Bacillus polymyxa exists in the form of spores, with good temperature resistance and stable quality. "Bacteria are treated with bacteria", and the effect is lasting; "medicine and fertilizer" can not only control bacterial wilt, fusarium wilt, root rot, soft It is the most ideal agent for soil-borne diseases such as rot, and has obvious effects on promoting growth, increasing yield and improving quality; without any phytotoxicity and residues, it is the preferred microbial preparation for the production of pollution-free, green and organic vegetables; The control effect of bacterial wilt disease of similar crops is remarkable. The US Environmental Protection Agency (EPA) has listed it as one of the commercially available microbial species.
This product is a broad-spectrum microbial fungicide. Through the antibacterial substances and site competition produced by the active ingredient-Bacillus polymyxa, and the mode of inducing resistance, the pathogenic bacteria are killed and controlled, so as to achieve the purpose of disease control; has a certain therapeutic effect.
mechanism of action
The disease prevention mechanism of this product is "bacteria treatment with bacteria". Its active ingredient, Bacillus polymyxa, has strong colonization ability in plants such as roots, stems and leaves, and can prevent pathogenic bacteria from infecting plants through site competition. At the same time, the broad-spectrum antibacterial substances continuously secreted by Bacillus polymyxa can inhibit or kill pathogenic bacteria; in addition, Bacillus polymyxa can also induce disease resistance in plants.
Paenibacillus polymyxa has two major functions:
(1) Root irrigation can effectively prevent bacterial and fungal soil-borne diseases of plants, and at the same time, the bacterial and fungal diseases of plant leaves can be significantly reduced;
(2) It has obvious effects on promoting growth and increasing production of plants.
Bacillus polysaccharides has a good control effect on bacterial soil-borne diseases - plant bacterial wilt. In the late harvest period, field control of tomato, eggplant, pepper, tobacco, potato, Luo Han Guo and ginger bacterial wilt (ginger blast) The control effect can reach 70-92%, and the highest yield increase rate is 493%, even when the control incidence rate is as high as 97%.
Bacillus polysaccharides also has a good control effect on fungal soil-borne diseases-plant fusarium wilt. In the late harvest period, it can prevent fusarium wilt diseases such as tomato, eggplant, pepper, watermelon, melon, cucumber, bitter gourd, wax gourd, banana and strawberry. The control effect in the field can reach 65~85%.
Bacillus polymyxa is resistant to taro soft rot, Chinese cabbage soft rot, pepper root rot, flower root rot, Polygonatum root rot, Astragalus root rot, tomato damping-off, tomato blight and pepper blight And other soil-borne diseases also have a good control effect.
Application techniques for preventing and controlling soil-borne diseases (bacterial wilt, fusarium wilt, root rot, etc.)
Application period: sowing, dosage per mu (g): 40, dilution ratio: 50~100,
Medication method: soaking seeds and pouring,
Description: The amount of seed soaking is the amount of seeds required for planting a 666m3 field; soak the seeds for 30 minutes, dry and sow the seeds, and then pour the liquid medicine on the seedbed.
Application period: seedlings, dosage per 666m3 (g): 120, dilution ratio: 500,
Medication method: pouring,
Description: The seedbed is poured in the middle of the seedling raising, and if it is falsely planted, the nutrient bowl required for planting the 666m3 field is poured and poured.
Application period: transplanting and planting, dosage per 666m3 (g): 360~600 500~1500,
Dilution multiple: root irrigation or spraying, medication method: medication on the day of transplanting is particularly critical; 100 grams of water is 50-150 kg.
Medication period: flowering and fruiting or initial disease, dosage (gram) per 666m3: 360~600 500~1500, dilution ratio: root irrigation or spraying, medication method: 100 grams of water is mixed with 50~150 kilograms to generally irrigate roots without diseased plants .
Remark:
1. When irrigating roots, it is best to use it in conjunction with organic fertilizer or biological bacterial fertilizer, rooting agent, etc., such as nematodes on the roots, it must be used in conjunction with nematicide;
2. The diseased single plant is irrigated with 50~150 times of liquid alone (each plant shall not be less than 250 grams of liquid medicine), the effect is better;
3. For seriously ill fields, appropriately increase the dosage and frequency of medication, the effect is better.
1. The use of technology to prevent and control leaf diseases
Spray with 150~450 times of liquid before the onset or at the beginning of the onset, spray once every 7~10 days, and continuously prevent and control it for 2~3 times.
When foliar spraying, it is best to mix it with foliar fertilizers (such as humic acid, micro-fertilizer, etc.) and plant growth regulators (such as brassinolide, etc.).
2. Use technical points
2.1 For the prevention and control of soil-borne diseases such as bacterial wilt and fusarium wilt, the use of drugs at the seedling stage can not only improve the control effect, but also have the effect of preventing and curing diseases at the seedling stage and strengthening the seedlings, so do not omit it.
2.2 The application should be carried out in the evening. If there is heavy rain within 24 hours after the application, it should be applied once after the weather is clear;
2.3 When the soil is wet, the dilution ratio should be reduced to ensure that the liquid medicine is absorbed by the soil of the plant roots; when the soil is dry, the planting density is high or the irrigation is applied, the dilution ratio should be increased to ensure that the soil of the plant roots is thoroughly irrigated;
2.4 This product can be used in combination with base application or hole application of organic fertilizer and biological bacterial fertilizer, as well as in combination with chitin, rooting agent, nematicide and foliar fertilizer, which can significantly enhance the control effect and promote crop growth. However, it is not advisable to mix or use it with chemical pesticides that kill bacteria directly, otherwise the effect may decrease!
Precautions
1. For the prevention and control of bacterial wilt and fusarium wilt, the use of drugs at the seedling stage can not only improve the control effect, but also have the effect of preventing and controlling the diseases at the seedling stage and strengthening the seedlings, so do not omit it.
2. The application should be done in the evening or in the morning, not in the sun or before the rain; if there is heavy rain within 24 hours after the application, it should be applied once after the weather is fine.
3. When the soil is wet, reduce the dilution ratio within the registration range to ensure that the medicinal solution is absorbed by the plant root soil; when the soil is dry, the planting density is high or when irrigated, increase the dilution ratio within the registration range to ensure that the plant root soil Drenched.
4. It cannot be used with sterilizing chemical pesticides at the same time.
5. After the package is opened, it is best to use it up at one time. If it is not used up, it should be sealed and stored in a cool and dry place.
