You can't have water in the basin. If you don't do it or water it, you can water it in about two or three days, depending on the situation. Keep the basin soil moist at ordinary times. Don't do it or water it to prevent water from accumulating in the basin. May to June. That is, the flower bud differentiation and formation period. To "withhold water", let the soil dry until the old leaves are slightly curled, and then water it when the new buds shrink. Repeat this several times, destroy the growth point of new branches, stop elongation, increase flower bud development, and then resume normal watering.

Knowledge expansion: ebony is more resistant to pests and diseases, and its ability to resist root cancer and not be harmed by nematodes is precious. Plums tend to live longer, which is related to their less destructive pests and diseases. But there are also several rare diseases and insect pests, such as powdery mildew, anthracnose, perforation and plaster disease; Gummosis; The longicorn beetles are mainly red-necked longicorn beetles, aphids, scale insects, moths, caterpillars, Noctuidae, dead leaf moths, leaf curl moths, apple caterpillars and other pests. Therefore, we should pay attention not to plant too densely, do a good job of ventilation and drainage, and strengthen daily tending management. After the occurrence of pests and diseases, we must cure them in time. In drug control, we should pay attention to prevent dimethoate from spraying on plums, otherwise it will easily cause side effects such as early defoliation.