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枣树驱虫方法

更新时间: 2021-03-11 18:47:59     

1、挖茧或扬土灭茧 春季解冻后至幼虫出土前(3月份至6月 上 旬),可在树干根颈部挖拣越冬茧,尤其要注意上下树皮的缝隙处。也可在晚秋幼虫脱果入土做茧越冬后,把枣树根颈部的表土(距干约30厘米内,深10厘米),铲起撒于田间,并把 贴于根颈部的虫茧一起铲下,使虫茧长期暴露在地表,经过冬季风吹日晒及冰冻而死亡。

2、采用此法,该害虫的死亡率高达90%以上,而且方法简便,可起到春季挖虫茧灭虫的作用 。

关键词: 枣树 方法

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