Pest Control Guide - Spiders in Indiana, Kentucky, & Illinois
Spiders are the largest group of arachnids. There are more than 35,000 named species worldwide, including about 3,000 in North America. These predators live almost everywhere - on the ground, under rocks, inside and underneath playground equipment, among grasses, on plants, in tree branches, in underground caves and even on the water. The most common types in people's homes are:
BLACK WIDOW SPIDER
Description
- Black Widow spiders females are about ½” in body length and about 1 ½” in total length.

- The adult female is shiny black with a red hourglass on the rounded abdomen.
- Juvenile females may have red spots or stripes as well as the hourglass.
- Males are dingy white with brown markings and faded hourglass.
- Black widow spiders nest in voids or cavities and construct a thick irregular shaped web.
- Black widow spider bites contain a neurotoxin that shuts down the respiratory system.
- Black widows get their name from the phenomenon that the female will try to consumer her mate after breeding.
- She is successful only about 20% of the time.
Control
- Treat the exterior perimeter of the home.
- Treat the interior perimeter of areas such as storage units and garage as these are likely nesting locations.
- Direct ULV fogging in areas where black widows are observed will contact kill adult spiders.
- Use insect sticky traps in areas conducive to pest activity
- Exclusion can help prevent them from gaining entry
- Inspect your property often and look for signs of nesting.
CELLAR SPIDER
Description
- Cellar Spiders vary in size but can get up to 1 ½” in length with their legs extended.
- Cellar spiders are small bodied spiders that are usually not seen unless you are looking for them.
- Cellar spiders build a thick dirty web that they continue to work on their entire lives.
- Cellar spiders are common in warehouses, garages and crawlspaces. They can be found in homes behind furniture or at the wall ceiling juncture.
- Cellar spiders are commonly referred to as the daddy long-leg spider because of their long slender legs.
Control
- Cellar spider control can be achieved by constantly disturbing the nested spider.
- Vacuuming or sweeping the nests will cause stress on the spider and eventually kill it.
- Insecticide treatments to likely cellar spider web locations will prevent the spiders from building webs and provide short term control.
BROWN RECLUSE SPIDER
Description
- Brown Recluse are about 1” in length
- Brown recluse are two tone brown with a darker “fiddle” shape behind the head (cephalothorax).
- Brown recluse have long narrow legs and a football shaped abdomen. With their legs extended they are about he size of a quarter.
- Brown recluse live the majority of their time hidden in secluded places.
- They can live up to two years
- Bites can cause necrosis (deterioration flesh and tissue) Bites have been know to even cause death which is extremely rare.
Control
- Interior Perimeter treatments of all rooms.
- Dusting of wall voids such as electrical outlets and light sockets.
- Treat storage areas such as closets basement and garages.
- Directive Treat drop ceiling areas and attic areas, garages and the living area of the home.
- Set sticky traps throughout the home to capture the spider all day everyday.
- Remove clutter and debris.
- Organize storage areas.
HOUSE SPIDER
Description
- House spider are about 3/16” to 5/16” in length.
- They have a dirty white abdomen with a few dark spots.
- They construct webs in garages, crawlspaces, attics and under furniture.
- It is the most common spider indoors but creates no health risk with its bite.
Control
- Removing the web of a house spider is the most effect control method.
- Either vacuum or sweep the web to remove it
- Treat the area where house spider are likely to build with a liquid insecticide to prevent further activity.
- Common areas include basements, attics, garages, crawlspaces and behind furniture.
WOLF SPIDER
Description
- Wolf spider vary greatly in size due to the numerous species.
- Wolf spiders are typically dark gray or brown but can vary in color also.
- Wolf spiders get their name from the fact that they hunt for food like a wolf.
- They are very furry spiders with all species having hair.
- They have dark markings on each side of the cephalothoraxes the hard plate behind the head.
Description
- Treat the exterior perimeter of the structure with a liquid insecticide.
- Treat interior areas such as basements and garages with a liquid insecticide.
- Treat crawlspaces by spraying all wall and floor with a liquid insecticide.
- Place monitors throughout to capture any further spiders that might enter the structure.
YELLOW SAC SPIDER
Description
- Yellow sac spiders are 1/8”-5/8” in length.
- They are yellow to yellowish green in appearance.
- Yellow sac spiders are a common biting spider that is more likely to bite than a brown recluse.
- They build a silken sac which they spend the majority of their time during the day and then leave the sac to hunt at night.
- They build these sac structures around crown molding or the wall ceiling juncture.
Control
- Treat the interior perimeter of all rooms with a liquid insecticide.
- Crack and crevice treat crown molding and/or the wall ceiling juncture in all rooms with an approved insecticide.
- Treat interior of garage including the wall ceiling juncture.
- Place out sticky traps to capture any further sac spider that enter the structure.
