Banana disease and its control

The main diseases are beam top disease: Banana bunchy tops are called banana, banana and banana, and it is a worldwide severe banana virus disease. Typical symptoms are the depth of the back of the diseased leaf along the lateral veins and petioles or the base of the main vein. Green stripes, commonly known as blue veins, are more erect and narrow, hard and brittle, and visibly chlorotic on the edge of the leaves. After the new leaves become dwarfed, the new leaves become smaller and the plants dwarf. Diseased plants generally grow slowly, dwarfing, not budding and bearing fruit; if buds emerge when the diseased plants extract the buds and the resulting fruit is deformed small, tasteless and economical. Control methods: 1 Select a ventilated garden, adopt reasonable planting methods and density, strengthen fertilizer and water management, create an environment that is not conducive to locust breeding, and increase the resistance of banana plants to disease. 2 Using disease-free tissue culture seedlings or disease-free banana gardens for the cultivation of sucker seedlings. For the seed source of tissue culture, it is necessary to use an insect-proof net room for cultivation or to take a sucker from a mother plant of a disease-free garden, preferably a shoot of red shoots growing from April to June. 3 Elimination of banana cross-vein transmission media 4 The diseased plants should be extirpated immediately after the fountain drug kills the arachis, or 8-10 ml of 10% glyphosate solution should be injected into the center of the false stem 20-30 cm above the ground. Add 1-2 ml of systemic insecticide (also kill aphids on the plant). If you want to replant, you must fill in the soil around the disease hole and fill it with a new soil. Add 3% carbofuran 50-100g and mix it before planting. The banana garden, which is seriously affected, must be planted with rice and other crops before it can be grown.
Mosaic heart rot and streak disease, Panama disease, leaf spot disease, black spot disease, nematode disease, nematode disease and so on.
Control methods: 1 Land fallow or crop rotation with sugarcane, rice and other crops (more than one year) can greatly reduce the number of soil insect population. 2 Suckling sprouts roots, surface cracking tissue, after sun exposure and then treated with 53 ~ 550C hot water for 20 minutes, you can kill almost all nematodes on the malicious bulbs. 3 application of nematicidal drugs, such as soil Furan Dan, grams of Ling, etc., each plant effective ingredient 2 to 3 grams, applied every 2 to 3 months. 4 Exploring methods for prevention and control of biological agents, such as Australia's exquisite test with rape seedlings deep pressed into the plantation to kill nematodes.

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