Disease and Pest Control of Dendrobium officinale

1. Black spot

When the disease occurs, black spots will first appear on the young leaves with a little yellow around them, and then they will slowly begin to spread to the leaves. Sometimes, in severe cases, the black spots will form flakes, causing greater damage to the leaves and causing them to wither and fall off.

Prevention and control methods: Generally, the disease will begin to appear in early summer. Then we need to use some methods to prevent it. The most commonly used method is to choose some appropriate pesticides for spraying, which can achieve good results.

2. Anthrax

This disease first harms its leaves and tender stems, causing them to easily develop small black spots, which usually occur from January to May.

Prevention and control methods: If you want a good prevention and control method, you can usually just spray it with medicine. It takes at least 2 to 3 times to achieve the ideal effect.

3. Vector-borne diseases

This disease is also one of the main diseases. It usually exists on the leaves of the entire plant, causing the leaves to be covered with a dark powdery substance, which prevents the leaves from metabolizing and causes the plant's growth to stagnate.

Prevention and control methods: Generally, dilute and mix the carbendazim, and then spray it 1 to 2 times with a spray.

4. Philippine shield scale

It mainly lives on the edges of the leaves or on the back of the leaves of the plant. Then they start to continuously suck the juice from the plant, which causes the plant to lack nutrients and eventually prevent it from growing normally or even die.

Prevention and control methods: This pest usually reproduces in late May, so we should use some special pesticides to spray it at this time, the effect will be better. However, if the amount is small, you can burn its old branches and leaves in a concentrated manner, which is also a good method.

5. Snail

This is also a common pest on plants. It usually hides secretly on the back of leaves and then nibbles them, sometimes the stems are also damaged. The worst thing is that it can happen many times within a year and is very harmful.

Prevention and control methods: We can place some baits for hunting, or we can sprinkle some quicklime around the planting areas.