How to control banana coal sheath disease with oval brown mildew

The disease spot of banana coal stripe disease mostly appears in the leaf edge, which is short oval, brown, and the pattern is obvious. The disease spot is dark and mildew on the back of banana leaves, which is spread by wind and rain. The prevention and control methods of banana coal sheath disease are as follows:

Banana coal sheath disease

1. Strengthen cultivation management, rational fertilization, pay attention to the non-partial application of nitrogen fertilizer, but should increase the application of potassium fertilizer; reasonable drainage and irrigation, timely elimination of stagnant water in banana garden, so as to make banana trees grow strong and improve disease resistance of banana trees.

two。 Timely cut off the diseased and withered leaves on the banana tree, cut down the weeds in the banana garden, clean up the diseased and residual leaves in the garden and burn them centrally, so as to make the garden ventilated and transparent, and reduce the chance of pathogen transmission.

3. Spray control. The disease is mainly chemical control, spraying at the initial stage of the disease, every 10-15 days, 2-3 times in a row. The effective agents are: 25% Tilt EC 1000-1500 times, 50% bacteria flexible wettable powder 800 times, or 0.1% 0.5% methamphetamine emulsion and so on. In order to increase the solution attached to the leaves and banana fruit and improve the control effect, 0.1% 0.2% washing powder or 0.4% flour and cassava powder should be added to the solution.