Delaware Pest Watch · OctoberStink bugs and boxelder bugs are on sunny walls, mice and spiders are moving indoors, and adult deer ticks are at peak. See this month’s worst bugs →The Bug Guy 302-242-5254 · Mosquito & Pest Authority 302-346-2970

Home / New Castle County / Elsmere

New Castle County

Pest control in Elsmere, Delaware

A compact town just west of Wilmington that grew up as the city’s first suburb.

Identify a bugGet a free quote in Elsmere

What Elsmere homeowners deal with

  • Older homes have more gaps around pipes and foundations for mice and cockroaches to use as it cools off.
  • Older housing means more gaps for rodents and roaches, and stink bugs gather on sunny walls in September and October.
  • DNREC’s Mosquito Control Section watches ditches, stormwater ponds and wet woodlands statewide; empty buckets and other backyard containers weekly in summer.

What shapes pest pressure in Elsmere

The Delaware Public Archives says the land just beyond Wilmington’s western limits was a farm district of large estates in the early nineteenth century, and that by late in the century a real estate developer’s efforts had helped make it Wilmington’s first suburb. Elsmere was incorporated in 1909 and today has a mayor and town council. Census Bureau place centers put Newport about 2 miles away, downtown Wilmington about 3 miles away and New Castle about 5 miles away in a straight line. Most of Elsmere falls in ZIP Code Tabulation Area 19805, with the rest in 19804.

A suburb that began in the nineteenth century means many older houses, and older houses have more gaps around pipes, foundations and rooflines. That is where mice and cockroaches get in as the weather cools, and where stink bugs crowd sunny walls in the fall. Outdoors, DNREC says blacklegged ticks live in woody edges statewide and that ticks can be active year-round, and its Mosquito Control Section treats ditches, stormwater ponds and wet woodlands statewide, so emptying standing water around the house is the part you control.

Pest season in Elsmere

Spring
Ants move indoors and termite swarmers can appear on warm spring days. Ticks become active along wooded and grassy edges.
Summer
Mosquitoes breed in clogged gutters, buckets and other standing water, so empty containers weekly. Check for ticks after yard work.
Fall
Mice look for gaps as nights cool, and stink bugs gather on sunny walls in September and October.
Winter
Mice stay in walls and attics, and stink bugs that got in stay hidden. DNREC says ticks can be active year-round in Delaware.

Top pests in Elsmere

House mouse on a concrete floor
Mice & RatsHome

Move inside as nights cool. Droppings and gnawing are the first signs.

Peak: Oct – FebLocal pros availableGerman cockroach feeding on sugar
CockroachesHome

German roaches live indoors year-round; American roaches come in from outside.

Peak: Jun – SepLocal pros availableClose-up of a termite on wood
TermitesHome

Subterranean termites swarm in spring. A must-check before any home sale.

Peak: Mar – MayLocal pros availableBrown marmorated stink bug on a leaf
Stink BugsHome

Gather on sunny walls in fall and slip in around windows.

Peak: Sep – NovLocal pros availableClose-up of an ant on a leaf
AntsHome

Odorous house ants and carpenter ants lead spring kitchen calls.

Peak: Apr – JulLocal pros availableSouthern saltmarsh mosquito on a plant stem
MosquitoesYard

Salt marsh and backyard breeders. Worst near standing water and the coast.

Peak: Jun – AugLocal pros available

Sponsored partners serving Elsmere

Local pros who serve Elsmere

Nearby towns

NewportWilmingtonNew CastleAll of New Castle County

Elsmere pest questions

Why do mice show up in Elsmere homes as it gets cold?

Cooling nights push mice into walls, basements and attics, and older homes have more gaps for them to use. Seal gaps around pipes, doors and vents, store pet food and birdseed in sealed containers, and set snap traps along walls.

Which DNREC mosquito office serves Elsmere?

DNREC’s Mosquito Control Section serves New Castle County from its Northern Delaware Office in Glasgow. For nuisance mosquitoes or larger breeding sites such as ditches, stormwater ponds or wet woodlands, contact that office.

Are ticks a problem around here?

DNREC says blacklegged (deer) ticks are common in forested areas and woody edges statewide, longhorned ticks turn up in New Castle and Kent counties in spring and summer, and ticks can be active year-round. Check yourself, kids and pets after time outdoors.

Sources