What are the significance and effects of pesticide reduction
Whether planting fruit trees, vegetables, or saplings, pesticides are more or less used during the growing process, but because pesticides have strong polluting power and seriously affect water and the growth of other crops, reducing their use is necessary. So what is the significance of pesticide reduction?
1. What is the significance of pesticide reduction?
1. Improve the quality and safety level of agricultural products. Pesticide contamination of agricultural products and excessive residues are an important factor affecting the quality and safety level of China's agricultural products. Achieving scientific reduction of pesticide use will, to a certain extent, reduce pesticide contamination of agricultural products, and will also effectively control excessive pesticide residues in agricultural products. It will certainly greatly improve the quality and safety level of China's agricultural products and enhance the international competitiveness of agricultural products.
2. Protect the agricultural ecological environment. Pesticides are an important aspect of agricultural and rural non-point source pollution. For a long time, the heavy use of pesticides has not only caused serious pollution to farmland, but pesticides entering soil, water bodies, and the atmosphere have also damaged the agricultural water ecological environment. Achieving scientific reduction of pesticide use will reduce the impact of pesticides on the environment from the source, and is of great significance for protecting agricultural ecological security.
3. Reduce crop phytotoxicity and the occurrence of pesticide resistance. If pesticides are used unreasonably, especially in excessive amounts, crop phytotoxicity is likely to occur. In recent years, the unreasonable use of pesticides such as herbicides has caused frequent accidents of crop phytotoxicity. At the same time, the indiscriminate use, abuse, and excessive use of pesticides are the main reasons for the development of resistance in diseases, insects, weeds, and rodents. Achieving scientific reduction of pesticide use will effectively prevent the occurrence of crop phytotoxicity and delay the development of resistance.
4. Promote farmers' income growth. Achieving scientific reduction of pesticide use can not only ensure increased agricultural production, but also reduce the cost of pesticide use, and therefore is also conducive to improving agricultural efficiency and increasing farmers' income.
2. How are pesticides used?
1. Dusts. Dusts are difficult to dissolve in water and generally cannot be sprayed after adding water. Low-concentration dusts can be used for dusting, while high-concentration dusts are mostly used to prepare poisonous soil, poison bait, seed dressing, and soil treatment, etc. Dusts should be used in the early morning or evening when there is no wind or the wind is weak.
2. Wettable powders. They have strong hygroscopicity and can be dispersed or suspended in water after adding water. They can be used for spraying, poison bait, and soil treatment, etc.
3. Soluble powders. This type of pesticide can be directly mixed with water for spraying or splashing.
4. Emulsions. After adding water, they become an emulsion and can be used for spraying, splashing, seed dressing, seed soaking, poisonous soil, stem painting, etc.
5. Oil formulations. These are pesticides that can be directly used for spraying. They are special supporting pesticides for ultra-low-volume spraying, and water cannot be added when using them.
6. Granules and microgranules. These are pesticide formulations made into granules from technical pesticide materials and fillers. This type of formulation is not prone to causing phytotoxicity and is mostly used for pouring into leaf whorls, broadcasting, spot application, seed dressing, furrow application, etc.
7. Slow-release formulations. When in use, the pesticide is slowly released, which can effectively extend the effective period; this type of pesticide has a longer residual effect period, can reduce pollution and toxicity, and is used in the same way as granular pesticides.
8. Smoke formulations. These are fine powders or tablet-like substances made from technical pesticide materials, fuels, oxidants, combustion-supporting agents, etc. This type of formulation vaporizes after being heated, then condenses in the air into solid particles, forming smoke, and is mainly used to control forest, protected agriculture pests and diseases, and warehouse pests.