The important diseases of bananas are shrinking disease, mosaic heart rot, and leaf spot disease. The former two are viral diseases that are transmitted by ticks. 1. Dystrophy, also known as beam top disease, banana, shrimp, banana stems, symptoms are green veins, the new leaves more and more fine, stretch, constitute the top of the bush, can not be effect. Invented diseased plants should be excavated and destroyed in real time, and lime be disinfected at the diseased site. 2. The symptoms of mosaic heart rot are white or yellow streaks with long or short leaves, narrow or wide leaves, and mosaics with the green sector, sometimes with diamond spots. Slender or cross-cutting of the pseudo-stem of the diseased plant showed that the leaf sheath was disintegrated and eroded. The dead heart died and the heart rot showed signs. Prevention and control the following: (1) Strict quarantine, restraining transfer of banana seedlings from the ward. (2) Invented strains should be removed in real time. (3) Remove the growth condition of the orchard or the control of the aphids. 3. Leaf spot There are several kinds of leaf spot disease in bananas, rare and it causes extensive and severe brown spot disease. The disease finally occurred with red-brown small strips parallel to the veins, distributed in the appearance of the leaves, the size of the lesions (5 ~ 100.1 ~ 1) mm, then the stripe expansion, black, to the middle, the stripes extended and oval, brown There are yellow halos around, dark brown in the early stage, and gray in the center. The lesions form a leaf withered for a long time. The disease was caused by a fungus, and the spores of the bacteria passed down through the wind and rain. Diseases have a close relationship with the weather. Your temperature is at 25°C and your absolute humidity is above 95%. Prevention and control the following: (1) Note that the diseased leaves are often cut off and destroyed. (2) Strengthen planting management, improve plant resistance to disease, and change field conditions. (3) spraying control. For each spraying in April, May and June of each year, 70% thiophanate wettable powder 1000 times, or 75% chlorothalonil wettable powder 800 times, or 25% carbendazim wettability can be used. Powder 400 to 500 times, or Wei Wei 400 times. Can also participate in mineral oil or laundry detergent, etc., to increase adhesion. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone Neomycin Sulphate Tulle Dressing Neomycin Sulphate Tulle Dressing,Neomycin Sulfate Gauze Dressing,Framycetin Gauze Dressing,Neomycin Sulfate Tulle Dressing Roosin Medical Co.,Ltd , https://www.roosinmedical.com