Reason: the demand of pothos for fertilizer is not big, too much fertilizer or too thick fertilizer is easy to cause root damage, so that the new leaf top is black
Solution: if the fertilization time is long, stop the fertilization temporarily to observe whether there is a more serious situation. If there are still new leaves blackened, you need to take out the plants, wash them with water, and replant them with soil.
Cause: the low temperature causes the plant to be frozen, causes its root to absorb water disadvantageously, causes the leaf to blacken.
Solution: the requirement of temperature is high, and it should be kept above 15 ℃ in winter. When the indoor temperature is not enough, you can use a plastic bag for insulation, but remember to take a period of time every day to ventilate.
Reason: Green pineapple itself likes shade, long time light is easy to cause leaf blackening, especially in summer to avoid strong sunlight.
Solution: place the potted plant in the place with astigmatism, and the strong light in summer needs to be properly shaded. However, due to the difference between the north and the south, the North Green pineapple needs a long time of illumination in autumn and winter, which is good for improving temperature and photosynthesis.
Cause: the air is too dry, leading to increased transpiration, water loss after the leaves black.
Solution: spray water on the blades and the surrounding ground to improve the air humidity. At the same time, when the temperature is too high, it can also cool down, which also helps to reduce the impact of transpiration.
