What to do with the rose peanut red spider
Rose is one of the three treasures of the garden, and red spider pests are a common problem that troubles flower friends. This tiny pest lives on leaf juice. In severe cases, it will cause the leaves to yellowing and fall off, directly affecting plant photosynthesis and flowering quality. This article will systematically explain the complete solution for the prevention and control of rose red spider from environmental regulation to drug management. Environmental control, pest prevention, scientific ventilation management, closed environment is a hotbed for red spider outbreaks. It is recommended to open windows for ventilation for more than 2 hours every morning and evening. The diagonal window method is used to form air convection, and the effect is better when used with a circulating fan. Rose maintained on the terrace should avoid placing the plants too densely and maintain a spacing of more than 30cm. Humidity control skills Red spiders are prevented from reproducing when the humidity is above 70%. Local humidity can be increased through leaf spray in the morning and evening. It is recommended to use an atomizing spray can, focusing on the back of the blades, and cooperate with the tray water accumulation method to keep the environment moist. Monitoring needs to be strengthened during high temperature periods in summer. When the temperature exceeds 30℃, the back of the leaves should be inspected every 3 days. The biological control plan for comprehensive physical and chemical management introduces natural enemies such as predatory mites for biological control. Release at a ratio of 1:50 can effectively control the population density. In conjunction with hanging a yellow insect stick board, set it 15cm away from the top of the plant, and replace it monthly to monitor insect pest dynamics. The scientific medication guide selects new acaricides such as pyridaben and azifenil, and pays attention to the alternating use of agents with different mechanisms of action. It is recommended to use a backpack electric sprayer and adopt a "Z"-shaped spray path to ensure uniform application of medicine on both sides of the leaf surface. Focus on treating old leaves in the middle and lower parts, and avoid rain within 48 hours after application. Post-pest maintenance management promptly clean up fallen leaves and burn them. After pruning severely damaged branches, use healing cream to protect the incision. Supplementing water-soluble fertilizers containing humic acid to promote the germination of new leaves, and spraying brassinolide once a week to improve stress resistance. Establish a pest and disease log to record each control measure and effect.
Through a three-dimensional prevention and control system of environmental regulation, physical control and scientific medication, combined with regular leaf back inspections, the harm of rose red spider can be effectively controlled. It is recommended that flower lovers carry out preventive spraying every month to keep the plants growing vigorously and allow the roses to continue to bloom brightly.