Most of the white spots on the leaves of sweet potato are caused by the hardening of water quality, which is inorganic salt. Note that during the management period, it is not necessary to water it frequently, and the soil should be slightly wetted. It also has a certain ability of drought resistance. If it is frequently watered or the water quality is hard, it will lead to this phenomenon. However, there are different concerns. Just control the amount of water, and this phenomenon can be cured. In addition, let it more sun, light enough growth will be better.
