Reason: the pothos is suitable for overwintering in the environment above 15 ℃. If it is lower than this temperature, it is easy to be frostbitten, resulting in black spots.
Solution: move the pothos to a warm place in time. However, if the indoor and outdoor temperature difference is too large, it is not suitable to put it directly into the room to avoid further damage. If the room temperature is not enough, a plastic bag can be used for heat preservation.
Cause: strong light will cause damage to the leaves of Chloranthus, making it appear black spots.
Solution: shade the pothos. At noon, when the sun is more toxic, it is best to put it in the half shade to avoid exposure to light. Can be in the early morning or evening moderate light, light time should not be too long
Cause: the pothos needs to grow in a well ventilated environment, so there is enough oxygen to make it breathe, hypoxia will appear black spots
Solution: to create a good ventilation environment for the pineapple and ensure the air circulation. At the same time, if it is too dry, you can spray water properly to make the air moist, which is good for its growth.
Cause: leaf spot is one of the common diseases of pothos. The diseased leaves will show black spots.
Solution: cut off the diseased branches and leaves first, and burn them to avoid the spread of germs. In addition, we also need to spray mancozeb diluent to effectively prevent secondary recurrence.