应性强、分布广、生长快、材质好、枝叶茂密、根系发达,具防风固沙、抗烟消尘、抗旱、耐盐碱的能力,是植树造林和庭园绿化的优良树种。刺槐花叶病发生分布普遍,是刺槐的常见病害,其症状表现为:系统花叶,叶片色泽不均匀,表现出淡绿、深绿相嵌的斑驳,并出现泡斑;叶片畸形,叶形变窄变长,严重者呈线状;叶腋不定芽萌发,抽生出节间极短的瘦弱小枝,叶片狭小,小枝的腋芽又再次萌发抽生小枝叶,如此逐级萌发、抽生,形成枝叶丛生的丛枝状态(图1)。
Robinia pseudoacacia is a good tree species for afforestation and landscaping because of its strong adaptability, wide distribution, fast growth, good material, dense foliage, developed root system, windbreak and sand fixation, anti-dust, drought resistance and salt tolerance resistance . Locust mosaic leaf locust disease is widespread and is a common disease of locust, its symptoms are as follows: the system of mosaic, leaf color uneven, showing light green, dark green inlay mosaic mottled, and the emergence of spot; leaf deformity, leaf deformation Narrow variable long, serious were linear; adventitious buds of leaf axils germinated, pumping out the very short, thin internode branchlets, leaves narrow, axillary buds once again germinating sprouting branchlets, so step by step germination, pumping, the formation of branches and leaves Of the bush state (Figure 1).