Since pests may be hidden or in the egg stage, it often takes more than one treatment to eliminate them. With a severe infestation, it may be best to discard the plant along with its soil. If the plant is valuable, a pesticide may be necessary. Be sure to read and follow all label directions and precautions before use. Common houseplant pests include aphids, mealybugs and mites, among others.
Aphids are small insects.
They are usually green but may be pink, brown, black or yellow. They are usually found on new growth. They suck plant sap, resulting in yellowing and misshapen leaves. Growth may be stunted and new buds deformed. As they feed they excrete a sugary material, called honeydew, which makes leaves sticky.