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14d
防治蚧壳虫,不想来年后悔,冬季清园不能“心软”!
在过去防治蚧壳虫,多用杀扑磷,但是该成分已经禁用。目前防治蚧壳虫主要有效成分有毒死蜱、吡丙醚、噻嗪酮、螺虫乙酯等。有机硅等助剂是防治蚧壳虫时绝不能少的药剂,因为蚧壳虫外面有厚厚的蜡质层,使用渗透剂才能够使药效更好的发挥。
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4mon
花友看到植物感染介壳虫就丢掉,其实清除它并不难
1.感染介壳虫的症状 感染介壳虫后,植物叶片上很容易留下黑色霉污状斑块,甚至整片叶子都会变黑。这些其实是介壳虫排泄物,残留在叶片上导致 ...
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23d
月季杀虫最有效的方法
除此之外,也可以用高压水枪除虫,但要控制好压力。比较常见的害虫有刺蛾、介壳虫、蚜虫和钻心虫等,需要用敌百虫、扑虱灵、吡虫啉等药物 ...
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