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Kentucky Service Area
Breckinridge County
Addision
Ammons
Axtel
Bewleyville
Cave Spring
Chenaultt
Clifton Mills
Cloverport
Corners
Custer
Dempster
Dyer
Fairfield
Fisher
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Garfield
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Hardinsburg
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Hensley
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Mooleyville
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Union Star
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Crittenden County
Crayne
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Mexico
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Tolu
View
Weston
Daviess County
Birk City
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Byp
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Maple Mount
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Oklahoma
Owensboro
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Philpot
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Scythia
Sorgho
Spice Knob
St. Joseph
Stanley
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Thruston
Tuck
Utica
West Louisville
Whitesville
Hancock County
Adair
Arrington Corner
Cabot
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Floral
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Patesville
Pellville
Petri
Reynolds Skillman
Station
Roseville
Victoria Crossroads Waitman
Henderson County
Anthoston
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Coraville
Corydon
Dixie
Euterpe
Finley Addition
Geneva
Graham Hill
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King Mills
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Reed
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Weaverton
White City
Wilson
Hopkins County
Anton
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Barnsley
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Dalton
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Manitou
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Nebo
Oak Hill
Olney
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Richland
Smith Ford
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Utley Ford
Vandetta
Veazey
West Side Heights
White Plains
Livingston County
Birdsville
Burna
Carrsville
Grand Rivers
Hampton
Heater
Joy
Ledbetter
Pickneyville
Salem
Smithland
Tiline
Vicksburg
McLean County
Beech Grove
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Buttonsberry
Calhoun
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Comer
Congleton
Elba
Glenville
Guffie
Island
Lemon
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Poverty
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Nuckols
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Ranger's Landing
Rumsey
Sacramento
Semiway
Wrightsburg
Wyman
Ohio County
Adaburg
Aetnaville
Beaver Dam
Beda
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Centertown
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Combs Ford
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Cromwell
Deanefield
Dundee
Echols
Equality
Ellmitch
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Fordsville
Hartford
Haynesville
Heflin
Herbert
Hites Falls
Horse Branch
Horton
Jingo
Ken Wye
Kirtley
McHenry
Magan
Matanzas
Mount Pleasant
Narrows
Nineteen
No Creek
Olaton
Point Pleasant
Prentiss
Renfrow
Rockport
Rosine
Sandefur Crossing
Scottown
Select
Shreve
Shultzton
Simmons
Sulfur Springs
Taffy
Taylor Mines
Union County
Arnold
Bordley
Boxville
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Cullen
Curlew
Dekoven
Flournoy
Givens
Grangertown
Grove Center
Hamner
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Henshaw
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Raleigh
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Yuba
Webster County
Blackford
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Clay
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Dixon
Elmwood
Little Zion
Onton
Providence
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Shelton
Stanhope
Tilden
Vanerburg
Virginia
West Wheatcroft
Wheatcroft
Williams
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Illinois Service Area
Clay County
Bible Grove
Blair
Flora
Harter
Hoosier
Hord
Iola
Larkinsburg
Louisville
Oskaloosa
Pixley
Sailor Springs
Songer
Stanford
Xenia
Edwards County
Albion
Bennington
Black
Bone Gap
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Ellery
Grayville
Maple Grove
Samsville
West Salem
Gallatin County
Derby
Equality
Junction
Kedron
New Haven
Old Shawneetown
Omaha
Ridgway
Shawneetown
Hamilton County
Aden
Belle Prairie City
Blairsville
Braden
Broughton
Bungay
Dahlgren
Dale
Delafield
Diamond City
Flint
Garrison
Hoodville
Lovilla
Macedonia
McLeansboro
Olga
Piopolis
Thackeray
Thurber
Tuckers Corners
West Rural Hil
Hardin County
Cadiz
Cave-in-Rock
Elizabethtown
Karbers Ridge
Lamb
Loves Corner
Rock Creek
Rosiclare
Saline Landing
Shetlerville
Lawrence County
Applegate
Bridgeport
Billett
Birds
Chauncey
Grays Corner
Hadley
Helena
Lawrenceville
Petersburg
Petrolia
Pinkstaff
Riddleville
Russellville
Sand Barrens
St. Francisville
Sumner
Westport
Pope County
Brownfield
Eddyville
Glendale
Golconda
Gowins
Hamletsburg
McCormick
Oak
Rock
Renshaw
Rosebud
Temple Hill
Richland County
Amity
Berryville
Calhoun
Claremont
Dundas
Elbow
Gallagher
Noble
Olney
Parkersburg
Passport
Pureton
Schnell
Stringtown
Wakefield
Wynoose
Saline County
Buena Vista
Carrier Mills
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Delta
Derby
Dorris Heights
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Saline
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Texas City
Tison
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Wabash County
Adams Corner
Allendale
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Friendsville
Gards Point
Keensburg
Lancaster
Maud
Mesa Lake
Mount Carmel
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Orio
Patton
Rochester
Schrodts Station
Wayne County
Arrington
Barnhill
Bedford
Berry
Big Mound
Boyleston
Cisne
Crisp
Elm River
Enterprise
Fairfield
Four Mile
Garden Hill
Geff
Golden Gate
Grover
Hickory Hill
Hubbard
Indian Prairie
Jasper
Johnsonville
Keensville
Leech
Lemard
Massilon
Merriam
Middleton
Mount Erie
Orchard
Orchardville
Orel
Rinard
Round Prarie
Sims
Toms Prairie
Wynoose
Zenith
Zif
White County
Brownsville
Burnt Prairie
Calvin
Carmi
Centerville
Crossville
Emma
Enfield
Epworth
Garnerville
Herald
Iron
Maunie
Middlepoint
Mill Shoals
Norris City
Phillipstown
Rising Sun
Sacramento
Springerton
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