Measures to prevent black or transparent eggs from appearing on plant leaves;
Increase light. Generally, potted plants are placed in a bright and ventilated place on the balcony, which can be properly shaded in summer and fully illuminated in other seasons. Dark light is easy to grow white, and plants are not suitable for growth.
During the vigorous growth period of plants, the internal ventilation is poor, which is easy to breed pests and bacteria. Generally, spraying pesticides once a month can prevent pests.
In the growing season of plants, attention should be paid to pruning, cutting off the back branches, overgrown branches and internal cross branches, and increasing light transmission and ventilation to prevent the occurrence of pests.
Watering plants in time when they are dry and often spraying water on leaves to increase humidity can also prevent pests.