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一、什么叫农药农药是用来防治农作物及农林产品的害虫、病菌、螨类、线虫、鼠类及杂草的化学物质;也包括提高这些化学物质的辅助剂、增效剂等。随着化学农药的发展,调节或抑制昆虫生长发育的保幼激素、抗保幼激素、昆虫生长调节剂及影响昆虫生殖或生物学特性的不育剂、驱避剂、拒食剂;调节植物生长发育的矮壮素、乙烯利、增产灵、三十烷醇、脱叶脲等以及微生物农药中的杀螟杆菌、苏云金杆菌等都属于农药的范畴。二、农药的种类目前原药品种有1,300多种,其中重要的约有500多种,大吨位生产的约有30—40种。为了记忆和使用上的方便,人们常把农药按用途、成分、防治对象、作用方式等进行分类。
First, what is pesticide Pesticide is used to control crops and agricultural and forestry products pests, germs, mites, nematodes, rats and weeds chemical substances; also include these chemicals to enhance the adjuvant, synergist and so on. With the development of chemical pesticides, juvenile hormones that regulate or inhibit the growth and development of insects, juvenile hormones, insect growth regulators, and infertility agents, repellents and antifeedant agents that affect the reproductive or biological properties of insects, and plant growth regulation The development of CCC, ethephon, ZSP, triacontanol, decolloin, etc., as well as the micro-biological pesticides, such as Bacillus, Bacillus thuringiensis belong to the category of pesticides. Second, the types of pesticides At present, there are over 1,300 kinds of original drugs, of which about 500 important, about 30-40 kinds of large-tonnage production. In order to remember and use the convenience, people often pesticides by use, composition, prevention and control objects, mode of action and so on.