Cause: too strong summer sunshine without any shelter, on the sun plants, serious when the withered.
Solution: change the pot position of the plant, avoid contacting with strong light, or block it with something, so as to alleviate the stimulation of sunlight.
Causes: the plants grow in dark environment for a long time, and the leaves can't touch the normal sunlight, so they can't maintain the growth. The leaves of the whole plant will turn yellow and fall off.
Solution: put it in the place where you can touch the sunshine, supplement the light to alleviate it
Causes: usually too much water will lead to root rot, nutrients can not be supplied, leaves will naturally fall off.
Solution: if the situation is not serious, stop watering or change the watering to water spraying after discovery. If the situation is very serious, you need to prune the rotten roots
Cause: the plant did not apply water for a long time, and could not get the normal needs.
Solution: according to the growth of plants, appropriate application of water