Symptoms and Control Methods of Orchid Leaf Disease
This article introduces the symptoms and control methods of orchid leaf disease in the aspect of green plants and flowers. Keep reading!
Symptoms and Control Methods of Orchid Leaf Disease
The symptoms of orchid leaf disease include discontinuous streaks on parts of the leaves, often presenting a mottled mosaic pattern, leaves becoming smaller, and a bumpy surface. The virus is usually transmitted through sap, aphids, and mechanical contact. During cultivation, it is important to ventilate and avoid high temperatures and humidity. Spraying Bordeaux mixture, methytobuzin solution, and other agents once a week for 2-3 consecutive weeks is effective.
Symptoms of Orchid Leaf Disease
The symptoms include discontinuous streaks on parts of the leaves, often in a mottled mosaic pattern, leaves becoming smaller and curved, and a bumpy surface.
Harm caused by orchid leaf disease
Plants with orchid leaf disease become stunted, produce fewer flowers, and the color is lighter, and leaves may even wither, severely reducing ornamental value.
Causes of orchid leaf disease
The virus causing mosaic disease is usually transmitted through sap, aphids, and mechanical contact, mainly due to the contact of healthy plants with water and tools that have been in contact with diseased plants, which can lead to virus transmission.
Medication for Orchid Leaf Disease
When infected with mosaic disease, leaves will gradually show light yellow spots. If not treated promptly, leaves will gradually necrotize. It is necessary to ventilate properly during cultivation to avoid high temperatures and humidity. Spraying Bordeaux mixture, methytobuzin solution, and other agents once a week for 2-3 consecutive weeks is sufficient.
Control Methods for Orchid Leaf Disease
Methods for dealing with mosaic disease
1. Diseased plants should be promptly cleared and incinerated, and pots, peat, gravel, and other media in the affected area should be disinfected at high temperatures.
2. When dividing roots or repotting, hands and tools should be disinfected after handling each plant. Soap or a 2% formalin solution and a 2% sodium hydroxide solution can be used.
3. During the orchid management process, minimize leaf damage to prevent virus transmission, and promptly eliminate aphids. A 40% dimethoate solution diluted 1500 times can be used.
Preventive measures for mosaic disease
Preventing orchid leaf disease involves ensuring proper ventilation in the greenhouse, avoiding high temperatures and humidity, ensuring proper drainage, appropriately applying phosphorus and potassium fertilizers to enhance the plant's virus resistance, promptly removing diseased leaves, fruits, and residual plants to increase photosynthesis and protect the healthy growth of the plant.
The above is the complete content on the symptoms and control methods of orchid leaf disease. Have green plant enthusiasts understood this?