← Pest Organisms

Year Round Indoor / season

26 entr(ies)

American Cockroach
A large, reddish-brown cockroach that lives mostly in warm, damp places like sewers, drains, and basements, wandering indoors in search of food, water, or shelter from harsh weather.
Argentine Ant
A tiny dull-brown invasive ant that forms enormous multi-queen "supercolonies" and follows long indoor trails to sweets and water, especially when the weather turns wet or hot and dry.
Bed Bug
A small, flat, reddish-brown blood-feeding insect that hides in beds, furniture, and cracks near where people sleep and feeds on human blood at night.
Brown Dog Tick
A reddish-brown three-host tick that strongly prefers dogs as its host and is unusual in being able to complete its entire life cycle indoors, infesting homes and kennels.
Brown Recluse
A shy, venomous brown spider of the south-central United States, known for six eyes in three pairs and a violin-shaped mark, whose bite can occasionally cause a slow-healing skin wound.
Brown-banded Cockroach
A small indoor cockroach that favors warm, dry, elevated spots throughout a building, named for the pale bands across its wings and abdomen.
Cat Flea
A tiny, wingless, blood-feeding insect that is the flea most often found on pet cats and dogs in U.S. homes, biting both animals and people and breeding in carpets, bedding, and pet resting areas.
Cigarette Beetle
A tiny, humpbacked, reddish-brown beetle that infests a wide range of dried stored goods, from spices and pet food to tobacco, tunneling through the product as a larva and flying toward light as an adult.
Drain Fly
A small, fuzzy moth-like fly whose larvae develop in the organic film inside drains, sewers, and standing water; the adult is a harmless nuisance and the larva is a beneficial decomposer.
Drugstore Beetle
A tiny, humpbacked reddish-brown beetle that infests stored dry foods, spices, and even non-food goods, with larvae tunneling through the substrate to feed on almost anything dry in a pantry, kitchen, or warehouse.
Fruit Fly
A tiny tan-to-brown fly with red eyes that breeds in overripe, fermenting, or damaged fruit and the moist residue in drains, found around kitchen counters and trash.
German Cockroach
A small indoor cockroach found worldwide in association with humans, living near food, water, and warmth in kitchens, bathrooms, restaurants, and food-storage areas.
House Centipede
A fast, long-legged centipede with a dirty-yellow striped body that lives in damp, dark corners of homes and hunts insects and spiders at night; alarming to look at but harmless, and actually a beneficial predator.
House Cricket
A light yellowish-brown cricket with three dark bands across its head that lives outdoors in warm weather and moves into buildings when it turns cool, best known for the male's chirping and for being raised as fishing bait and pet food.
House Mouse
A small, gray-brown commensal rodent that lives in close association with people, nesting in walls, appliances, and stored goods, and known for droppings, gnaw marks, and a musky odor.
Indianmeal Moth
A small, two-tone moth whose caterpillars infest stored dry foods such as grain products, cereal, dried fruit, nuts, pet food, and birdseed, leaving telltale silk webbing behind in the package.
Little Black Ant
A tiny, shiny jet-black ant native to North America that nests in soil and inside structures, follows visible foraging trails indoors, and turns up in kitchens and pantries hunting for food and a little moisture.
Pavement Ant
A small dark-brown to black ant that nests in soil along cracks in sidewalks, driveways, and foundations and wanders indoors after crumbs, sweets, and grease.
Pharaoh Ant
A tiny pale-yellow to reddish-brown ant that nests in warm, hidden voids inside heated buildings, forms sprawling multi-queen colonies, and is both the hardest household ant to control and a documented contamination concern in hospitals.
Powderpost Beetle
A small reddish-brown wood-boring beetle whose larvae feed on the starch in hardwood sapwood, leaving round pinhole exits and a fine, flour-like powder that gives the group its name.
Red Flour Beetle
A tiny, shiny reddish-brown beetle that infests flour, cereal, and other dried, finely ground foods in pantries, mills, and warehouses, contaminating far more than it eats.
Rice Weevil
A tiny reddish-brown snout beetle whose grubs develop hidden inside whole grain kernels, making it one of the most damaging pests of stored grain, flour, birdseed, and pantry staples worldwide.
Sawtoothed Grain Beetle
A tiny, very flat brown beetle with saw-like teeth along the sides of its thorax that infests stored cereals, pasta, dried fruit, and other pantry foods in homes, groceries, and grain stores worldwide.
Silverfish
A small, wingless, silver-gray insect with a teardrop shape and three tail-like bristles that lives in cool or damp indoor spaces and feeds on paper, starch, and other carbohydrate-rich materials.
Striped Bark Scorpion
A slender, yellowish-tan scorpion marked with two broad dark stripes down the back and a dark triangle on the head, common across the south-central U.S., that climbs well and often turns up in attics and living areas of homes.
Western Drywood Termite
A wood-nesting termite of the western U.S. that lives entirely inside dry, sound wood — framing, furniture, dead tree limbs — without any contact with soil, betraying itself mainly by piles of tiny six-sided fecal pellets.