How to scientifically select pesticides in pollution-free crop cultivation

1. Give priority to biological pesticides. Commonly used biological insecticides and acaricides in production include: Bt, avermectin, liuyangmycin, huaguangmycin, anethole, rotenone, matrine, veratridine, etc.; fungicides include: jinggangmycin, kasugamycin, polyoxin, wuyiencin, agricultural streptomycin, etc.

2. Rationally select chemical pesticides. It is strictly prohibited to use pesticides with high toxicity, high residue, high bioaccumulation and high triple effect (teratogenic, carcinogenic, mutagenic) as well as their compound formulations. Such as methamidophos, carbofuran, 1605, 3911, omethoate, chlordimeform, methidathion, benzene hexachloride, DDT, isofenphos-methyl, aldicarb, methomyl, zinc phosphide, phorate, methyl parathion, parathion, monocrotophos, organic mercury preparations, etc. Choose chemical pesticides with high efficiency, low toxicity and low residue. The restricted chemical insecticides and acaricides include: trichlorfon, phoxim, dichlorvos, chlorpyrifos, cypermethrin, deltamethrin, fenvalerate, propargite, amitraz, hexythiazox, pirimicarb, tebufenozide, diflubenzuron, chlorfluazuron, buprofezin, etc.; fungicides include: Bordeaux mixture, DT, copper hydroxide, carbendazim, chlorothalonil, thiophanate-methyl, zineb, fosetyl-aluminum, metalaxyl, trisodium phosphate, etc.