Identification of Diseases of Edible Fungi and Control methods of rotten Shoots of Orchid

In order to prevent the leaf buds of orchids from rotting, we must first find out the cause before we can prescribe the right medicine.

First, the reason why the leaf bud is rotten:

1. Because too much Rain Water made Rain Water enter the center of the leaf, when spraying fertilizer, the liquid fertilizer and water was inadvertently poured into the center of the leaf, coupled with poor air circulation, insufficient light, low temperature and accumulated in the center of the leaf for a long time, resulting in the rot of the leaf bud.

2. External causes and mechanical damage, accidental injury in the management process of ramet damage, spraying fertilizer, pruning old leaves, flowers, transportation and so on.

3. The orchid itself has germs, the new leaf tissue is young, the disease resistance is poor, easy to suffer from a variety of bacterial or fungal diseases, not timely control, resulting in new buds rotten, serious can lead to the death of the whole plant.

2. Preventive measures:

Careful and scientific management, such as watering and fertilization, the fertilizer concentration should be appropriate, not too high, gently turn the water from the edge of the basin with a water spoon, and should not be directly sprayed with faucets to prevent soil and sewage from splashing to the center of the leaves. Spray with a fine sprinkler, the droplets should not be too large, spray from the back of the leaves, it is appropriate for the leaves to be completely wet without dripping. Strengthen ventilation and take measures to protect against rain in the rainy season. The time of spraying water should be mastered so that it can be volatilized before evening. In the process of fertilizing, pruning leaves, changing pots and transportation, we should be careful and operate carefully to avoid damage as much as possible.

For diseases, pests, viruses, etc., first of all, strict quarantine should be carried out when purchasing people to prevent diseased orchid plants from mixing with orchid nurseries; and pay attention to the environmental hygiene work around the orchid nursery, timely removal of diseased leaves, failure and concentrated destruction; regular spraying of insecticides and fungicides to do a good job of prevention and prevention; proper fertilization, not immature organic fertilizer; moderate concentration of inorganic fertilizer, less nitrogen fertilizer, more phosphorus and potassium fertilizer to enhance the disease resistance of orchid plants. Before planting, the orchid plants were thoroughly disinfected and sterilized, the laws of the occurrence of diseases and insect pests were mastered, the monitoring and prevention were strengthened, and the diseased plants were isolated and treated in time.