Something heavy hits the porch light
That clumsy thump against a fixture on a humid night is nearly always this roach. It flies badly and it flies toward light, so entry doors and carport lights are the places sightings cluster.
The one everyone here calls a palmetto bug
Palmetto Bugs and American Cockroaches in Conway
Year-round on the coast, heaviest May through October and after heavy rain
The quick answer
Ask anyone in Horry County about palmetto bugs and this is usually the insect they mean. American cockroaches are large reddish brown roaches that live outdoors in sewers, storm drains, mulch and leaf litter, then wander in through a worn door sweep or a crawl space vent. The population is outside, so the work is a perimeter and moisture job.
Diagnosis
Spotting the problem early
These are the things homeowners spot before they call.
One in the tub before breakfast
They follow plumbing and drain lines and cannot climb back up smooth porcelain, so a tub or sink becomes a trap. It points at a wet wall void or an open drain line rather than anything you keep in the bathroom.
Live roaches at a crawl space vent
The vent screen is the boundary between their habitat and yours. Finding them clustered on the block or the screen itself means the crawl space is part of the harborage and the treatment has to include it.
Blunt dark droppings on the garage floor
Roughly the size of a grain of rice with ridged sides and blunt ends, often gathered in corners or behind stored bins. Rodent droppings taper to a point at each end, which is the quickest way to separate the two.
A surge two days after a downpour
Heavy rain floods drains and saturated mulch, and the colony moves up and out. A quiet house that suddenly produces three sightings in a week has usually had its ground water pushed around, not its housekeeping change.
What is drawing them to your property
Conway sits on the coastal plain where the water table is high and the ground under everything stays damp. Storm drains, sewer lines and the ditches that carry runoff after a thunderstorm hold exactly the warm standing water this roach breeds in, and the mulch beds, pine straw and palmetto clumps around most yards give it daytime cover within a few feet of the foundation. None of that is inside your house, which is the whole point of how it gets treated.
Getting in is easy in local construction. A vented crawl space is a humid open room with gaps around every pipe and duct penetration, and homes on piers along the Waccamaw and out toward Bucksport sit low with plenty of route in. Add a garage door with a flattened bottom seal, a screen door propped open on a warm October evening, and irrigation heads throwing water at the slab, and one wandering roach a week starts to feel normal.
Palmetto bugs travel the same routes Conway's roaches do, riding delivery pallets and moving lawn to lawn wherever mulch beds stay damp. That pattern holds down SC-544 through Socastee, where the older neighborhoods near the Intracoastal Waterway see the same big, winged visitors after a warm rain, and out toward Surfside Beach, where the oceanfront cottage grid backs up against ditches that never fully drain between storms.
Palmetto bugs travel light along drainage lines, and Conway's downtown blocks near the Waccamaw riverfront give them exactly that kind of cover between sewer access points and old storm drains. The same holds farther out: homes along the US-501 corridor near Homewood back up to central Horry County pine woods, where fallen bark and needle litter hold moisture long after the rain stops, and a call for help there gets the same licensed pros we connect you with that Conway itself does.
We deal with this across Conway and the surrounding towns, Myrtle Beach, Carolina Forest and Socastee included.
Know what you are looking at
- Size
- Among the largest roaches found in local homes, adults commonly 1 1/2 to 2 inches
- Color
- Reddish brown with a pale yellowish figure eight pattern on the shield behind the head
- Flight
- Fully winged and capable of clumsy gliding flight, which is how they reach porch lights
- Outdoor home
- Storm drains, sewer lines, mulch, pine straw, palmetto clumps and crawl spaces
- Active
- After dark, moving fast along baseboards and disappearing under appliances
- Season
- Year-round on the coast, heaviest May through October and after heavy rain
- Typical treatment
- an estimated $99–$289
What it gets mistaken for
Smokybrown cockroaches. Look at the shield behind the head under a decent light. An American cockroach carries a pale border and a lighter figure eight marking on that shield, so it reads as two tone. A smokybrown is one flat mahogany color from head to wing tip with no pale edge at all, and it is usually the slightly smaller of the two. Where you caught it is the other tell: ground level and near a drain points to American, dropping out of a soffit or a gutter points to smokybrown.
