What are the diseases and control methods of bananas?

What are the diseases and control methods of bananas? Please introduce the diseases of banana and their control methods as follows: bunchy top disease: banana bunchy top disease is a serious banana virus disease in the world. the typical symptom is that some dark green stripes appear on the back of the diseased leaf along the lateral vein and the base of the petiole or main vein, commonly known as green veins, the leaf is upright and narrow, hard and brittle and easy to break, the edge of the leaf obviously turns green, and then becomes scorched. The new leaves become smaller and smaller, and the plants are dwarfed. The diseased plants generally grow slowly, dwarf, and do not bud and hang fruit; if the bud and fruit of the diseased plant are deformed and small, the taste is light and has no economic value. Control methods: ① selected ventilated garden, adopted reasonable planting mode and density, strengthened fertilizer and water management, created an environment that was not conducive to aphid breeding, and improved the disease resistance of banana plants. ② was planted with disease-free tissue culture seedlings or bud-sucking seedlings from disease-free banana orchards. The provenance used for tissue culture should be cultivated in an insect-proof net or sucked buds from the mother plant of a disease-free banana orchard, preferably red bamboo shoots growing from April to June. ③ destroys banana cross-vein aphid vector ④ found that the diseased plant should be dug up after the banana aphid was killed by fountain medicine, or 8-10 ml of glyphosate was injected into the center of the pseudostem of the diseased plant 20-30 cm above the ground, plus 1-2 ml internal insecticide (and kill aphids on the plant). If you want to replant, remove the diseased soil and fill it with nearby new soil, add 3% carbofuran 50-100 grams and mix well before planting. Banana plantations with serious disease must be rotated with rice and other crops before bananas can be replanted. Mosaic heart rot and stripe disease, Panama disease, leaf spot disease, scab, nematode disease, nematode disease and so on. Control methods: ① land fallow or rotation with sugarcane, rice and other crops (more than one year) can greatly reduce the number of soil pests. After root cutting and surface cracking tissue, ② seedlings were exposed to sunlight and then treated with 5350C hot water for 20 minutes, which could kill almost all nematodes on malicious corms. ③ was treated with nematicidal drugs, such as carbofuran and clenbuterol, with 2 grams of active ingredient per plant, once every 2 to 3 months. ④ explores biological control methods, such as Australia's exquisite experiment, in which rape seedlings are pushed deep into a banana garden to kill nematodes. Click to get more banana planting techniques click to get more fruit planting techniques