综合防治柑桔介壳虫的技术内容摘要:
2、可抑制虫卵。 4、壮旺树在春梢老熟后才环割保果,并经常观察环割口是否有介壳虫游走,及时用药喷之。 其次,在果实膨大期和放秋梢期间,防治第二、三、四代幼虫。 果实膨大期间由于气温比较高,介壳虫发生较快,用化学农药防治比较困难,有效的方法是利用天敌和喷药相结合。 1、前期不用拟除虫菊酯、高毒有机磷类农药、含柴油机油类杀螨剂,以保证天敌如瓢虫类有繁殖的时间。 2、不铲除果园杂草,让天敌有繁殖的场所。 3、注意观察,掌握介壳虫在自己果园发生的时间规律,并集中在爬虫期喷药防治。 选用的药剂有云大啶虫脒、吡虫啉和速扑杀。 第三,冬天尽量不使用环割措施促花,这样就不会引起介壳虫冬天繁殖。 冬天应补充桔树足够的肥水营养和控制好冬梢,花芽分化就会正常进行。 第四,重视冬季清园。 剪除病虫枝条、枯萎枝条,铲除果园里外杂草,并用石硫合剂和高效氯氰菊酯敌百虫全园交替喷雾。 专利查询。综合防治柑桔介壳虫的技术
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