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Bt emulsion: It is a commonly used bacterial bio-pesticide. Its finished product is beige emulsion. It has good emulsifying properties and wide insecticidal spectrum. It has a control effect on lepidopteran pests of more than 20 kinds of vegetables, tea, fruit, tobacco and other plants. 80-90%, the main control objects are pine caterpillars, corn borer, cotton bollworm, armyworm, rice leaf roller, tea caterpillar and so on. Bt emulsion is a stomach poison that can produce a special enzyme after eating. This enzyme can break down a protein in the insect's intestines, causing the insects to perforate the intestines, and the things in the intestines flow into the body cavity, and finally die from sepsis. When using, the temperature should be above 15 °C, generally 20 °C is appropriate, the application time should be 2-3 days earlier than the application of chemical pesticides.
Penicillium and Acaricidal Bacteria: The cabbage caterpillar eats the leaves with the green insects, and the intestinal wall will perforate quickly, becoming a mass of mud and dying. The bacillus is used to control rice leaf roller and rice mites, and can also control pests such as flies, mosquitoes, armyworms, pine caterpillars, white ants, and rice mites.
Beauveria bassiana: It is a fungal biopesticide with special effects on the control of pine caterpillars and rice pests. After the white stagnation liquid contacts the pest, it enters the pest through the body wall, and the mycelium will soon germinate and absorb the body fluid of the pest, so that the pest becomes stiff and dead.
Jinggangmycin: It has special effects in controlling rice sheath blight. It inhibits the hyphae of rice sheath blight, and has an effective period of 15-20 days. It is resistant to rain and is not toxic to humans and animals.
Agricultural antibiotics and plant antibiotics. These two classes of pesticides are fungal biopesticide. The antibiotics used in production include chrysanthemum, gentamicin, polymycin, oxytetracycline, griseofulvin, actinomycin and streptomycin. For example, Nongkang 120 is a new type of agricultural antibiotic, which has good control effect on powdery mildew of melon, fruit, vegetables, flowers, wheat, tobacco and rice sheath and wheat.
Biological pesticides are a class of pesticides made from microorganisms such as bacteria, fungi, and viruses. It is characterized by safety and reliability, does not pollute the environment, does not cause pollution to humans and animals, and is easy to obtain raw materials, and has low production cost. It is a pesticide with broad development prospects in the prevention and control of crop diseases and insect pests. The biological pesticides commonly found in production are as follows:
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