Fungus Gnat Fungus gnats are small flies that are a nuisance but do not feed as adults. The small larvae feed on decaying organic matter in the growing medium. Do not keep the growing medium excessively wet. Apply an approved pesticide. Mealy Bug Cottony white secretions along stems and under leaves.
Flat insects move, though slowly.
Wash off insects and secretions with clean, warn water. Spray with an approved pesticide. Thrive in dry climates, generally on flowering plants and annuals. Wash off the tiny wingless larvae. Adult whitefly controlled with spray of an approved pesticide.