Rose Dendrobium Disease and Pest Control
As a star variety among orchid plants, Rose Dendrobium is favored by horticulture enthusiasts for its elegant flower posture. However, in the actual care process, diseases and pests often become key factors hindering the healthy growth of the plant. This article provides a systematic prevention and control plan for common diseases and pests to help you cultivate high-quality plants with shiny leaves and flourishing flowers.
Rose Dendrobium Disease Control System
Black Spot Disease Prevention and Control Points
This disease has typical seasonal characteristics, with a high incidence period from March to May requiring key protection. Initial symptoms are pinhead-sized brown spots on the leaf surface, which can expand to circular black spots 2-3mm in diameter as the condition progresses, and in severe cases, multiple lesions merge, causing the entire leaf to wither.
Three steps for prevention and control: 1. Timely removal of infected leaves and collection using sealed bags. 2. Alternately spray 50% carbendazim 800 times solution and 75% chlorothalonil 1000 times solution every week. 3. Strengthen environmental ventilation, maintaining air humidity at 60-70%.
Comprehensive Management of Sooty Mold Disease
This disease often occurs with piercing-sucking insects such as aphids and scale insects. The black mold layer not only hinders photosynthesis but also easily causes secondary infections. It is recommended to combine biological and chemical controls:
• Hang yellow sticky insect boards to monitor insect density. • Use 25% azoxystrobin suspension agent 1500 times solution for foliar spraying. • Regularly clean the deposited matter on the leaf surface with a soft bristle brush.
Rose Dendrobium Pest Solution
Strategy for灭杀 of Feidun Scale Insect
The hatching peak period of this insect in late May is a key prevention and control window. It is recommended to use 40% chlorpyrifos emulsifiable concentrate 2000 times solution for key backleaf spraying. For adult insects that have formed a waxy layer, mineral oil emulsifiers can be used in combination to enhance the penetration of the pesticide.
Cultivation Precautions: • New plants should be isolated and observed for 15 days. • Conduct special inspections of the leaf axils every month. • Maintain a plant spacing of more than 30cm.
By establishing a plant protection system that focuses on prevention and supplemented by control, along with scientific temperature and humidity control (daytime 25-28°C/nighttime 18-20°C), the incidence of diseases and pests in Rose Dendrobium can be effectively reduced. It is recommended to establish a care log, recording the time of each application and the plant's response, gradually forming an individualized prevention and control plan.