First, the prevention and control of banana pests and diseases
1. Prevent banana leaf spots, usually the disease will appear on the leaves.
Recommended drugs and concentrations: 1,000 to 1,500 times 25% propiconazole dimethodane solution, 1,000 to 1,500 times 23% nitrile benzazole suspension solution, 1,500 times 20.67% DuPont Wondershade 1000 N solution, 500 to 1,000 times 25% propanedizole emulsion solution, 800 times 80% daisen manganese zinc wettable powder solution.
Control methods: spray leaves, other control methods, reasonable dense planting, do not plant too densely, strengthen water and fertilizer management without partial application of nitrogen fertilizer, timely remove the water in the banana garden, timely remove dead leaves, diseased leaves and weeds, so that the Jiaoyuan ventilation and light.
2. Prevent banana black star disease, which appears on leaves and fruits.
Recommended drugs and concentrations: 800 times 75% of bacillus clear wettable powder solution, 800 times 50% carbendazim powder solution, 800 times 80% of the daison manganese zinc wettable powder solution, 6,000 to 8,000 times 40% of DuPont fuxingin emulsion solution.
Control method: After budding and before bud opening, spray on buds and nearby leaves. Other control methods, strengthen management, improve disease resistance, and bagging of fruits.
3. Prevention and control of banana anthrax, which appears on fruits and false stems.
Recommended drugs and concentrations: 2% agricultural resistance 120 aqueous agent 200 times liquid, 500 to 800 times 50% carbendazim wettable powder solution, 800 to 1,000 times 75% bacillus clear wettable powder solution, 800 times 80% daisen manganese zinc wettable powder solution.
Control method: spray on the flower spike and small fruit during the panicle extraction period, other control methods, the fruit is bagged.
4. Prevention and control of heart rot in banana flowers and leaves, the disease will appear on leaves, false stems and fruits.
Recommended drugs and concentrations: For information about aphids, see "8. Banana aphids". Method: Regular spraying of aphids to eliminate vectors. Eight hundred to one thousand times 20% virus clear (A) solution.
Control method: mainly in the early and medium spraying. Other control methods: select disease-free and healthy seedlings, do not use seedlings in the diseased area as seedlings, keep the coke garden clean, remove weeds in time, eradicate diseased plants in time and burn intensively, strengthen the management of fertilizer water, do not favor nitrogen fertilizer, and crop rotation of sugarcane, rice, soybeans or peanuts.
5. Prevention and control of banana bunch top disease, the disease will appear on the leaves, false stems, fruits, etc.
Recommended drug and concentration: same as banana leaf heart rot.
Control method: Same as banana flower leaf heart rot.
6. Control of banana root knot nematodes, the disease will appear on the root system.
Recommended drug and concentration: 0.5% of soil linear loose granules, 20 grams per plant, 5% of Budweiser butych thiophore granules, 40 to 50 grams per plant.
Control method: Disinfect the soil before planting.
Recommended drug and concentration: five kg of 3% millole per acre, 0.5% of the soil line powder granules, twenty grams per plant, butyric budweiser winter granules 5%, 40 to 5 grams per plant.
Control method: After planting, first loosen the soil at the root of the banana, irrigate with medicine or base application and then cover the soil, and then water. Other control methods: do not use sick soil as a nutrient soil for seedlings, select disease-free healthy group culture seedlings, strengthen fertilizer and water management; tillage the soil before planting, and dry it well, rotating crops such as sugarcane, rice, soybeans or peanuts.
7, the prevention and control of banana blight, the appearance of the disease will be a devastating disease of the whole plant.
Recommended drug and concentration: 500 times 50% carbendazim powder solution, 2,000 times 32% gram aqueous solution.
Control method: For mildly diseased strains, once every seven days, with drugs to irrigate the rhizome site two to three times continuously. Other control methods: selection of disease-resistant varieties, strict implementation of the quarantine system, strict prohibition of the purchase of seedlings from the epidemic area. Promote the cultivation of seedlings in the disease-free group; timely drainage, fertilization should be more than 50 cm from the banana head; timely removal of diseased plants, incineration, soil disinfection in the coke garden, and take necessary isolation measures; banana plantations with serious diseases (incidence rate of more than 20%) can be considered for the destruction of the whole garden, and the coke garden that has been diseased cannot in principle plant bananas and crops prone to banana blight within 5 years, and should be planted with rice, sugarcane or peanuts.
8. Prevention and control of banana gum vein aphid, the disease appears mainly spread bundle top disease and flower and leaf heart rot.
Recommended drugs and concentrations: 1,500 times 5% of the 5% of the rotenone emulsion 1000 N solution, 3,000 to 4,000 times 10% of the imidacloprid wettable powder solution, 1,000 to 1,500 times 40% of the Leguo emulsion solution, 1,000 to 1,200 times 50% of the anti-aphid wettable powder solution, 2,500 to 5,000 times 2.5% of the bromethrin emulsion solution, 1,000 to 2,000 times 40% of the chlorpyrifos emulsion solution. A thousand times 20% 20% butyric Budweiser good winter solution.
Control Method: Regularly focus on banana heart leaves, young plants and adult plants to spray the head. Other control methods: colonization of seedlings without aphids.
9. Prevention and control of banana flower thrips, the appearance of the disease will make the peel rough.
Recommended drugs and concentrations: 1,000 to 1,500 times 5% rotenone emulsion, 3,000 to 4,000 times 10% imidacloprid wettable powder solution, 1,000 to 1,500 times 40% Lego butter emulsion solution, 1,000 to 1,200 times 50% anti-aphid detergency powder solution, 2,500 to 5,000 times 2.5% cypermethrin emulsion solution, 1,000 to 2,000 times 40% chlorpyrifos emulsion solution, 1,000 times 20% butythiogene budweiser good winter solution.
