Spider mite webbing on houseplants suggests humidity levels are too low.

Spider mite webbing on houseplants suggests humidity levels are too low.

Mist the affected foliage and take steps to increase air moisture. A humidifier works well. Grouping plants together will also raise humidity levels. In addition, you can place pots on trays filled with gravel or river stones and water. The plants must sit above the water line and will still need watering.