Preface: The earliest pesticides in my country were insecticides, fungicides, herbicides, etc., and each pesticide has a different category, such as carbamates, organophosphorus, etc. 1. The pros and cons of pesticides

In agricultural production, we often see people spraying pesticides in the fields to kill pests, but pesticides can also pollute the environment and soil. If pesticides remain on the soil for a long time, pesticide residues will remain on crops, contaminating food and causing certain harm to human health. However, chemical pesticides can eliminate pests on plants and can also prevent and control infectious diseases to humans. So far, thousands of types of agriculture have been developed, and the amount of pesticides used has also increased dramatically, so agricultural production is now increasing in efficiency. However, with the increase in chemical pesticides, it has also had a certain impact on the ecological environment. Some pesticides also kill beneficial insects and birds when they kill insects. Excessive use of such pesticides will cause damage to the natural ecological balance. 2. Hazards of Pesticides

As for some pesticides that have been used for a long time, when used on pests, the pests have also developed resistance to the pesticides, so they need to be used multiple times for control, which also increases the cost a lot. cost. Some pesticides have gradually accumulated and polluted the soil due to their long-term use in fields. After some pesticides are absorbed by crops, they enter the bodies of animals, which can easily damage the food chain and harm human health. 3. Types of chemical pesticides

Chemical pesticides can be divided into organochlorine, organophosphorus, organomercury, carbamate and other preparations. The usage status of pesticides in the environment can be divided into powder, soluble liquid, volatile liquid, etc. These are all synthetic chemical pesticides. Organophosphorus pesticides are organic compounds containing phosphorus, which also contain nitrogen, phosphates, sulfur and other compounds. Generally, they are highly toxic, but they decompose easily and remain in the environment for a relatively short time, making them a relatively safe pesticide. However, the environmental pollution caused by this pesticide cannot be ignored in the short term. In severe cases, it may cause animal mutations, cancer, etc.