After spraying pesticides encountered rainy weather, it is the most headache for the majority of farmers, so there is no water-resistant pesticides? Here we take a look at the rain-fed spray pesticides.
In fact, for the moment, there are really not many pesticides that have powerful "waterproof" functions. When it rains, try not to spray pesticides until it rains. If it is really necessary to spray pesticides, you can avoid the loss of efficacy due to raining through the selection of systemic absorption, fast-acting, rain-resistant and microbial pesticides.
Systemic pesticides
Systemic pesticides can enter the plants through the roots, stems, and leaves of crops, and they are transported to other sites and function within a short period of time. For bactericides such as carbendazim, triadimefon and leaf blight, 80% of the active ingredients are absorbed into the tissues by the crop within 4 to 5 hours after application, and they are less likely to lose their medicinal properties due to rain leaching.
Fast-acting pesticides
For example, pesticides such as dichlorvos, extinction killer, monocrotophos, killer pine, enemy killer, fast killing spirit, speed killer, anti-inflution, pyrethroids and other pesticides have strong contact and poison. The killing effect is short for 1 to 2 hours after application, and 4 to 5 hours for killing the pests, which is less affected by the rainy season.
Wash-resistant pesticide
The fungicides Jinggangmycin, Weichenwei, Tricyclazole, and Quick-Like have good resistance to rain. Even if they encounter showers after 1 to 5 hours of application, they will not be affected by scouring.
Microbial active pesticide
Commonly used microbial pesticides such as Jinggangmycin, Kasugamycin, and Beauveria bassiana are more conducive to the germination and reproduction of their sporophytes in high humidity conditions. The use of such pesticides in cloudy and rainy days can give full play to their bactericidal and insecticidal effects.
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