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Black Widow Spider (Southern Black Widow, Hourglass Spider)

Black Widow Spiders in Collin County, TX | Identification and Control

Last updated 2026

The Southern Black Widow (Latrodectus mactans) is the most immediately recognizable dangerous spider in Collin County. Its neurotoxic bite causes severe muscle cramping, not local tissue death. Most bites happen in garages and water meter boxes when a hand enters a web without looking first. The spider hangs upside down in a messy tangle web and rarely leaves it.

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Black widow spider hanging upside down in web showing red hourglass marking
Black widow female specimen showing jet black body and red hourglass
Black Widow Spider
Latrodectus mactans
AKA Southern Black Widow · Hourglass Spider · Poison Lady
Risk AssessmentTap each axis to jump to detail
People 3 / 3
Neurotoxic bite causes severe muscle cramping, sweating, hypertension; children and those with heart conditions face highest risk
Property 1 / 3
No structural damage; threat is entirely to occupants
Persistence 2 / 3
Females live 1 to 3 years; each produces up to 3,000 eggs per lifetime across 4 to 9 sacs; reinfestation from woodpiles and meter boxes is continuous
Difficulty to Treat 2 / 3
Direct contact spray is highly effective; the challenge is finding all web sites and egg sacs; exterior shelter reinfestation is constant
1 Low 2 Moderate 3 High
Female body length0.5 in (12 to 13 mm); leg span up to 2 in
Male body length0.25 in; roughly 1/4 the female size; no medical risk
Adult lifespanFemales 1 to 3 years; males a few months
Eggs per sac200 to 400; up to 9 sacs per female per summer
Active seasonJuly through October peak; active spring through fall
HabitatGarage corners, water meter boxes, woodpiles, eave returns
Web typeMessy tangle web, very strong silk, hangs upside down
Threat levelMEDICALLY SIGNIFICANT

A jet-black spider with a red hourglass on her underside that most people recognize on sight. Her neurotoxic bite causes severe muscle cramping and rarely kills with medical care, but it is immediately serious in children, the elderly, and those with heart conditions.

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North Texas Pest Calendar
Black Widow Activity in Collin County by Month

Peak adult activity runs July through October in Collin County, driven by heat, prey availability, and the approach of fall. Web construction in garages and meter boxes begins in early spring when daytime temperatures hold above 60 F.

Jan
Low
Feb
Low
Mar
Low
Apr
Active
May
Active
Jun
Active
Jul
Peak
Aug
Peak
Sep
Peak
Oct
Peak
Nov
Low
Dec
Low
Dormant / Low
Active
Peak

Pattern from Texas A&M entomology records and Pest Me Off service call data across Collin County, 2023 to 2026.

Identification

What a Black Widow Looks Like

The spider that hangs upside down in a crackly, disorganized web near the ground

The adult female black widow is jet black, shiny, and about 0.5 inches in body length with a leg span up to 2 inches. The definitive marking is the red or orange hourglass on the underside of the abdomen, visible when the spider hangs upside down in her web. The color of the mark ranges from bright red to orange or yellow depending on the individual. The silk itself is distinctive: black widow silk is exceptionally strong, gives a “crackling” sound when disrupted with a broom or stick, and builds at ground level and low anchor points rather than in high ceiling corners like cellar spiders.

Males are roughly one-quarter the female’s size, brown rather than black, and carry no medical risk to humans. Spiderlings are orange and brown when young and darken with each molt. Egg sacs are pear-shaped or spherical, 0.5 inch, tan or creamy white with a parchment-like texture, and hang suspended in the web where the female guards them actively.

