Rose leaves have white spots on them. It may be because the place where they are raised is too humid and not ventilated enough. In such an environment, it is easy to breed pathogens, infect plants, and cause powdery mildew, leaf spot and other diseases. After the disease, its leaf will appear obvious white spot or white powder.
1. Pruning: when it is found that it is ill, a pair of scissors shall be prepared first, and all leaves with white spots shall be cut off. If there are already dry branches, they need to be cut together. After that, take it out of the original flowerpot, remove the flower soil stained on the root system, and cut off the rotten or black rot roots.
2. Disinfect and replant: after cutting, apply some bactericide to all the cuts to prevent it from infecting bacteria. Then, some new flower soil was made from saprophytic soil, fine sand and vegetable garden soil, and planted in it. In this way, the residual bacteria in the old soil can be prevented from infecting the plants again. After that, put it in a well ventilated and warm place and spray the fungicide every 3-5 days. It will be back soon
