What are the precautions for spraying pesticides?

When spraying pesticides , many farmers do not know how many pesticides to use; below, the Chinese pesticide network Xiaobian summarizes for you what are the precautions for spraying pesticides ?
The pesticide network Xiaobian summarizes the following points when you spray pesticides:
First, pay attention to the spray method If you use a manual sprayer, it is best to spray against the blade. If it is a mister or a high-pressure electric sprayer, it should be sprayed parallel to the plant. If it is sprayed on the plant, it will instead There are a lot of liquids sprayed onto the ground, causing waste. Spraying insecticides and bactericides is generally a person standing on the upper air vent, spraying the front side or just spraying the left or right side, and spraying the herbicide, especially the ground-sealed herbicide, is generally a reverse spray to destroy the film.
Second, pay attention to the order of pesticide mixing
If you spray a variety of pesticides at a time, such as insecticides , fungicides, foliar fertilizers, etc., you must remember that when you use the pharmaceutical liquid, you must first add foliar fertilizer, then add powder to kill or kill the powder. Insecticide, and finally add the pesticide of the emulsion type. In this order, the efficacy of the drug is less affected, and conversely, it may have a great impact or even failure on the effects of various pesticides.
Third, pay attention to the preparation of pharmaceutical liquids with pharmaceutical liquids, it is recommended that you use the second dilution method, that is, first dissolve the pesticides in a small amount of water, and then fill the water evenly, so that the agent can be dissolved more evenly in water, the effect is better.
Fourth, pay attention to the different targets of spraying and spraying, and the location of spraying is different; if spraying drugs to control pests such as thrips, aphids, whitefly, etc., the younger parts or middle and upper parts of the plants should be sprayed. In the prevention and treatment of general diseases, it is important to spray the old leaves that are easy to be affected in the middle and lower parts, and to prevent and cure diseases such as rickets, blight, blight and other diseases.
Fifth, pay attention to the timing of spraying
A reasonable method is to use the drug in the early stage of the pest. It is recommended to spray protective fungicides such as Guansheng, chlorothalonil and Aolito regularly. At the beginning of the disease, a symptomatic therapeutic fungicide is taken according to the type of the disease. Such as downy mildew, disease with Fuli cream, anthrax with spotted enemy force, Bichao, Aolito, Dakjia, bacterial keratosis with Shi Dakang and so on.

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