What symptom does succulent plant black rot have? What caused it? How should it be treated?

Black rot mostly occurs in summer. Now, many of my friends' succulent plants have begun to have black rot. What symptoms does black rot have and what causes it? If you want to spend a hot summer, how should you be treated? Take a look at the materials compiled by the editor for you.

1. Symptoms of black rot

If the succulent plant suffers from black rot, the leaves will blacken and rot as shown in the picture.

two。 The cause of succulent black rot

First of all, we need to understand why it is black rot. Many meat lovers think that water is the main cause of black rot. In fact, water is one of the important causes of black rot, but it is not an absolute cause. Black rot is caused by harmful bacteria in soil or particles that harm plants and begin to multiply in large numbers under high temperature and humidity.

Some people compare black rot to cancer, early treatment, amputation in the middle, and good food and drink in the late stage. In fact, it is more like a plague, the development of cancer takes time, and black rot, under the necessary conditions, sucks in a day. Succulent black rot is caused by Fusarium oxysporum, a facultative parasitic fungus that can infect plants and survive in soil. Like other plant pathogens, there is subspecific differentiation, which can infect many plant hosts. It is not unique to succulent plants. In fact, it is related to the wilt of more than 100 species of plants, such as melons, Solanaceae, bananas, cotton, legumes and flowers. A search on the Internet shows that Fusarium oxysporum even leads to the crisis of banana extinction.

3. Measures to prevent succulent black rot

⑴ can spray carbendazim and other drugs several times before summer to reduce harmful bacteria in the soil.

Putting more particles in the ⑵ soil can make more fresh air in the basin (harmful bacteria are usually anaerobic)

⑶ should be placed in the vent as far as possible. If not, an electric fan can be used instead.

If the ⑷ is dry, it will be dry, and if it is watered, it will be thoroughly watered. This dryness should be controlled well, you can work for four or five days, but it is best not to take too long, otherwise it will damage the root system. I like to pour water directly with a sprinkler, and water it for a little longer, because clean water can also wash away some harmful substances. Don't be exposed to the sun immediately after watering, it's best to dry and ventilate for a day. So that the moisture in the soil is not too wet.