现在许多农户家中都有用余的农药保存着，有的已有多年不用了，是否失效弄不懂，不敢使用。为此，我们向大家介绍一下鉴别农药是否好用的办法，农户可以自己去检查一下。lff剂粉剂在保管过程中如果吸潮结块，则需要放在阴凉通风处晾干，不要日晒、碾碎后才能使用，如果结块比较 Many peasant families now have spare pesticides to keep in their homes, and some have gone for years, failing to understand and are afraid to use them. To this end, we tell you about the identification of pesticides is easy to use, farmers can check it yourself. lff powder agent in the custody process if moisture absorption caking, you need to be placed in a cool, ventilated place to dry, do not sun, crushed before use, if the caking comparison