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Check Your Houseplants for Whiteflies

One of the easiest houseplant insect pests to recognize is the whitefly. These sap feeders are not really flies - they just look like it. Actually, I think they look more like tiny white moths, but they are the size of gnats, about 1/16 inch long. You might notice them sitting on the underside of an infested leaf, usually the youngest leaves. More likely you will notice the tiny adults when they flutter off the leaf as you water or handle the plant. They are easily disturbed but fly only a short distance before they quickly return to the leaf