Pesticides are products used to prevent, eliminate or control diseases, insects, grasses and other harmful organisms that endanger agriculture, forestry, and regulate the growth of plants and insects. In recent years, in the agricultural production, especially in food production, the number and types of harmful organisms have increased, the area has been expanded, and the hazards have been aggravated. The use of pesticides has also become more common and the use of pesticides has grown. How to scientifically and rationally use pesticides and raise the level of pest and weed control? On January 5th, Lei Shiming, agronomist of the Municipal Agricultural Institute, gave a detailed answer to this question. Combination of biological control and chemical prevention Biological control is the use of one organism to deal with another organism, which can be roughly divided into pest control, bird control, and bacteria treatment. It utilizes the interrelationships between biological species and uses one or more organisms to inhibit another or another organism, which is a method of reducing the population density of harmful organisms such as weeds and pests. "Its biggest advantage is that it does not pollute the environment. This is incomparable to pesticides and other non-biological pest control methods." Lei Shiming said that because of the long-term use of chemical pesticides, some harmful insects have already developed strong resistance to insecticides. Their natural enemies have been killed in large numbers, causing pests to be very rampant, and the use of biological control of pests and diseases can greatly increase the effectiveness of prevention and control, and thus have broad space for development. In his opinion, strengthening the combination of biological control and chemical prevention can not only give full play to the advantages of low toxicity and long-term effectiveness of biological control, but also make full use of the features of chemical pesticides that can quickly, efficiently, and simply eliminate pests, and effectively prevent and treat them. A large area of ​​crop pests occurs, achieving a very good integrated control effect. Promote low toxicity and high efficiency of biological pesticides Biopesticides means the use of living organisms (fungi, bacteria, insect viruses, transgenic organisms, natural enemies, etc.) or their metabolites (pheromones, auxins, naphthaleneacetic acid, 2,4-D, etc.) to kill agricultural pests or Inhibitory preparations. It is a naturally occurring or genetically modified agent and differs from conventional pesticides in its unique mode of action, low doses, and specificity of target species. With the rapid development of science and technology, the scope of biological pesticides has been continuously expanding, involving many species of animals, plants, microorganisms, and a variety of biologically related substances with pesticide functions, such as plant-derived substances, genetically modified pest-resistant crops, Bionic synthesis or modification of natural products Synthetic compounds, artificially bred pests, antagonistic organisms, pheromones, etc. "Overall, bio-pesticides are mainly selective, safe for humans and animals; they have little impact on the ecological environment; they can induce pest epidemics; they can take advantage of the production and processing of agricultural and sideline products." Lei Shiming told reporters, a large number of introduction and promotion of low The toxic and highly effective biological pesticides have great practical significance for prevention and control of crop diseases, weeds and weeds, and for improving the safety of agricultural products. Promote the professional control of crops The prevention of crop diseases, insects, and weeds in agricultural production has a large labor intensity, a lot of labor, high technical content, and high operational risk. It is a difficult point in modern agricultural production to achieve scale, standardization, and industrialization. In August last year, the state promulgated the Administrative Measures for the Specialized Prevention and Control of Crop Pests and Diseases. “Specialized unified defense has not only conformed to the direction of modern agricultural development, has adapted to the laws of pest control, and has become an effective way to solve farmer disease prevention and pest control, and reduce pesticide pollution. It has also increased the level of agricultural social services and reduced pesticide pollution. The goal of scientific and rational use of pesticides can be achieved, the burden on peasants can be effectively reduced, and the safety of agricultural products can be improved.†Lei Shiming said that the city is steadily advancing crops by following the principle of “government support, farmers’ willingness, gradual progress, and market operationsâ€. The specialization of diseases and insect pests prevented the ruling work and achieved certain results. It was deeply welcomed and supported by the majority of peasant friends. Strengthen Market Supervision Access Scientific and rational use of pesticides In the interview, Lei Shiming gave us some suggestions. First of all, the relevant departments must strengthen the management of highly toxic and highly toxic pesticides, strictly determine the spraying targets, and strictly prohibit the use of crops such as fruits, vegetables, and tea. Secondly, the competent administrative department must strictly manage the agricultural resources trading market, strictly prevent the entry of counterfeit and shoddy products into circulation, strictly supervise pesticide distributors, and establish well-input ledgers, and implement and implement Changde City's “To further strengthen pesticide management workâ€. Opinions, At the same time, improve the access threshold of pesticide products into the Changde market, and put quality and safety at the source. "Scientific and rational use of pesticides is based on the different nature of pesticides and the occurrence of pests and weeds, the rational use of pesticides, with the minimum amount of pesticides to achieve the best control effect, both to save costs and protect the environment." Lei Shiming said, This requires farmers to do the right medicine, timely fight drugs, appropriate dosage, pay attention to the selection of appropriate pesticide formulations and varieties, pay attention to the different types of crops, growth and physiological characteristics of the different reactions to the agents in order to avoid phytotoxicity, pay attention to the relationship between pesticides and natural enemies Consider the environmental conditions of the application. At present, there are hundreds of varieties of pesticides used in agricultural production in our city. According to statistics, the use of pesticides to control crop diseases, insects, and weeds contributes 10% to 15% of the annual increase in crop yield. Scientific and reasonable use of pesticides can not only protect crops, increase production, increase farmers' economic returns, but also allow consumers to eat green pollution-free, non-residue agricultural and sideline products. Dust Cleaner,Dust Remover,Dust Cleaner Machine,Dust Remover Machine ChangChun E-vida Technology Co.,ltd , https://www.evidatech.com