Medal Flower Diseases and Pests and Their Control
As a dazzling star plant in the courtyard, the medal flower is deeply loved by gardening enthusiasts for its unique flower shape and brilliant colors. However, during the planting process, problems with diseases and pests often catch flower lovers off guard. This article will systematically analyze the common characteristics of diseases and pests in medal flowers and provide scientific control solutions to help you create a healthy and lush floral environment.
Three Major Disease Control Guidelines for Medal Flowers
Leaf Spot Disease: Techniques to Prevent the Leaf Killer
Leaf spot disease is the most easily infected leaf disease in medal flowers, initially manifested as yellow-brown spots on the leaves, which later expand into irregular patches. It is recommended to adopt a three-level protection system: ① Maintain a plant spacing of more than 30cm for daily ventilation; ② Preventively spray with a 25% multi菌灵 1000-fold liquid every month; ③ When the disease occurs, switch to an 800-fold liquid for enhanced treatment, and trimming the diseased leaves can increase the cure rate by 80%.
Grey Mold Disease: Nemesis of High-Humidity Environments
Particular attention should be paid to the prevention and control of grey mold disease during the plum rain season, as this disease causes brown water stains on the petals. In addition to using 70% methyl thiophanate, it is recommended to set up rain shelters to reduce humidity and perform foliar misting in the early morning instead of direct watering.
Comprehensive Pest Management Plan for Medal Flowers
Aphids: Three-Dimensional Control Network
Aphid control requires the establishment of a dual physical and chemical defense line: ① Hang yellow sticky traps to monitor pest density; ② Use capsicum water (200g of fresh peppers mixed with 1L of water) for biological control when pest numbers are low; ③ During outbreaks, select systemic insecticides and focus on spraying the back of young shoots.
Spider Mites: Prioritize Environmental Regulation
High temperatures and dry conditions can trigger spider mites. It is recommended: ① Regularly rinse the back of leaves; ② Plant companion plants such as mint that repel pests; ③ Use plant-derived pesticides like matrine, which are eco-friendly and avoid resistance.
Black and Red Mites: New Control Techniques
For black and red mites with piercing-sucking mouthparts, it is recommended to use pyrethroid microcapsule formulations, which have a sustained-release property that can extend the efficacy for up to 20 days, and combined with blue board trapping can reduce chemical pesticide use by 60%.
By establishing a plant protection system that focuses on prevention and prioritizes biological control, combined with a regular rotation of pesticides, the diseases and pests of medal flowers can be effectively controlled. It is recommended to conduct monthly growth inspections, keep maintenance logs, and adjust control plans according to regional climatic characteristics to keep the medal flowers continuously blooming with dazzling brilliance.