(1) the specific reason: "powdery mildew" is one of the great threats to this plant. This is a fungal disease. At the time of onset, there are some small spots at first. Then, it will gradually develop into a white mold layer, which will be powdery. It looks like the leaves are turning white. In general, the lower leaves are more likely to develop disease than the upper ones, and the back leaves are more likely to develop disease than the front ones. If so, then probably infected with this disease
(2) solution: first, cut off the diseased leaves and deal with them properly. After that, clean up the surrounding environment and disinfect it. Then, spray some medicine to cure the disease, such as Carbendazim and other liquid medicine. After the maintenance of the main attention is moisture, not too much, and the best from the basin side. In addition, ventilation is also very important.
(1) specific reason: there is a kind of insect, called "sponge scale". It's white. If this kind of insect is born, its leaves will look white.
(2) solution: it is similar to the treatment of disease, and the diseased leaves are removed. Then spray, such as Omethoate. In addition, we can use biological methods, such as introducing and releasing some ladybugs.
(1) specific reasons: sometimes, after a long time of sun exposure, some leaves are sunburned. Then, it is possible that the leaves may turn white.
(2) solution: it's better to put it in a place with astigmatism, and do not expose it to the sun. At the same time, pay attention to ventilation.
