What you'll see: Webbing on foliage and stems, distorted yellow foliage; tiny, light-colored arachnids.
Management: Heavily infested plants should be thrown out. The most effective controls include washing and increasing humidity around the plant. Small plants can be repeatedly washed with a jet of water from a shower or kitchen sprayer to force off mites and eggs. Bifenthrin, found in many houseplant insecticides, can also be effective for spider mite control.