There are biological drugs, which can be roughly divided into seven categories: first,; Green plant-derived fertilizer, the key raw material comes from plant cells immediately. Such as matrine and azadirachtin.
The second is; Microbial strains are the source of fertilizer, and the key raw materials are live germs, bacteria and virus infections. Such as Beauveria bassiana and Spodoptera exigua heteroploid polyhedrosis virus infection.
The third is; Mineral source fertilizer, the key raw material is natural minerals. Such as mineral oil and sulphur powder.
The fourth is; The key of biological pesticides is the existence of nature itself, and the breeding of small animals that can prevent diseases. Such as Trichogramma dendrolimi and wasp with flat abdomen.
The fifth is; Biological pesticides and key raw materials exist in organisms for a long time and have no immediate toxic and side effects on diseases. According to the adjustment, they will affect the growth and development of crops or cause diseases. Such as brassinolide, gibberellic acid and insect attractants.
Sixth, yes; Egg white or oligosaccharin fertilizer can induce green plants to resist pests and diseases. Such as amino oligosaccharide, chitosan, lentinan, etc.
Seven is; The key raw materials of antibiotic fertilizer for agricultural machinery are formed by biological fermentation. Such as kasugamycin, ningnanmycin and avermectin.
What are the benefits of using biological pesticides? Compared with biological pesticides, organic pesticides come from nature, have lower toxic and side effects on people and animals, and are more compatible with the natural environment.
First, it is safer for people and animals. Most organic pesticides are slightly toxic or slightly toxic, so it is not easy to cause harm to users.
Second, it is more conducive to the quality of agricultural products. Organic pesticides are very soluble and not easy to pollute agricultural products. The quality and safety of the agricultural products produced are guaranteed.
Third, air pollution is small, which is generally safe for Nemesis. The vast majority of organic pesticides are highly selective, only reasonable for pests to be controlled, harmless to bees, birds, fish and frogs, and very easy to dissolve, and then return to nature after use.
Fourth, the selectivity is strong, and the prevention goal is relatively single. Chemical fertilizers, such as virus infection and sex attractants, only have effects on corresponding diseases. For example, infection with Spodoptera exigua polyploid virus can only prevent Spodoptera exigua, and infection with Spodoptera litura polyploid virus can only prevent Spodoptera litura.
Fifth, it is not easy to cause drug resistance. Mineral-derived fertilizers, green plant-derived fertilizers and biological pesticides all use natural ingredients to prevent diseases, just like Chinese medicine to prevent physical diseases. It is "treating both the symptoms and the root causes" and it is not easy to produce drug resistance. As reasonable as it has been used for many years.