Mites feed on plant leaves and stems, leading to extensive damage or plant death if left untreated. They usually are brought inside when you purchase an infected plant. Then they quickly spread to other houseplants in the home. Infected houseplants have speckling on the leaves caused by the damage from the mites' feeding. Mites may also leave a cobweb-like substance on the underside of the leaves. Getting rid of mites on houseplants is imperative to keep the plants healthy.
Inspect plants for infected leaves. Trim leaves from the plant that are heavily speckled or are affected by the mites' webbing. Dispose of the infected leaves in the garbage.
Set the plant pot inside a plastic bag. Gather the opening of the bag around the stem of the plant so that the pot and soil are completely contained inside the bag.
Fill a large bucket with lukewarm water. While holding the plastic bag closed around the stem of the plant, submerge the entire plant in the water to rinse the dust and any mites from the leaves.
Rinse plants in the lukewarm water weekly when combating the mite infestation. Alternately, wash each leaf of the plant individually with a cloth dampened with warm water.
Wash plants with an insecticidal or miticidal soap if infestation is severe or if washing isn't controlling the problem. Follow package application instructions and recommended amounts for the particular brand when applying the insecticide.