1. Biological agent for disease control 1, Trichoderma harzianum This is a pure biological agent and a common long-rooted anti-continuous cropping agent. It has two-way functions of conservation and prevention, and has a good control effect on Fusarium oxysporum fungal diseases. Its specific function is to form a protective cover around the roots to slowly absorb fungal diseases around the roots, so as to maintain the roots from being eroded by pathogenic bacteria, so as to grow roots, promote growth and utilize fungi.
2. Bacillus subtilis This is a popular biological agent with universal functions. It can not only sterilize with bacteria, control soil-borne diseases, reduce soil-borne diseases, prevent and control various diseases of vegetables and crops, but also take root and strengthen seedlings, improve soil, prevent diseases and increase production. The longer it takes, the better the effect.
3. Qingkulike Qingkulike is a Chinese herbal medicine preparation, which is safe and has no residue. It has two-way effects of sterilization, disease prevention and vitamin supplementation, and has a good preventive effect on vegetable bacterial wilt, angular leaf spot, brown spot and stem rot. It is best to spray the roots with Qingkulik and garlic oil.
4. Other biological agents include validamycin, Penicillium and Bacillus licheniformis. In addition to the above three biological agents, these biological agents have no pollution and no residue, that is, fertilizer is also a bactericidal and disease-preventing agent, which can be mixed with fertilizer for application, root irrigation and spraying.
Second, biological agents and plant-derived agents 1, Beauveria bassiana and Metarhizium anisopliae are the most widely used microbial agents to control pests at present, which can control more than 200 kinds of crop pests, and have achieved good control effects on crops, vegetables, trees and crops, and are emerald green, moth-proof, residue-free, and free of any components, thus truly controlling pests with bacteria.
2. As a biological insecticide, Bacillus thuringiensis has a good control effect on many pests, including COLEOPTERA, Diptera, COLEOPTERA, HYMENOPTERA, mites, etc. 100 pests and ciliates of animals and plants, and is harmless to beneficial insects. Although the effect is a little slow, it lasts for a long time and does no harm to vegetables and people.
In addition to the above biological pesticides, biological pesticides also include: Cordyceps sinensis, Bacillus borer, spinosad and so on. Botanical pesticides: azadirachtin, matrine, nicotine, pyrethrins, etc. Except for biological agents, these are all plant-derived agents, which do not contain any chemical pesticides and will not leave any residue on vegetables, with good results. They are the first choice for family to grow vegetables to control pests and diseases.