白兰花叶片青翠碧绿,花朵洁白如玉,芳香若兰,惹人喜爱。但常因管理不善,遭受病虫危害,引起叶色娈黄,花小失洁,影响观赏,令人扫兴。白兰花常见的病害有黄化病,炭疽病,根腐病;虫害有介壳虫,红蜘蛛,蚜虫
白兰花的主要病虫害有:黄化病、炭疸病及红蜘蛛、介壳虫等。①白兰花喜酸性土壤,其黄化病是因土壤偏碱,或浇灌用水偏碱所致。发病症状是叶片发黄,根系变黑腐烂。防治方法:用0.2%的硫酸亚铁水溶液喷洒叶面,每
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