Generally, the newly purchased pothos has an adaptation period of about one month to the new environment, and the yellow leaf at the bottom is normal. However, remember that the yellow leaf or dead leaf should not be peeled off directly and cut from the middle of the petiole so as to avoid excessive water loss and increase wound caused by direct peeling, so that the upper leaf will be yellow.
It likes the environment of high temperature, wet and half overcast. It can't bear the cold. The overwintering temperature is no less than 10 ℃. It is sensitive to temperature, avoid direct sunlight in summer, and leaves are easy to wither and fall off under strong light. In winter, it can grow well under the bright scattering light in the room, and the water requirement is higher during the growth period.
It may also be that there are bacteria in the water for hydroponics. If it is aquaculture in tap water, it may be due to the high content of bleaching powder in the water. The pineapple itself is not resistant to low temperature, long-term low temperature and large water will lead to rotten roots, resulting in insufficient water supply to the roots, and finally the root leaves start to turn yellow, and the top leaves lose luster.
It should be placed in a place with sufficient scattered light, and often spray water on the leaf surface during growth. Spraying 0.2% of potassium dihydrogen phosphate can make the mottling on the leaves return to gorgeous. Use a larger (water surface) culture vessel as much as possible, and fill the water with oxygen if possible.
It's OK to spray 1% urea. Every living thing has a life cycle. It may be aging. It's all natural. Only when it's withered and yellow, it will produce new leaves. There's no need to worry about it.
Another is to change the water once a week in hydroponics. If it is possible to put some Maifanshi or small stones, it will effectively reduce the occurrence of yellow leaves. When changing water, wash the root well and cut off the diseased root. Don't put too much water. It's ok if there's no root. It is recommended to use cloth to wrap the roots, soil and sawdust in the water.
