Latest Disease Prevention and Control Methods for Home Orchid Growing

How to prevent and control diseases of household potted orchids? The author believes the following measures can be taken:

Strengthen cultivation. Orchids need an environment with good ventilation and air permeability, smooth drainage, and moderate light. Taking household potted orchids as an example, the orchid pot chosen should have a large space at the bottom, good air permeability, and no water accumulation; the soil for growing orchids is best made by mixing pond mud with roasted soil, slightly acidic; when the orchid plant is moved into the pot, it should be placed in a well-ventilated place with moderate light, to reduce and prevent the occurrence of orchid diseases. When watering orchids, water control should be carried out differently according to the seasons, so as to keep the soil in the orchid pot slightly moist, but water accumulation should be avoided.

Choose good varieties to reduce sources of infection. There are many orchid varieties, and their disease resistance varies greatly. Choosing good varieties and cultivating strong seedlings to reduce the spread of disease sources is an effective way to prevent and control orchid diseases.

Fertilize reasonably and supplement nutrients in a timely manner. Fertilization of household potted orchids should follow the principle of "better to lack than to overdo, better to be dilute than to be concentrated," and an appropriate time should be chosen for fertilization. When fertilizing orchids, avoid both insufficient fertilization and excessive fertilization.

Promptly remove diseased leaves and diseased plants, and combine prevention with treatment. Whenever orchid leaves are found to have leaf spot diseases such as black spot, anthracnose, and southern blight, they should be promptly cut off and burned or deeply buried. If any rotting orchid plants are found, they should also be removed and disposed of. In addition, every 10 days, spray the orchid leaves with an equal-amount Bordeaux mixture or pesticides such as Miebingwei and carbendazim, or with water infused from plant ash, spraying continuously 2 to 3 times, which has a good effect on preventing orchid diseases.