How to reduce Pesticide residues

Minimize the use of pesticides.

Selecting varieties resistant to diseases and insect pests is the most economical, safe and effective method to control diseases and insect pests; ploughing the cultivated land deep in hot summer or the middle of winter before sowing can kill some bacteria and insect eggs, apply fully mature organic fertilizer, and strengthen field management after sowing. Creating environmental conditions suitable for crop growth but not conducive to the occurrence of diseases and insect pests can effectively reduce the occurrence of insect pests.

Specify the scope of use of pesticides.

According to the chemical properties and toxicity of pesticides, the use of pesticides with high toxicity, high toxicity, high accumulation and long residual period is prohibited in some crops. Among them, aldicarb, methamidophos and carbofuran can only be used for seed treatment or soil treatment of cottonseed, wheat seed, corn seed and sugar beet seed, and spray application of other crops should be strictly prohibited. Phoxim, which is used to control fruit pests, must be used 30 days before fruit harvest.

The concentration, dosage, dosage, times and methods of pesticide application should be strictly controlled.

Among the pesticide formulations, the residue of EC was larger, followed by milk powder and wettable powder, and water agent was lower. Among the methods of pesticide application, the residue of seed treatment, soil treatment and trunk binding method was higher than that of spraying and powder spraying. Special attention should be paid to the application of pesticides close to the harvest time, the varieties of chemicals with low toxicity and fast decomposition must be selected, and the dosage, concentration, application method, application times and prohibition time should be strictly controlled.

Strictly observe the last application time before harvest.

According to the safety interval of various pesticides. According to the principle of early treatment, pesticide residues can be greatly reduced by using drugs in advance in the growing period of crops and the early infestation of pests and pathogens.