Disease and Pest Control of Dendrobium chrysotoxum

1. Black spot

When it is infected with this disease, small dark brown spots will begin to appear on its young leaves, and then the spots will be surrounded by yellow and slowly spread to the leaves. In severe cases, black spots will form patches on the leaves, and finally the leaves will begin to wither and fall off. This disease usually begins to occur in early summer, so we must take timely prevention and treatment measures. Generally, we use some special drugs to spray to prevent and control its development.

2. Soil pollution

At the beginning, it will cover the surface of the entire plant's leaves with a layer of powdery substance similar to soot, which will seriously affect the photosynthesis of the leaves and stop the growth of the plant. Generally, the main period of occurrence of this disease is from March to May. At this time, we will find some carbendazim and make a certain mixture, and then spray it 1 to 2 times, which can kill them very well. Get a fundamental solution.

3. Philippine shield scale

This pest mainly parasitizes on the edges or backs of the leaves of Dendrobium chrysotoxum to suck its juice, which will cause the leaves of the plant to begin to wither. In severe cases, the entire plant will die. At the same time, it can also cause new coal pollution diseases. At this time, we must take preventive measures in advance. This pest starts to lay eggs in late May. At this time, we can use some dimethoate emulsifiable concentrate to spray and kill them, and the effect is very good. There are also some that have become shield shells but are few in number. You can cut off their old branches and leaves, and then put them together and burn them to achieve complete prevention and control.

4. Snail

It mainly hides on the back of leaves to eat the flesh or bites the stems to damage the petals. This pest can occur many times a year. Once it occurs, the damage is very serious. Often the entire plant can be eaten up in one night. Then we can put some poison baits in places where they often move to kill them. In addition, it is also a good idea to sprinkle some medicines in the surrounding environment of cultivation for prevention and control.