Aphids categories: Fact Sheet Houseplant Pests revision date: 2025-12-11 11:57 AphidsPhoto by: E. Klostermeyer Biology Aphids are small (1/16″ to 1/8″), soft-bodied, sap-sucking insects. Depending on species, their color can vary from green to yellowish to rose-colored or black. Some species may appear powdery or woolly. Adults are winged, but usually most of the infestation […]
Fungus gnats categories: Fact Sheet Houseplant Pests revision date: 2025-12-22 03:55 Dark winged fungus gnatPhoto by: Ken Gray Biology Fungus gnats are tiny, dark, slender flies about 1/8” long which commonly infest the soil and roots of houseplants. Adult fungus gnats are mainly a nuisance, flying around plants and running on the soil and other […]
Mealybugs categories: Fact Sheet Houseplant Pests revision date: 2025-12-30 03:28 Mealybugs on ColeusPhoto by: unknown Biology Several species of mealybugs can attack houseplants. Mealybugs get their name from the white, powdery or cottony wax which covers their grayish to pinkish bodies. This cottony material is often the earliest sign of an infestation to be noticed. […]
Scale insects categories: Fact Sheet Houseplant Pests revision date: 2025-12-31 03:39 Lecanium scalePhoto by: R.S. Byther Biology Several species of scale insects may infest indoor plants. They are quite small, usually ranging from 1/16″ to 1/8″ in diameter. The scale is actually a hard shell which protects the female insect and eggs from physical and […]
Spider mites categories: Fact Sheet Houseplant Pests revision date: 2026-01-22 01:24 Spider mitesPhoto by: unknown Biology Spider mites are common pests of indoor plants, thriving in the warm, dry conditions found in most homes. Each tiny eight-legged, spider-like mite is about the size of a period and can best be seen with magnification. The two-spotted […]