Black widow spider identification diagram with anatomical callouts

Black widow identification diagram with anatomical callouts

Dead GiveawaysFastest visual cues without a microscope
  • Jet black, glossy body (females only; males are small and brown)
  • Red or orange hourglass on underside of abdomen; visible when hanging upside down
  • Hangs upside down in the web; does not sit on top
  • Messy, disorganized tangle web near ground level or low corners
  • Silk is very strong and makes a “crackling” sound when swept through
  • Tan, pear-shaped egg sac suspended in the web, actively guarded
  • Prey remains (beetle wings, cricket parts) bundled at web bottom
The Name

Southern Black Widow vs Black Widow

The species in Collin County is the Southern Black Widow (Latrodectus mactans). Other widow species exist in the United States, including the Western Black Widow (Latrodectus hesperus) and the Northern Black Widow (Latrodectus variolus), but those are not the species you encounter in North Texas. In everyday use, homeowners and pest professionals in Collin County refer to the Southern Black Widow simply as the black widow, and that shorthand is accurate here.

The “widow” name comes from the historically overstated claim that females eat males after mating. This occurs in captivity under artificial conditions but is not the typical outcome in the wild. The name stuck regardless of accuracy. The medically relevant fact is not the name but the venom: neurotoxic rather than cytotoxic, meaning it attacks the nervous system rather than destroying tissue.

Look-Alikes

How to Tell Black Widows from Other Collin County Spiders

The adult female black widow is one of the most identifiable spiders in North Texas. The glossy black body and red hourglass are difficult to confuse. The common misidentification happens with false widows and dark jumping spiders, neither of which carry the same medical risk.

Species Size Key Feature Where Found
Black Widow
Black Widow AKA: Southern Black Widow, Hourglass Spider Latrodectus mactans This species
Female 0.5 in body, up to 2 in leg span. Jet black, glossy. Male 0.25 in, brown, no medical risk. Red or orange hourglass on underside of abdomen. Hangs upside down. Very strong silk with crackling sound. Messy tangle web near ground level. Pear-shaped egg sac in web. Garage corners, water meter boxes, woodpiles, under eave returns, outdoor storage benches, irrigation control boxes. Always near ground level.
Jumping Spider
Jumping Spider AKA: Bold Jumping Spider, Daring Jumper Phidippus audax
0.3 to 0.6 in body. Stocky, compact, heavy-bodied. Black or dark with white or orange markings on abdomen. No hourglass on underside. Two enormous front-facing eyes immediately visible. Iridescent green or blue chelicerae (mouthparts). Moves in quick, confident jumps. Does not build a web. Fences, exterior walls, windowsills, garden vegetation. Active daytime hunter in open areas, not hiding in dark corners near the ground.
Brown Recluse
Brown Recluse AKA: Violin Spider, Fiddleback Loxosceles reclusa
0.25 to 0.5 in body. Matte tan-to-brown coloring. Slender, not glossy. Uniformly colored legs. Matte brown body, no gloss, no hourglass. 6 eyes in 3 pairs (widow has 8 eyes). Found in undisturbed clutter and storage, not in an open web near the ground. Dark undisturbed storage: cardboard boxes, stored shoes, garage shelves, closet floors. Hidden in retreat webbing, not hanging in an open web.
Cellar Spider
Cellar Spider AKA: Daddy Long Legs, Vibrating Spider Pholcus phalangioides
0.25 in body; leg span up to 2 in. Pale, almost translucent. Thin, long legs; tiny body. Pale gray-tan, not black. Extremely thin legs (not the stocky black widow body). Hangs in loose cobwebs in upper ceiling corners, not near ground level. No hourglass, no gloss. Ceiling corners of garages, bathrooms, and closets. Hangs near the top of rooms, not at floor level where widows build.
The definitive field test for a widow: look at the underside of the abdomen for the red or orange hourglass while the spider hangs in the web. A dark spider without the hourglass is almost certainly a jumping spider, a false widow (Steatoda), or something else entirely. The black glossy body alone is not enough; confirm the hourglass.
A note on false widows. Steatoda species (false widows) are dark brown to black and build similar tangle webs at low anchor points. They lack the red hourglass and are medically insignificant. They are the most common “black widow” misidentification in Collin County. A dark spider in a low garage web without a visible hourglass on the underside is likely a Steatoda rather than a widow.
Why Black Widow Scores 3 of 3 on People Risk

People Risk for Black Widow

Black widow venom is neurotoxic, attacking nerve terminals rather than destroying tissue. The bite causes severe muscle cramping, sweating, and elevated blood pressure that peaks within 3 to 12 hours and typically resolves within 2 to 3 days with treatment. Fatalities are rare, with no reported deaths in over a decade of US poison center data, but the bite is immediately serious in children, the elderly, pregnant women, and those with cardiovascular conditions.

