Crop insecticides are essential, but the use of pesticides must pay attention to a series of problems such as time, weather, temperature, humidity and so on. Sometimes, if you accidentally fail to notice the weather, the efficacy may be greatly reduced. Therefore, we can choose some types of pesticides that are not afraid of rain. Let's get to know it. First, quick-acting pesticides This type of pesticide has a strong contact effect. It can kill pests after 1-2 hours of use. It will not affect the efficacy after 2 hours of treatment. Second, rain-tolerant pesticides These pesticides are resistant to rain and wash, and it will not affect the effect even if it rains for 2-4 hours, such as Jinggangmycin and Bordeaux mixture; Third, systemic pesticides Such as omethoate, sputum and other insecticides and bactericides such as carbendazim and thiophanate, more than 60% of the active ingredients can be absorbed by crops after 4-6 hours, even after heavy rain after 6 hours It can directly play the role of insecticide and sterilization. Tip: Do not add adhesive to the liquid when you are spraying. You can add some vegetable oil additives, but be sure to use the method specified in the instructions.
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Which pesticides are not afraid of pouring