Control method: Spray in time to the time when the bud is bent down. Other control methods: strengthen water and fertilizer management, promote rapid bud opening, and shorten the period of harm.
10. Control of banana pseudostem weevils, when the disease appears, larvae and worms will eat false stems, petioles and flower shafts.
Recommended drugs and concentrations: 5,000 times 98% soluble powder solution of chlorpyridine, 1,000 to 2,000 times 18% solution of insecticide double aqueous agent, 1,000 to 2,000 times 48% of chlorpyrifos emulsion solution, 800 times 80% of dichlorvos emulsion solution, 500 times 40% of chlorpyrifos emulsion solution (injected into damaged false stems).
Control method: Focus on spraying in the evening and spray false stems from top to bottom to kill adults. Other control methods: seedlings from the pest-free group are used to kill the larvae in the moth tunnel; the garden is often cleaned, the old banana head is dug up, and then it is burned intensively.
11. Control of banana butterflies (leaf curlers), the disease will appear on the leaves.
Recommended drugs and concentrations: 1,000 to 2,000 times 40% of chlorpyrifos emulsion solution, 500 to 1,000 times of Bacillus thuringii powder (containing live spores 10 billion / g) solution, 1,000 to 2,000 times 5% of furunculus butterin emulsion solution, 3,000 to 4,000 times 10% of imidacloprid wettable powder solution, 500 to 80% of dimethoprim soluble powder or crystals, 2,55 to 3,000% of cypermethrin trifluorochlorolin emulsion solution.
Control method: timely spraying of larvae with medication. Other control methods: netting adult insects, manual removal of insect buds and eggs, cleaning the jiaoyuan in winter, and burning the turtle leaves in the garden in a concentrated manner.
12. Control of banana bulb weevils, the disease will appear larvae eat bulbs.
Recommended drug and concentration: 1,000 to 1,500 times 50% octylthion emulsion solution.
Control method: Apply into the planting hole when planting. Other control methods: Using seedlings from the pest-free group, the old banana head is dug up and then burned centrally.
13. Control of banana reticule bugs, the disease will appear nymphs sucking leaf juice.
Recommended drugs and concentrations: 1,000 to 2,000 times 48% chlorpyrifos emulsion solution, 1,000 to 1,500 times O% Leguo emulsion solution, 800 to 1,000 times 80% dichlorvos emulsion solution, 500 to 800 times 0% dimethoate soluble powder or crystal.
Control method: spray. Other control methods: remove the severely damaged leaves as early as possible and burn them intensively or bury them deeply.
14. Control of banana twill moth, the disease will appear larvae eating young heart leaves and leaf surfaces.
Recommended drugs and concentrations: 1,500 to 2,000 times 52.25% aglycanox chlorpyrifosyl cypermethrin electro-oil solution, 1,000 to 1,500 times 40% Leguo emulsion solution, 800 to 1,000 times 80% enemy emulsion solution, 800 times 25% urea suspension solution, 1,000 to 1,500 times 5% fish vine ketone gadolinium oil solution.
Control method: spray. Other control methods: remove eggs in time and kill the larvae.
15. Control of banana leaf mites (red spiders), the emergence of this disease will suck the sap of the leaves.
Recommended drugs and concentrations; 1,000 to 2,000 times 10% of the solution of vinycin, 200 to 300 times 0.2% of the emulsion solution of oxysteine, 1,500 to 2,000 times 15% of the solution of tachymolone emulsion, 2,000 to 3, 3% of the gram mite emulsion solution, 1,500 to 2,000 times 5% of the thiomethone emulsion solution.
Control method: Spraying is performed when the leaves show symptoms of damage and there are live insects on the leaves. Other control methods: strengthen management and increase the application of organic fertilizers to strengthen the cleaning work in the park.
Second, agricultural prevention of banana pests and diseases
1. Select excellent varieties with strong adaptability and strong resistance to diseases and insects.
2. Implement a rotation system.
3. Strengthen the management of soil, fertilizer and water, especially the addition of organic fertilizers to enhance the vitality of trees and improve the resistance of trees to diseases and pests.
4. Control the growth of weeds to reduce the source of diseases and pests.
5. Timely remove the plants with flower and leaf heart rot, bunch top disease and blight disease in the jiaoyuan, and remove the diseased leaves to maintain the hygiene of the banana garden.
Third, the physical and mechanical control of banana diseases and insect pests
1. Use trap lights to trap pests that are active at night.
2. Use fruit bagging technology to prevent diseases and insect pests from directly harming the fruit spikes.
Biological control of banana pests and diseases
1. Give priority to the use of biopesticides from microbial and plant sources.
2. Use small insecticides that are fatal to natural enemies such as predatory mites, mite-eating ladybirds, etc.
3. Protect or artificially release predators that prey on mites, aphid ants, etc.
Fifth, the chemical control of banana pests and diseases
1. It is recommended to use insecticides of plant origin, insecticides and fungicides of microbial origin, insect growth regulators, insecticides and fungicides of mineral origin, and chemical pesticides with low toxicity and low residue. Limit the use of toxic chemical pesticides.
2. Do not use pesticides that have not been registered and approved by the relevant state departments.
3. In banana production, in order to avoid the resistance of disease pathogens, it is recommended to alternately and rationally use different types of pesticides.