People Risk
3/ 3
High
Medical Risk

Black Widow Bites and When to Seek Medical Care

A black widow bite is often described as a pinprick or burning sensation at the moment of contact, sometimes with two small puncture marks visible. Within one hour, pain spreads from the bite site to the chest or abdomen, accompanied by localized sweating and goosebumps. By 3 to 12 hours, symptoms peak: severe cramping in the abdomen and back muscles (sometimes mistaken for appendicitis or a gallbladder attack), profuse sweating, nausea, vomiting, elevated blood pressure, and rapid heartbeat. The syndrome is called latrodectism. Black widow envenomation clinical review covers current treatment standards.

US poison control data records approximately 2,500 black widow bites per year with no reported fatalities in over 11 years of published data, though severe cases requiring emergency intervention occur regularly. An antivenom exists (Merck Antivenin Latrodectus mactans) but is rarely administered because it carries its own anaphylaxis risk: a documented case of fatal anaphylactic shock occurred even when the antivenom was diluted and given as an infusion. Standard management is pain control (opioids for severe cramping), benzodiazepines for muscle spasms, cardiac monitoring, and IV access. Peer-reviewed black widow bite management guidance covers first aid steps and hospital evaluation criteria.

Seek Care
When to Get Medical Attention for a Black Widow Bite

Seek emergency care immediately for: severe muscle cramping in the abdomen or back, chest pain or tightness, difficulty breathing, sweating beyond the bite site, elevated blood pressure, or any systemic symptoms. Any bite involving a child under 12, an elderly person, a pregnant woman, or anyone with a cardiac condition should be evaluated in the ER regardless of initial symptom severity, because these groups face the highest risk of severe outcome from neurotoxic effects.

For adults without immediate systemic symptoms: clean the wound, apply a cool compress, immobilize and elevate if bitten on an extremity, and monitor closely for 1 to 2 hours. If symptoms begin to spread beyond the bite site, go to the ER. Do not wait for severe cramping to develop before seeking evaluation.

Severity Signals

How Serious Is Your Black Widow Situation

A single widow in a water meter box you rarely open is a different situation than a garage with multiple occupied webs in areas the family uses daily. These signals tell the difference. Texas A&M black widow biology in Texas covers local population patterns.

High

Occupied Webs in Actively Used Areas

Webs in garage corners at floor level, inside storage benches, or near play equipment in areas that children or pets regularly access require immediate treatment. A widow in a low corner that children walk past is a contact risk, not just a nuisance.

High

Multiple Webs Across Multiple Locations

Finding widows in more than one site around the property (garage, meter box, and woodpile simultaneously) indicates an established population using consistent shelter rather than a single isolated spider.

High

Egg Sacs Found in Occupied Webs

A pear-shaped tan sac in a web with a live female present means 200 to 400 eggs that will hatch within weeks. Treatment before hatch eliminates the next generation before it disperses across the garage and yard.

Moderate

Woodpile or Construction Debris Near the Foundation

Firewood stacked against the house, leftover brick piles, and old lumber near the foundation create widow habitat within feet of entry points. Workers from these sites cross into the garage within a season if not treated.

Moderate

Heavy Landscape Stone or Water Features

Properties with heavy decorative stone, rock borders, or water features have higher natural widow pressure. Stone retains heat, provides shelter, and attracts the cricket and roach prey widows depend on.

