5 advantages of bio-pesticide
1. The toxicity of biological pesticides is usually lower than that of traditional pesticides;
2, strong selectivity, they only work on the target pests and a few closely related organisms, and harmless to humans, birds, other insects and mammals;
3. Low residue and high efficiency. A very small amount of bio-pesticides can perform high-efficiency effects, and it usually decomposes rapidly. Overall avoids environmental pollution problems caused by traditional pesticides;
4. It is not easy to produce drug resistance;
5. As a component of the integrated pest control project, it can greatly reduce the use of traditional pesticides without affecting crop yield.
Conceptual principle of biological pesticides
A biological pesticide refers to a preparation that kills or inhibits agricultural pests using biological organisms or their metabolites.
Biological pesticides can be classified into insecticides , fungicides, herbicides , acaricides, rodenticides, plant growth regulators, etc. according to the control objects. For the purposes of its use, biological pesticides are generally divided into two categories: direct use of biological organisms and utilization of physiologically active substances derived from organisms. The former includes bacteria, fungi, nematodes, viruses and antagonistic microorganisms, and the latter includes agricultural antibiotics and plants. Growth regulators, sex pheromones, feeding inhibitors, juvenile hormones, and physiologically active substances derived from plants.
Precautions
The right medicine. There are many kinds of pests and diseases, and the application range of biological pesticides is narrow and has certain selectivity. For example, Jinggangmycin is most effective against rice sheath blight, and spring oleomycin mainly controls rice blast.
Look at the medicine. Meteorological conditions such as temperature, humidity, and illumination will affect the effect of biological pesticides. When the temperature is 10-27 degrees, the feeding and absorption of pests are large, suitable for medication; when the temperature is higher than 30 degrees or less than 10 degrees, medication is used. The effect will be worse.
Properly take the medicine in advance. The control effect of biological pesticides is slightly slower than that of chemical pesticides. Therefore, the prediction of pests and diseases is strengthened, and it is effective in the early stage of the disease.
The concentration is appropriate, scientifically spaced. Antibiotics with low concentration have poor control effect and are easy to cause waste. High concentration may cause phytotoxicity. Therefore, proper biological pesticides should be used in time to ensure the control effect.
Properly formulated and mixed. Bio-pesticide blending can expand the scope of application and improve textile efficiency, especially when catastrophic pests are involved in disasters. Most biological pesticides should not be mixed with alkaline pesticides. It can be used as long as it is used.
Which biological pesticides are suitable for vegetables?
First, Metarhizium
Metarhizium is a fungal insecticide. Its active ingredient conidia is attached to the surface of the pest, and then germinates to produce hyphae invasion. It grows rapidly in the insect body and invades various organ tissues with the blood lymphatic circulation. Secretion of toxins, affecting the central nervous system of pests, destroying the integrity of cell structure, dehydrating tissues, causing death. Metarhizium has a wide range of hosts and can parasitize more than 200 species of insects. It is mainly used to control underground pests such as earthworms, earthen cows, golden needles, etc.; sucking pests such as whitefly and thrips; lepidopteran pests such as diamondback moth and cabbage caterpillar, and jumping armor.
2. Bacillus polymyxa
The broad-spectrum antibacterial substance produced by Bacillus polymyxa competes with the site to kill and inhibit pathogenic bacteria, and can induce plants to develop disease resistance, thereby achieving the purpose of controlling diseases.
It is a bacterial fungicide and is suitable for controlling bacterial wilt of tomato, pepper and eggplant.
Bacillus cereus
Bacillus cereus mainly achieves the purpose of effectively controlling diseases through competition, inducing plant resistance and antibiotic action, and reducing damage and loss to crops.
Single agent is mainly used to control ginger rot and eggplant bacterial wilt.
Bacillus licheniformis
Bacillus licheniformis achieves the goal of effectively controlling diseases by competing, inducing plant resistance and antibiotic action, and reducing damage and loss to crops.
It is a bacterial fungicide and has certain control effects on watermelon wilt and cucumber downy mildew.
5. Bacillus subtilis
Bacillus subtilis mainly achieves the purpose of effectively controlling diseases through competition, inducing plant resistance and antibiotic action, and reducing damage and loss to crops. It is a bacterial fungicide, has antagonistic effects on certain fungi, and has the function of promoting the development of vegetable roots and the growth of shoots.
Control of gray mold and powdery mildew of strawberry and cucumber, control of tomato bacterial wilt, and pepper wilt.
Six, Trichoderma
Trichoderma against cucumber disease such as gray mold is the direct inhibition of Trichoderma spp. or the indirect resistance to Cucumber, thereby achieving the purpose of controlling gray mold. In addition, it has certain control effects on diseases such as downy mildew, powdery mildew, anthracnose, chalk disease, wilt disease and root rot.
VII, Jinggangmycin
Jinggangmycin is an antibiotic produced by actinomycetes. It has strong systemic properties and is easily absorbed by cells and rapidly conducts in it, interfering with and inhibiting the growth and development of cells. Diseases such as germs.
Prevention and control of tomato chalk disease, white blight, control of winter blight, melon, blight, pea seed stem rot (blight disease); control of tomato, eggplant, sweet (spicy) pepper, etc. Stem-based rot of sunflower. and many more.
Eight, Shen Xiamycin
Shensinmycin is a special drug for controlling soil-borne diseases such as watermelon wilt, western melon vine disease and pepper blight. At the same time, it has the dual effects of prevention and treatment, and can increase the yield of crops while controlling diseases.
Nine, Ningnanmycin
Ningnanmycin is currently the drug of choice for anti-plant virus disease in China. The principle of Ningnanmycin treatment is to inhibit the activity of the inactivated mosaic virus and improve the plant's own resistance to achieve ultimate self-healing.
More pesticide knowledge , please pay attention to China Pesticide Network
Hebei Xinteli specilizes in producing and exporting Wire Mesh over 10 years. Bamboo Dream brand wire mesh is made of high quality iron wire through automatic process and sophisticated technique. The end product is level and flat with sturdy structure. Xinteli Wire Mesh category includes Welded Wire Mesh,Welded Wire Netting, Hexagonal Wire Mesh, gabions, square wire mesh,Wire Mesh Fence Panel; stainless steel wire mesh etc. Xinteli Wire Mesh is extensively used in industry and agriculture; building; transportation and mining for all such purposes as poultry house; egg baskets; runway enclosures; draining rack; fruit drying sreen fence.
Wire Mesh
Galvanized Wire Mesh,Hexagonal Wire Mesh,Welded Wire Netting,Welded Wire Mesh,Wire Mesh Fence Panel,PVC coated Wire Mesh
Hebei Xinteli Co., Ltd. , http://www.sinohardwares.com