( 续)
病虫害:矮牵牛较少病害。我碰到的主要虫害是白粉虱
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可用溴氰菊酯或杀螟松等药物防治。若不及时防治,幼虫会把叶片吸枯,严重时整株死亡。
2006.11.10补充:以前我用了许多药效果都不大好。杀死了一批,另一批又长出来。后来用了吡虫啉(Imidacloprid)可湿性粉剂后,效果很好。现在白粉虱已经绝迹,不再危害我的矮牵牛了。
[此贴子已经被作者于2006-11-10 17:00:12编辑过]
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