Moderate

Newly Built Home With Adjacent Construction Debris

New developments in Prosper, Celina, and Melissa where brick, lumber, and soil disturbance remain on adjacent lots see elevated widow populations as spiders move from disturbed lots into landscaped homes with fresh shelter.

Why Black Widow Scores 1 of 3 on Property Risk

Property Risk for Black Widow

Black widows do not damage structural wood, chew through materials, contaminate food, or cause any measurable harm to the building. The property risk is zero; the risk is entirely to the people who might reach into a web without seeing the spider first. The garage, meter box, and woodpile are at risk only in the sense that they are locations where a contact bite can occur.

Property Risk
1/ 3
Low
Habitat

Where Black Widows Build in Collin County

Black widows in Collin County are primarily outdoor and transitional spiders. They build in the spaces between outdoor and occupied: the inside corners of garage door frames, inside water meter box lids, under siding lips, inside outdoor furniture, beneath eave returns at the roofline, and in irrigation control boxes. They are rarely found in living areas. The garage is the primary indoor location; beyond that, widows stay close to their exterior shelter sites.

The typical widow web is built near floor or ground level, within the first 18 inches of a vertical surface, and always anchored to something structural: a corner, a pipe, a lid interior. The spider hangs upside down in the center and rarely leaves the web voluntarily. This is one behavior that makes removal straightforward: a widow in her web is a widow you can see, target, and treat directly. Black widow spider identification and management guide from University of Minnesota Extension covers web placement and removal methods.

Local Pressure

Black Widow Pressure Across Collin County

Black widows are confirmed and widespread across Texas. In Collin County, pressure correlates with property features more than with specific neighborhoods: heavy stone landscaping, woodpiles within 20 feet of the foundation, greenbelt-adjacent lots, and properties with dense cricket populations all see higher widow activity. The July-through-October peak in Collin County corresponds to peak cricket activity, which is the widow’s primary prey source.

Craig Ranch and Stonebridge Ranch generate consistent widow calls due to greenbelt adjacency and cricket pressure. Older properties in McKinney, Allen, and Plano with mature landscaping and stone elements also show steady activity. New construction in Prosper, Celina, and Melissa with leftover brick piles and disturbed soil adjacent to new sod creates opportunistic widow shelter. Water meter boxes in any Collin County neighborhood are a consistent hotspot regardless of property type.

The Math

Cost of Doing Nothing

Cost of Doing Nothing

A female black widow produces up to 3,000 eggs per lifetime. Left untreated through one summer, a single female produces 4 to 9 egg sacs with 200 to 400 eggs each. By the following spring, that translates to dozens to hundreds of new widows across the property. Emergency room treatment for a severe black widow bite runs $3,000 to $8,000 before insurance. Keeping firewood away from the house and treating the garage corners once a season costs a fraction of one ER visit.

Why Black Widow Scores 2 of 3 on Persistence Risk

How Black Widow Populations Persist

Individual widows are relatively easy to eliminate with direct contact spray. The persistence problem is structural: as long as woodpiles, stone landscaping, meter boxes, and cricket populations remain around a property, new widows will establish each spring. Treatment without habitat management is a cycle that restarts every summer. Southern black widow range and Texas sighting records show their consistent presence across Collin County neighborhoods.

