How to solve the blackening of Gardenia leaves

Speaking of gardenia, we should be very familiar with it. There is a song called gardenia blooming. Gardenia looks very good-looking, and people also like it very much. Gardenia is generally white, smelling its own fragrance, and it makes people feel very comfortable. But the gardenia raised by some flower friends has turned black. Why? Let's tell you why.

First, the reason why the leaves turn black

1. Overwatering

If it is caused by the problem of too much watering, then it is necessary to observe more at ordinary times. We can't see the surface of the stagnant water at the bottom of the basin, so flower friends usually have to turn the soil irregularly to check whether the plant has rotten roots. If there is, it means that it is too much watering, so as soon as it is found that the leaves are black, we should immediately check the rotten roots.

2. Root injury

The root is the most important part of the plant to absorb nutrients, so if the root is invaded by some germs, it will not be able to absorb nutrients, so the leaves will blacken, especially if they are overwatered at this time, it will cause infection in the injured roots, resulting in the entire plant nutrients can not be transported, making the leaves black.

3. Insect pests

Usually pay more attention to the leaves and branches, because pests will seriously affect the growth of the plant, once found that there are eggs on the plant, it is very likely that aphids and shell insects damaged the leaves, if there are no insects and eggs, it is suffering from tea coal disease.

Second, the solution to blackening leaves.

1. First of all, we have to judge whether the flowers like gardenia are overwatered. If flowers like gardenia are not dry, they should be watered thoroughly. Every time we water them, we should also look at the weather conditions and the humidity of the ambient air. If it is a rainy day or the humidity of the air is relatively high, we should relatively less water.

2. If diseases and insect pests are found, buy corresponding insecticides, or make insecticides by yourself to kill insects. If insects or eggs are found on the spot, they can be wiped off with wet towels or rags. If you make your own, you can use garlic, alcohol and soapy water.

The above are the reasons and solutions for the blackening of gardenia leaves. Gardenia blackening is mainly caused by watering and diseases and insect pests, so careful flower friends usually have to observe more plants, especially those caused by rotten roots to turn the soil from time to time to see if they have rotten roots.