Diseases and prevention methods of Molan

Sclerotium rotum

symptom

People also call it fungal disease. This disease often occurs in the rainy season and is more likely to occur in a humid environment. At first, white mycelium will appear on the leaves and the soil surface, causing the pseudobulbs to rot and the entire plant to die.

Prevention and treatment methods

Clean the contaminated soil promptly, remove the orchid from the pot promptly, check the pseudobulbs for rot, remove them promptly, and replant them after disinfection. As long as the pseudobulbs are not completely rotten, recovery is still possible. After planting, use pentachloronitrobenzene powder mixed with water to irrigate the roots.

Black spot of black orchid

symptom

Black spot disease is also called anthracnose. When the disease occurs, small brown spots will appear on the leaves, gradually increasing in size and turning into small black spots. It often occurs in hot and rainy seasons, mainly harming new shoots. In severe cases, the entire plant will die.

Prevention and treatment methods

If you find black spots on the leaves, cut off the diseased leaves or pull out the diseased plants in time.

Increase ventilation, reduce humidity, and just meet the basic humidity needs of Mo Lan.

Spray fungicides promptly after the disease occurs, once every half a month, for three consecutive times.

Mo orchid soft rot

symptom

During the growth of Mo Lan, the harm caused by soft rot is relatively serious. Once the disease occurs, the leaves become dehydrated and turn yellow, the plant wilts, and in severe cases the entire plant dies.

Prevention and treatment methods

The main approach to soft rot of Mo Lan is prevention. Pay special attention to the use of medication within 3 months after division, from April to August, and after heavy rain in summer. Apply medication every 15 days or so. Alternating the use of various agents will have better results.

Strengthen maintenance and disinfect various tools when planting orchid seedlings. Maintain good environmental hygiene to avoid the creation of man-made pathogens.