Persistence Risk
2/ 3
Moderate
Behavior and Biology

Why Black Widow Populations Keep Coming Back

Egg Output Up to 3,000 eggs per female per lifetime across 4 to 9 sacs Each sac contains 200 to 400 eggs. Treating the adult you can see without removing the sac leaves the next generation in place. A single summer season with an untreated female produces hundreds of spiderlings that disperse across the property before cold weather arrives.
Habitat Persistence Woodpiles, meter boxes, and stone features are permanent shelter Black widow shelter is not clutter that can be removed; it is structural features. Meter boxes, eave corners, irrigation boxes, and decorative stone create ideal widow habitat year after year. Even after successful treatment, the habitat remains and invites new spiders from adjacent areas the following season.
Prey-Driven Movement Widows follow cricket and roach populations Black widows are web builders, not hunters, but they position webs where prey is most abundant. A garage or crawl space with active cricket populations is a widow recruitment site. Exterior perimeter cricket control reduces the prey supply and slows widow establishment.
Seasonal Pattern Spring setup, summer peak, fall egg sac production Widows establish webs in spring as temperatures rise, reach peak adult activity in July through October, and produce their final egg sacs in late summer and early fall. Sacs overwinter in place and hatch the following spring. Treating in spring before sac production begins is the most efficient timing.
Silk Strength Some of the strongest biological silk measured; stronger than steel of equal thickness Widow silk holds prey reliably and the web survives casual disturbance. A web that is swept without treating the spider or removing the egg sac is rebuilt within a day. Physical web removal without eliminating the spider and sac is not effective control.
Adjacent Lot Pressure Neighboring properties are a constant reinfestation source Widows disperse by ballooning (releasing silk threads that carry spiderlings on wind currents). New widows reach treated properties from neighboring untreated yards each spring. This is why perimeter treatment needs to be repeated on a seasonal basis, not treated once and considered done.
Pest Me Off Translation
Latrodectism→ The clinical name for the illness from a widow bite: severe cramping, sweating, and elevated blood pressure.
Alpha-latrotoxin→ The compound in widow venom that causes massive neurotransmitter release, producing the muscle cramping and systemic effects.
Tangle web→ A messy, irregular cobweb built near the ground, not the classic wheel-shaped web most people picture.
Reality Check

Things You Should Know About Black Widows

Facts that change how you interact with your garage and yard

1
Black widow silk crackles when you sweep through it, unlike most spider silk. The “crackling” sound is the most reliable field indicator that you are disrupting a widow web before you see the spider.Why this matters. If you hear a crackle when sweeping a garage corner, stop and look before reaching further. The sound tells you the web is there before your hand goes in.
2
The antivenom for black widow bites carries its own serious risk. A documented death occurred during antivenom infusion even when diluted, due to anaphylactic shock. Only 2% of hospitalized bite patients receive antivenom under current protocols.Why this matters. Emergency management focuses on pain control and monitoring rather than antivenom administration in most cases. Do not expect antivenom to be the standard treatment if you are bitten.
3
Black widows are clumsy on flat surfaces and only move effectively within their webs. A widow on the floor is a spider that fell from its web or was displaced and is vulnerable.Why this matters. A widow crawling on the garage floor is not patrolling. It is displaced and disoriented. Do not assume it is hunting. Use a jar and cardboard to capture it without contact if needed.
4
Widow muscle cramping is sometimes diagnosed as appendicitis or a gallbladder attack when the bite goes unnoticed and no spider is found.Why this matters. If you develop sudden severe abdominal or back cramping after working in the garage or yard, and no cause is found quickly, mention possible spider bite exposure to the ER staff. It changes the differential diagnosis and avoids unnecessary imaging or surgery.
5
Yellow bug lights reduce the cricket populations that black widows depend on as prey.Why this matters. Switching outdoor lights near the garage to yellow “bug lights” reduces insect attraction to the building perimeter, which reduces the prey supply that makes your garage appealing to widows. It is a free behavioral change that has measurable effect on insect activity around the perimeter.
Why Black Widow Scores 2 of 3 on Difficulty to Treat

Treating Black Widows

Direct contact spray kills widows efficiently. The challenge is not the chemistry; it is finding every occupied web, every egg sac, and every exterior shelter site before treating. A garage treated without checking the meter box and woodpile will see new widows within weeks from those untreated sources. Complete site identification is where DIY most often falls short.

Difficulty to Treat
2/ 3
Moderate
SPIDER CONTROL
Treatment

How Pest Me Off Treats Black Widow Infestations

Black widow control starts with a complete site inventory, not a spray. A widow in a garage corner is easy to see and treat. The widows in the meter box, under the siding lip, in the irrigation controller, and behind the stacked firewood are the ones that get missed and produce next year’s population. Black widow management and control guidance confirms that complete shelter site identification is the critical step that separates effective treatment from repeat callbacks. Texas AgriLife black widow control recommendations for Texas residential properties reinforce the site-inventory approach.

