Reasons for White Spots on Rubber Plant Leaves and How to Fix Them

1. Watering

It is itself drought-tolerant but not waterlogging-tolerant, and it is very afraid of standing water. Once it is watered too much and standing water forms, it will rot its roots and prevent it from properly absorbing nutrients from the soil. In addition, if the water temperature is too low, it can easily freeze and damage its roots, causing it to be unable to absorb nutrients. All of the above situations can cause white spots to appear on its leaves.

Solution: Reasonably control the amount of watering; it must not be too much. In addition, when watering, you also need to pay attention that the water temperature is not too low, so as to avoid freezing and damaging its root system.

2. Ventilation

This is also an important factor. If it is insufficient, it may prevent it from carrying out physiological reactions normally, causing it to fail to grow properly and white spots to appear on the leaves.

Solution: Usually pay attention to ventilation, but note that in winter it must not be placed in an air-conditioned room.

3. Pests and Diseases

This is the most likely cause. After contracting some diseases, such as anthracnose, its leaves may develop white spots. It generally occurs at the leaf tips or leaf edges, and if it is more severe, the entire leaf surface may be affected.

Solution: Once it is confirmed to be diseased, we need to remove the ones that have grown white spots, and then spray commonly used chemicals such as carbendazim. If it is scale insects, such a big effort is not needed. Generally, they appear arranged on the branches, and if we press them with our fingers, they will produce liquid. At this time, we can directly scrape them off, because this pest will die if it leaves the plant, so we only need to clean it thoroughly. In addition, we can also directly buy some insecticides, which are generally available on the market. If there are white marks on the leaves after applying the chemical, do not rush to wipe them off, because this is the residual chemical, and letting it remain for a period of time will make the effect better.