大豆茬种玉米有残留药害怎么办

2025-03-17 02:43:12
推荐回答(1个)
回答1:

①点撒器法。把颗粒剂装入点撒器药斗中,手拿点撒器对准玉米喇叭口每株捏一下就行。
②手捏法。用拇指和食指取少量颗粒剂撒入心叶内。工作完毕后,及时用肥皂水洗净手
以往防治玉米钻心虫多采用药液灌心、喷雾或毒土撒心法,既费工费力防效差,又易引起作物受害和人畜中毒。用颗粒剂型农药防治玉米钻心虫,不但成本低、省工省力效果好,而且不易引起人畜中毒和作物受害,深受广大农户的欢迎。
防治适期:
在玉米心叶末期即大喇叭口期施药,是防治的最佳时期。
适宜用药量:
每亩玉米田用3%辛硫磷颗粒剂0.25-0.4公斤。
施药方法:
雨水会把颗粒融化掉 从而大大降低对玉米螟虫的防治 有最好的土办法 代玉米封垄时 在地里喷洒乐果 每10亩地约一瓶 用喷雾器一次喷洒大约6垄 这样地里就有浓重的药味 蛾子就不会在地里产卵 在蛾子平常年 地里的玉米螟少基本没有 在蛾子大发年间 这种效果防 会大大减少降低玉米螟虫的虫害。

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