Step 1

Full Site Inventory

Inspect every potential shelter location around the property: garage corners at floor level, both sides of the garage door frame, the interior of the meter box lid, all eave return corners, outdoor storage benches, irrigation controllers, under siding lips, woodpiles, and stone landscaping within 20 feet of the foundation. Map every occupied web and every egg sac before treatment begins.

Why this step: Treating only what you can see from the middle of the garage leaves half the widow population untouched. A complete site inventory ensures no occupied web is skipped. Widows are web-bound and stay near their site; finding the site means finding the spider.
Step 2

Direct Spider and Egg Sac Elimination

Apply direct contact pyrethroid (insecticide chemical family) or botanical spray to every occupied web site. Physical web removal follows treatment; all egg sacs are physically removed and disposed of, not left in place. A sprayed sac with an intact silk exterior may not deliver lethal dose to eggs inside. Physical removal eliminates this uncertainty.

Why this step: Killing the adult and leaving the egg sac in place solves half the problem. Each sac contains 200 to 400 eggs that will hatch regardless of whether the mother is gone. Removing sacs from every site treated is not optional; it is the step that prevents the next-season cycle from restarting.
Step 3

Exterior Perimeter Treatment

Apply residual perimeter treatment along the foundation, under siding, at eave returns, and around any structural feature that serves as widow shelter. Garage door track voids receive dust formulation, which is highly effective in enclosed voids where liquid products cannot penetrate evenly. The perimeter treatment intercepts new widows establishing from adjacent lots and cricket populations before they reach the garage interior.

Why this step: Widows come back every spring from neighboring properties via ballooning spiderlings. A perimeter barrier that stays active through the summer reduces the reinfestation rate from those external sources. Without it, the shelter sites refill within one season.
Step 4

Habitat Modification Recommendations

Advise on woodpile relocation (20 feet minimum from the foundation), switching to yellow outdoor lighting to reduce cricket attraction, relocating decorative stone away from entry zones, and confirming meter boxes are closed fully. These modifications reduce the shelter and prey supply that sustain widow populations without requiring chemical reapplication.

Why this step: Chemical treatment alone without habitat change restarts the cycle every season. Moving firewood 20 feet from the house eliminates one of the most consistent widow shelter sites in Collin County at zero cost. A recommendation that homeowners act on saves a callback.
Pest Me Off
Check every shelter location before spraying, including the meter box and irrigation controller. Treat all occupied webs with direct contact spray. Remove every egg sac physically. Apply perimeter residual and garage door track dust. Walk the homeowner through habitat changes: firewood distance, yellow lights, stone relocation. Follow up in 30 days to confirm no new sacs or occupied webs.
Store Products
& Other Companies
Spray the garage corners the homeowner pointed to, schedule the next quarterly visit. The meter box, the irrigation controller, and the woodpile were never checked. The egg sacs in the garage door track corners were left in place. By spring, new adults emerge from the sacs and new widows establish from neighboring lots. The problem continues and the homeowner calls again with the same complaint.
Do It Yourself
Black Widow: What You Can Do and Where DIY Falls Short
Habitat changes that actually reduce widow pressure, and the DIY mistakes that scatter spiders without eliminating them
DIY Prevention

DIY Black Widow Prevention for Your Home

Black widow prevention is mostly habitat management. The spider is not going to be eliminated from the region; the goal is removing the conditions that make your property attractive to them.

