Why are the leaves of camellia turning black?

1. Disease problem

(1) Specific reasons: This is one of the most likely reasons for the blackening. This plant is susceptible to a disease called anthracnose. Once infected, as the condition progresses, the leaves of the plant will begin to look increasingly burnt. In addition, the leaf fall will become more and more serious.

(2) Solution: If the problem is disease, then first we have to collect the blackened leaves and burn them together. In this way, the situation may be alleviated by eliminating the source of infection. Then, spray some medicine and the plant may slowly recover.

2. Pests

(1) Specific reasons: This is also a very common reason. Any plant that is attacked by pests may develop black leaves, and this plant is no exception. As the harm becomes more serious, the blackened area will become larger and larger. This way, water transport is inhibited and the leaves eventually dry out and fall.

(2) Solution: For this situation, the solution is similar to the first one. Treat the diseased leaves first, then spray the medicine.

3. Moisture problem

(1) Specific reasons: As mentioned above, there are two situations. One reason is that there is too much water, which causes a lack of oxygen in the roots, which later causes the leaves to turn black. The second situation is the quality of water, which may also cause the leaves to turn black.

(2) Solution: The corresponding measure for the first situation is naturally to reduce the amount of water and then add ventilation. For the second one, you can add some (FeSO4) solution into the water.

4. Fertilizer problem

(1) Specific reasons: There are two situations: one is too much quantity, and the other is too high concentration.

(2) Solution: For the two different situations mentioned above, the amount of fertilizer used at one time should not be too much and the concentration should be low. To put it simply, it can be summarized as "apply small amounts of fertilizer frequently."