What if the leaves of camellias are scorched?

What if the leaves of camellias are scorched? What caused it? how to prevent and cure it? Camellia is one of the most famous flowers in China. It has been loved by people for thousands of years because of its graceful tree appearance, evergreen seasons, graceful flowers, delicate colors and long flowering period. The habit of camellias, the requirements for light, is to like semi-shade, avoid the scorching sun. When cultivated in Shanghai and the middle and lower reaches of the Yangtze River, hot sun exposure should be prevented in summer and autumn, especially for some valuable camellias from Yunnan, such as Crown, Huabaozhu and Rocks of Eighteen Scholars. Otherwise, it is easy to develop white burn disease of leaves, that is, irregular scorched patches of different sizes, just like the problem described in the letter. So there was no such problem a few years ago, but why did it happen in the same place, in the same summer this year? In this regard, I think: one of the reasons is that the hot and scorching sun in Shanghai came earlier than usual this summer. The newly growing new leaves have not yet completely aged, but they are suddenly exposed to strong sunlight, which can no longer stand, so there are burnt patches. Another reason may have been affected by changes in the environment. For example, in the past, there were other trees on the top of the slope, and the camellias were in a semi-shady environment in summer. The trees planted next to the camellias this year have been pruned, thus reducing or losing the shading conditions in the hot summer, which aggravates or increases the burns on the leaves of the camellias, resulting in more scorched patches. What about the burned and withered leaves? It is impossible for it to change from dry to green. If it is still left on the tea tree, it will affect the overall appreciation value, the only way is to gradually cut off the dead leaves in batches with the passage of time, combined with tree pruning. Click to get more camellia planting techniques click to get more flowers and trees planting techniques