What happens when someone comes out
Because the source is outdoors, the treatment reads more like drainage work than kitchen work. An inspection walks the full perimeter looking at mulch depth against the siding, downspout discharge, irrigation overspray, the gap under the garage door, weep holes, utility penetrations and every crawl space vent, then goes under the house to check the vapor barrier, standing water and any plumbing sweating onto a joist. What comes out of that is a list of harborage and a list of openings, and both get named rather than hinted at.
Product follows the inspection instead of leading it. That usually means a granular bait through mulch beds and along the drip line, a targeted exterior band and crack treatment at the places they actually cross, and dust or bait placements into the crawl space and wall voids where they shelter. Inside, monitors go behind appliances and under sinks to confirm nothing is breeding indoors. Recurring visits matter here more than a single call, because the outdoor population regenerates through nine warm months and the point of the plan is to keep the pressure off the wall.
The split with american cockroaches is simple enough: something contained gets treated once, while pressure arriving from outside every season is what cover is for. There is no winter here that resets it.
| Your case | What we would advise |
|---|---|
| Something contained, in one part of the property | Treat it once |
| Pressure off the yard or the marsh, year after year | Recurring visits |
| Something living in the crawl space, a void or the attic | Treatment with exclusion work |
The homeowner side of this
Most of the useful work is not chemical. Pull mulch and pine straw back to a bare strip against the foundation, get downspouts discharging away from the wall, fit a new bottom seal on the garage door, replace a worn threshold sweep, screen the weep holes, and repair torn crawl space vent screens. Fixing a dripping hose bib or a sweating supply line removes the water they need. Where DIY stalls is the crawl space and the drain lines, because retail sprays applied to a baseboard never touch the place the roaches are living, and a fogger in a kitchen does nothing at all to an insect that came in from the storm drain.
The health side, honestly
Worth taking seriously without panic. These roaches travel across sewer surfaces, drain lines and trash, and they carry bacteria mechanically on their legs and bodies onto counters, plates and pantry shelves. Their droppings and shed skins also break down into household dust that can aggravate asthma and allergy symptoms. Practical response: wash any surface one has crossed, keep dry goods in sealed containers rather than open boxes, do not sweep dry droppings in a garage or crawl space, and wet the area with a disinfectant before cleaning it up.
Before you ring round
Work on american cockroaches generally falls in an estimated $99 to $289 band. How long it has been going on decides most of the rest. Nobody charges you for the looking, and the figure is written down before a technician starts. Every band, and what pushes it up, sits on the pricing guide, and the service covering it is Cockroach & Palmetto Bug Control.
Next up
Other things living under local floors
German Cockroaches
The only one that breeds indoors. Of the three roaches common around Conway, this is the one that will not sort itself out.
Carpenter Ants
Follows the water, not the wood. Carpenter ants do not eat wood, they hollow it out to live in, and they overwhelmingly choose wood that has already been wet.
Powderpost Beetles
A humidity reading with legs. Small round holes in floor framing with a dusting of powder beneath them are the calling card of these beetles.
Questions & Answers
Frequently Asked Questions
Is a palmetto bug the same thing as a cockroach?
Yes. Palmetto bug is a regional nickname rather than a species, and along this stretch of coast it gets used for the two big outdoor roaches, the American and the smokybrown. Neither name changes the treatment much, but knowing which one you have does change where the work happens, since one comes in at ground level and the other comes in from the roof line.
Does seeing one mean my house is infested?
Not necessarily, and that is a genuine difference from the small kitchen roach. These live outside and wander in, so a single insect in a hallway in August can be one insect. What tells you something more is happening is repetition in the same room, droppings, or sightings during daylight. An inspection sorts a wanderer from a breeding population quickly by looking at the crawl space and the perimeter rather than the kitchen.
Why do they get worse after it rains?
Rain floods the drains, ditches and saturated mulch they shelter in, and the colony moves to higher, drier ground. Your foundation, crawl space and garage are that higher ground. It is also why a treatment plan on this coast is built around recurring visits through the wet months instead of one visit in spring.
Will sealing the house be enough on its own?
It does more than most people expect and it is not usually enough by itself. Sealing removes the easy routes, but a large outdoor population sitting in mulch against the wall will keep testing every gap, and older homes on piers rarely seal completely. The combination that works is reducing the harborage outside, treating where they cross, and closing the openings you can reach.
Get Started Today
Want it confirmed before you spend anything?
Ring us and describe it. We will tell you what it most likely is and what dealing with it involves, before any money is discussed.
Call (843) 896-1048