What should I do if the rainbow jade grows black insects?
As a star variety in the meat world, Hongzhiyu's crystal clear leaves are often put down. However, recently, many flower lovers have reported that black insects frequently appear around the plants. These uninvited guests not only affect the ornamental value, but also endanger the health of the plants. This article will systematically analyze the Hongzhiyu pest response plan from root causes to prevention and control. Analysis of the causes of the rainbow jade black insects caused by environmental imbalance. Research by horticultural experts has found that when the temperature of the maintenance environment continues to be higher than 28 ° C and the air humidity exceeds 70%, combined with the combined conditions of poor ventilation and insufficient light, it is a breeding ground for small black insects. The scientific name of this type of pest is mushroom mosquitoes. The larvae will chew the roots of plants, while the adults carry the bacteria through the basin soil. The three-way environmental control method for the prevention and control of black insects immediately moves the plants to a transparent environment in the north and south, and maintains direct light for more than 4 hours a day. By cutting off water for 3 days, the humidity of the basin soil is reduced to below 40%, and using a small circulating fan to enhance air flow, this method can kill more than 85% of adults and eggs. The physical interception scheme hangs yellow sticky insect boards within 10cm around the flowerpot to trap insects by taking advantage of the yellowing characteristics of insects. It is recommended to use a double-sided adhesive board with a size of 15×20cm, and layout 4 pieces in the shape of "Tian", which can improve the capture efficiency by 60%. Chemical prevention and control Note that when pests break out, 2000 times of imidacloprid can be used to spray it with emamectin salt on the leaves. Cover the shade for 3 days after application. Remember that the drug should be used at 7 days intervals and no more than 3 consecutive times to avoid drug resistance. The long-term preventive management mechanism recommends using bamboo vinegar 200 times a month to irrigate roots, which can not only adjust the pH of the soil, but also form an insect barrier. When changing pots in spring and autumn, mixing 5% diatomite can effectively prevent egg hatching. Insect repellent plants such as mint and basil can be placed daily to form ecological protection.
Through the triple guarantees of environmental regulation, physical control and pharmaceutical assistance, combined with daily preventive measures, existing pests can not only be eradicated, but also a healthy growth defense line for Hongzhiyu can be built. Don't delay discovering pests. Only by dealing with them in time can you protect your beloved fleshy baby.