1
Move firewood 20 feet from the house. Woodpiles are the single most common black widow shelter site in Collin County residential properties. Keeping firewood at a distance does not eliminate widows from the yard but removes the shelter closest to your entry points.
2
Inspect your water meter box twice a year. Use a flashlight and a stick to check the lid interior before reaching in. Meter boxes are consistent widow sites across every Collin County neighborhood. A quick visual check before any manual contact takes seconds.
3
Switch outdoor lights to yellow bug lights. Standard white outdoor lights attract the moths and crickets that black widows feed on. Yellow-spectrum bulbs are less attractive to flying insects, reducing the prey population that sustains widow webs near your garage.
4
De-web garages and eaves at least twice per season. Regular web removal disrupts widow establishment before egg sacs are produced. A long-handled broom swept through garage floor corners in spring (before eggs are laid) removes the structure before it becomes a problem.
DIY Pitfalls

Why DIY Fails for Black Widows

Incomplete

Treating the Garage, Missing the Meter Box

The most common DIY miss: a homeowner treats every visible web in the garage and feels done, while the meter box, the irrigation controller, and the base of the woodpile go uninspected. Those sites produce new widows into the garage within weeks.

Missed Sacs

Spraying Without Removing Egg Sacs

General bug sprays do not reliably penetrate the silk exterior of a widow egg sac. A sprayed sac may still hatch. Physical removal is the only reliable approach; do not assume a sprayed sac is neutralized.

Wrong Product

General Bug Spray Without Knockdown Power

Many OTC “bug sprays” lack the knockdown speed or concentration required for reliable widow control. A widow that is hit but not killed retreats into a crack and rebuilds within days. Professional-grade pyrethroids (insecticide chemical family) applied at correct concentration deliver faster kill and longer residual.

Contact Risk

Reaching Into Webs or Under Siding Without Checking

The fastest way to get bitten is to reach into a widow web without seeing the spider first. Use a flashlight before any hand contact in low garage corners, under siding, into storage benches, and especially into meter boxes. Sweep with a stick before your hand follows.

Short-term Fix

One-Time Treatment Without Repeat

Widows disperse to new locations each spring from neighboring properties. A single treatment in June without follow-up in late summer leaves the fall egg sac production window untreated. Two seasonal treatments (spring and late summer) are more effective than one annual visit.

No Evidence

Glue Traps as a Primary Control

Glue boards placed on open floor areas are ineffective against web-dwelling widows. A widow that never leaves her web will never contact a floor trap. Glue boards work for ground-level wandering pests, not for web builders hanging in low corners.

