Common pests and diseases of Alocasia and the latest control methods

Alocasia is a very elegant plant. Although it is itself toxic, some people still like it and grow it. In the process of growing it, you will always encounter some unavoidable pests and diseases. So below, Shuashuai will tell everyone about the pests and diseases of Alocasia!

1. Diseases

1. Leaf spot disease

Leaf spot disease is a condition that can make leaves turn yellow and withered. After it infects Alocasia, it will cause some yellow spots to grow on the leaves of Alocasia. Faced with this condition, we can use chlorothalonil or carbendazim to spray the diseased leaves. Spraying two or three times in a row is enough, once a week.

2. Anthracnose

Anthracnose is a rather scary disease. Once it infects the leaves, it will make the leaves turn black and yellow, and then carbonize. This disease is caused by anthracnose bacteria. It can be sprayed with thiophanate-methyl solution, once a week, and spraying two or three times can relieve it.

3. Wilt disease

Wilt disease mainly harms its stems. This wilt disease is not very easy to detect, and the symptoms are not especially obvious. Moreover, once it is discovered, it is already at an advanced stage. As long as you find that a branch is leaning to one side, then it is definitely wilt disease. At this time, we can use a small knife to cut off the diseased part, then spray the not-yet-infected part with chlorothalonil solution, spraying once every ten days, and after twenty days it can recover.

2. Pests

The most common pest of Alocasia is the red spider mite. Red spider mites not only suck the sap of the leaves but also transmit the viruses they carry to the plant, harming the plant. Therefore, observe more often in normal times. Once found, spray and kill them on the spot. Acaricides such as mite clear or saomangjing can all be used for control.

The above are the common pests and diseases of Alocasia and how to control them. Have you all learned it? To learn more related information, please continue to follow Qinnong Web!