1, spraying method: it is the most commonly used method to control crop diseases, weeds and pests in the field. The pesticide preparation used in liquid form is diluted with water and sprayed on the surface of crops to form a drug film, so as to achieve the purpose of controlling pests and diseases. Spraying requires sprayers, water sources and good water quality.
2. Powder spraying method: the pesticide powder is sprayed on the surface of crops by using the wind generated by the powder sprayer. Suitable for water-deficient areas, the work efficiency is high, but the powder has poor adhesion and strong elegance, and the control effect is generally not as good as that of spray method, which is easy to pollute the environment.
3, pouring method: it is a quantitative emulsifiable concentrate. Wettable powder or aqua, etc., diluted with water, stirred evenly, poured on plants or sprayed with rain with a water pump. It is mainly used for the prevention and control of pests in rice fields, and the water consumption is 2-3 times more than that of spraying, which is not suitable for the prevention and control of most diseases.
4. Sprinkling method: it is suitable for applying granules and toxic soil. When making toxic soil, when the medicine is powder, it can be directly mixed with fine soil according to a certain proportion. When the liquid is used, the medicine should be diluted with a small amount of water, and then sprayed on the fine soil with a sprayer to mix well. Spreading poisonous soil to control pests on plants should be carried out when the fog water is dry, and underground pests should be controlled after the fog water is dry. For highly toxic pesticides, they cannot be made into toxic soil for spreading.
5. Soil treatment method: combined with ploughing, pesticides are applied to the ground by spraying, dusting or spreading, and then turned into the soil layer, which is mainly used to prevent and control underground pests, nematodes, soil-borne diseases and insects and pupae in the soil, and also used to apply drugs with systemic agents, which are absorbed by roots and transmitted to the overground parts of crops to prevent and control pests and germs on the ground.
6. Seed dressing method: a certain amount of pesticides are mixed with seeds in proportion and then sown, which can pre-treat germs attached to seeds, underground pests and seedling diseases.
7. Seed and seedling impregnation method: A method of impregnating seed and seedling with a certain concentration of liquid medicine. The commonly used pesticides are water solvent and emulsifiable concentrate, which are used to prevent and control germs attached to seed and seedling. The concentration, temperature and soaking time of liquid medicine should be strictly controlled to avoid phytotoxicity.
8. Poison bait and poison valley method: mix the pesticides with stomach toxicity with the bait and grain that pests and rats like to eat, and apply them to the ground to prevent and control pests and rats that are harmful to the ground. To prepare poison valley, the grain should be fried or boiled half-cooked, dried half-dry, and then mixed with medicine.
9. Fumigation method: It uses poisonous gas produced by volatile pesticides to control pests and diseases, mainly used for pest control in soil, greenhouses, greenhouses, warehouses and other places.
10, Fumigation method: Smoke pesticide is mainly used, and the smoke generated after the pesticide is ignited is dispersed in the air, which plays a role in preventing and controlling pests and diseases. It is mainly used to control pests and diseases in closed places such as greenhouses, greenhouses and warehouses.
1 1, foam coating method: the pesticide with internal absorption is prepared into high-concentration liquid medicine, which is applied to the stems, leaves, growing points and other parts of plants, mainly used to control pests with piercing mouthparts and borers, and fungicides with certain permeability can also be applied to control fruit tree diseases.