Category
Tell pests apart by their droppings, damage and where you find them, starting with mouse vs. rat, so you choose the right traps and the right plan.
Cockroaches
A baby cockroach is a wingless nymph, 1/8 to 9/16 inch, usually dark with a pale stripe down its back. It usually means roaches are breeding indoors. Confirm with $10–20 of sticky traps, then bait.
Mice & rats
Mostly, yes: house mice peak after dusk and again before dawn, and rats come out at dusk. Set traps before dark and check them each morning. What a daytime sighting means.
Cockroaches
Cockroach poop is pepper-like specks from small roaches or ¼-inch dark pellets with flat ends and ridges from big ones. Wipe it up with hot soapy water, then set sticky traps to see if roaches are still active.
Mice & rats
Often, but not always: one mouse can wander in alone. Fresh droppings, flour-patch tracks and 12–24 snap traps (about $14–27) show how many you really have.
Clothes moths & pantry moths
Pantry moths are about twice as long, gray and copper, and fly around the kitchen. Clothes moths are tiny, plain gold and hide near wool. Each lure attracts only its own kind, so buy one $10 pack of the right trap.
Cockroaches
Pepper-like droppings, egg cases, shed skins, a strong odor and roaches out in daylight. One adult on a sticky trap usually means a newcomer; nymphs of several sizes mean an established infestation.
Cockroaches
Most "water bugs" in a house are oriental or American cockroaches from drains and damp basements. A true water bug lives in ponds, has pincer-like front legs and tiny antennae, and doesn’t breed indoors.
Mice & rats
Mice sound like light scratching, scurrying and gnawing in walls and ceilings at night, with the odd high squeak. Rats are louder. Confirm with droppings, then trap nearby.
Mice & rats
Rarely. A house mouse stays within about 30 feet of its nest, breeds year-round indoors, and cold drives it in, not out. Trapping plus sealing runs about $57–71 in supplies.
Cockroaches
Roaches smell musty and oily, from droppings and secretions, and you usually notice it only in a large infestation. Trace it with $10 of sticky traps, then bait and scrub.
Cockroaches
A wood roach is a native outdoor roach, ¾ to 1 inch, with pale edges behind the head. It can’t breed indoors and dies within days, so pick it up and toss it. No spray or exterminator needed.
Flies & gnats
House gnats don’t bite. The biting “gnats” are outdoor flies: biting midges at dawn and dusk, black flies by day. Long sleeves, a fan and a $6.99 repellent stop most bites.
