If you pay attention to the position of the right middle and lower parts of the pesticide packaging, you will find that it is low toxicity, non-toxic, high toxicity, etc., different words, we all know that this is telling us the toxicity of this product. Then, do you know that this is based on what content of the pesticide is graded, and don't prevent it from coming together:
These classifications are mainly based on the amount of pesticide lethal dose (LD50) to classify the toxicity of pesticides into the following five levels:
1. Highly toxic pesticides. The median lethal dose is 1 to 50 mg/kg body weight. Such as monocrotophos, phosphorus amine, methamidophos, Suhua 203, 3911, etc.;
2. Highly toxic pesticides. The median lethal dose is 51 to 100 mg/kg body weight. Such as carbofuran, fluoroacetamide, cyanide, 401, zinc phosphide, aluminum phosphide, arsenic, etc.;
3. Poisoned pesticides. The median lethal dose is 101 to 500 mg/kg body weight. Such as Dimethoate, Ye Yu San, Kuweiwei, Dixon, 402, pyrethroid pesticides;
4. Low toxicity pesticides. The median lethal dose is 501 to 5000 mg/kg body weight. Such as trichlorfon, insecticidal double, malathion, phoxim, acephate, metformin, butachlor, glyphosate, thiophanate, trifluralin, bentazon, atla Jin et al;
5. Microtoxic pesticides. The median lethal dose is 5000 mg/kg/kg body weight. Such as carbendazim, chlorothalonil, ethyl aluminum phosphate, zinc, zinc, sterilized Dan, simazine and so on.
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