Operational Questions

Common Black Widow Questions

Look for a jet-black, glossy spider hanging upside down in a messy, disorganized web near floor level. The definitive confirmation is a red or orange hourglass on the underside of the abdomen; you need to see the belly of the spider to confirm it. The silk itself is a field indicator: widow silk is noticeably stronger than typical spider silk and produces a “crackling” sound when swept through with a broom. Egg sacs are pear-shaped, tan, about 0.5 inches, and hang in the web near the spider.
Yes. Black widows are confirmed and widespread across Texas, and Collin County is well within their established range. Texas A&M documents the species as found statewide. In Collin County, they are most consistently found in garage corners, water meter boxes, and woodpiles from April through October, with peak adult activity in July through October. They are not rare; most homes with woodpiles or stone landscaping have widow activity somewhere on the property if it has not been treated.
The bite itself is often described as a pinprick or mild burning sensation, sometimes not noticed at all. Within one hour, pain spreads from the bite site to the chest or abdomen and is accompanied by sweating and goosebumps near the site. By 3 to 12 hours, symptoms peak: severe muscle cramping in the abdomen and back (which can feel like appendicitis), profuse sweating, nausea, vomiting, elevated blood pressure, and rapid heartbeat. Symptoms typically resolve within 2 to 3 days with proper medical management.
Go to the ER immediately for any suspected black widow bite involving a child, elderly person, pregnant woman, or anyone with a heart condition. For healthy adults, seek emergency care as soon as symptoms begin spreading beyond the bite site, which typically happens within 1 to 2 hours of the bite. Do not wait for severe cramping to develop before going in; the window to prevent peak symptom severity is narrow. If you are unsure whether you were bitten, contact Poison Control at 1-800-222-1222 for guidance.
Yes, but it is rarely administered. Merck Antivenin (Latrodectus mactans) exists and is effective for severe cases, but it carries its own anaphylaxis risk: a documented death occurred during antivenom infusion even at diluted concentration. US data shows only about 2% of hospitalized bite patients receive antivenom. Standard management focuses on pain control (opioids for severe cramping), benzodiazepines for muscle spasms, cardiac monitoring, and IV fluids. Most patients improve with supportive care alone within 2 to 3 days.
Yes. Dogs can be bitten if they disturb webs in the yard or garage, and signs of a bite include sudden muscle weakness, shaking, drooling, vomiting, and difficulty standing or walking. Cats are particularly sensitive to alpha-latrotoxin, the active venom compound, and severe reactions occur more rapidly than in dogs. Any pet showing sudden neurological symptoms after outdoor exposure should be evaluated by a vet promptly. Let your vet know about potential spider exposure so they can adjust their diagnostic approach.
In order of frequency from our service calls: garage door frame corners at floor level, water meter box interiors, woodpiles within 20 feet of the foundation, outdoor storage bench interiors, irrigation control boxes, eave return corners along the roofline, and under siding lips. Widows are rarely found inside living areas; they concentrate in the transitional zones between outside and the garage. The meter box is the most overlooked site: many homeowners have never looked inside the lid of their meter box.
If the widow is in her web and you want to remove her without a pesticide, use a clear plastic cup and a stiff card to capture her by placing the cup over the spider and sliding the card beneath. Seal the cup, take it outdoors, and release away from the structure. For widows you do not want to release, a direct spray of a contact pyrethroid (insecticide chemical family) kills them quickly. Do not reach bare-handed into a widow web; always use a tool to see and contact the spider before any manual effort.
Yes, for isolated visible spiders in accessible locations. Direct contact pyrethroid (insecticide chemical family) sprays kill widows effectively. The DIY failure point is not the chemistry; it is finding all the sites. Homeowners treat the visible garage corners but miss the meter box, the irrigation controller, and the egg sacs behind the garage door track. If you treat yourself, use a flashlight to check every low corner and exterior feature, physically remove every egg sac you find, and plan to re-inspect 30 days later for new activity.
Spring (April through May) is the most effective treatment window, timed before egg sac production begins. Treating in spring eliminates established adults before they reproduce and puts residual product in place before new widows establish from neighboring properties. A second treatment in late summer (August through September) catches adults that established after spring treatment and addresses the fall egg sac production cycle. Year-round treatment is not necessary in most cases; two seasonal applications are more cost-effective than quarterly visits for widow-specific control.
Yes, meaningfully so. Standard white outdoor lights attract moths, flies, and crickets, which are the primary prey widows build their webs to catch. Yellow-spectrum bug lights emit wavelengths that are less visible to most flying insects, reducing the nightly insect congregation around your garage entry. Fewer insects near the garage means fewer webs, because widows position webs where prey is most available. This is a habitat modification that has consistent supporting evidence in entomology literature, not a marketing claim.
New widows can establish each spring from neighboring properties via ballooning spiderlings that travel on wind currents. A single annual treatment is not sufficient to prevent reestablishment in most Collin County properties with favorable habitat. Two seasonal applications (spring and late summer) combined with habitat modification (firewood relocation, meter box inspection, yellow lighting) significantly reduce reestablishment rates. If your neighbor’s property has untreated widow activity and stone landscaping, expect ongoing pressure at your perimeter regardless of treatment.
What's Bugging You?

Black Widows in Your Garage. We Get Rid of Them.

We inspect every shelter site from the meter box to the woodpile, treat every occupied web, and remove every egg sac across McKinney, Allen, Frisco, Plano, and all of Collin County.

12Stops Per Day
Other companies run 20+ stops a day. We cap at 12. That extra time is what it takes to check your meter box, inspect the garage door track, physically remove egg sacs rather than just spraying them, and find the widow sites that are not in plain sight.
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