How effective is it to kill insects with pesticides?

How effective is it to kill insects with pesticides? Please guide the method of pesticide control if you want more effective, you can refer to the following two practices: first, according to the type and size of pests, chemical pests can be divided into aphids, planthoppers, moths, spiders, beetles, etc., different kinds of pests, the use of pesticides is also different. Insecticides with strong internal absorption such as trimethoprim and aphidipine should be used to control aphids, and diuretic should be used to control leaf-eating pests such as borer moths. When the pest is at a young age, the use of one agent has a very good effect, after 3 years old, two or more agents must be used together, such as with a certain concentration of penetrant will be better. 2. According to the characteristics of pests, some pests lay eggs on the leaf surface, some lay eggs on the back of the leaves, some like to eat young leaves, some like to eat old leaves, some move in the upper part of the plant, some in the lower part of the plant, some like to feed during the day, some like to eat in the evening. According to the above characteristics, the corresponding spraying methods should be adopted in prevention and control, and a better control effect will be achieved. Click to get more pesticide application techniques