1. The foliage dries up and flies around. If the room is colder than 12 degrees or warmer than 27 degrees, then wrinkling, drying, and flying around of the leaf plates are observed. It can also happen due to overdrying of an earthen coma.
2. Leaves wither. If liquid stagnates regularly in the substrate, this can cause the appearance of sluggish foliage, after a while, it will turn black and fly around, while the shoots will become soft.
3. The leaves turn pale. Overly intense lighting can cause foliage to become faded, lethargic, and slightly transparent. At the same time, its edge dries and turns brown. Due to excessively poor lighting, the edge of the leaf plates will also brown and dry out, while they themselves lose their spectacular color, and young leaves grow small, the stems become elongated.
4. Spots on the leaves. As a result of exposure of the bush to direct rays of the sun, sunburns that look like yellow spots can form on the foliage, and over time they become brown.
5. Flies around the foliage. If only the lower leaf plates fly around, then this is quite normal and is associated with the aging of the plant. In this case, it is recommended to cut several cuttings from the bush and grow a young plant from them.
6. Harmful insects. Thrips, mealybugs, spider mites, and scale insects can settle on Pilea.