Should I kill huntsman spiders?

Huntsmen are harmless to humans and highly beneficial as pest controllers. They are active hunters of cockroaches, flies, and other insects. If you find a huntsman indoors, relocating it outside is a better outcome than killing it. Huntsmen do not build webs and are not attracted to insect prey at lights; they patrol actively. They are more commonly seen indoors after rain events when they seek shelter, but do not establish permanently inside.

Can I treat redbacks myself?

Yes for accessible redback nest sites in known locations: direct application of deltamethrin or bifenthrin spray to the web and surrounding area where the spider is present. The challenge is thoroughness: redbacks establish in multiple locations in cluttered sheds, garages, and garden areas, and retreat to inaccessible spots when disturbed. Professional treatment covers all harborage zones in a systematic pass. For redback populations in children's play areas or high-contact zones, professional treatment is recommended.

Do webs come back after treatment?

Yes, over time. Residual spray deters spiders from establishing in treated areas for 6-10 weeks, but new spiders migrating from adjacent areas will attempt to establish webs once residual degrades. Quarterly professional programs maintain continuous coverage. Between programs, regular web removal (weekly or fortnightly) removes established webs and discourages re-establishment.

Is external perimeter spray effective for spiders?

Yes. External perimeter spray applied to the building base, eaves, weep holes, and window frames is the most effective single DIY measure for reducing spider populations around the home. It kills spiders on contact and leaves residual that deters new establishment for 6-10 weeks in Brisbane conditions (shorter in wet season due to higher UV and rain degradation). Reapply every 6-8 weeks in summer, 10-12 weeks in winter.

When are spiders worst in Brisbane?

Spring (September-November) when spiders emerge from reduced winter activity and begin establishing new webs and mating. Summer (December-February) when insect prey abundance peaks and spider populations are at maximum size. Redbacks are most active October-April. Huntsmen are more commonly found indoors during summer rain events when they seek shelter from wet conditions.

How to Get Rid Of

How to Get Rid of Spiders in Your Home

Updated May 2026 9 min read Response Pest Control

Quick answer: Identify species first: treatment priority differs significantly. Remove webs weekly. Apply external perimeter pyrethroid spray every 6-8 weeks. Reduce outdoor lighting insect draw. Declutter garages and sheds. Huntsmen are harmless and beneficial; relocate rather than kill.

Brisbane has a large variety of spider species, and the correct response to each differs substantially. A huntsman in the hallway is actively hunting cockroaches and poses no threat. A redback under the garden furniture is a genuine medical concern. Treating both the same way misses the point of spider management entirely.

Brisbane Spider Species: Dangerous vs Beneficial

Medically significant

Redback spider (Latrodectus hasselti)

Female: 10mm body, black with distinctive red or orange dorsal stripe. Male is much smaller and rarely bites. Builds an irregular sticky web in sheltered, dry locations: under furniture, in garden equipment, behind stored items in sheds. Venom causes latrodectism (severe pain, sweating, nausea). Antivenom available. Any suspected redback bite warrants medical attention. Targeted spray treatment or professional program for infested areas. See the redback spider guide.

Painful bite

White-tail spider (Lampona spp.)

15-18mm, dark grey to black with white tip on abdomen. Nomadic hunter; does not build a web. Found inside homes more than most spiders, hiding in clothing, bedding, and shoes left on the floor. Bite causes local pain; the "necrotic ulcer" association is largely unsubstantiated by controlled research. Practical management: check clothing and shoes before wearing, spray internal perimeter to reduce harborage. Shaking out footwear is the most effective prevention.

Harmless and beneficial

Huntsman spider (Sparassidae family)

Up to 160mm leg span, brown and flattened. Active nocturnal hunter; no web. Eats cockroaches, flies, and small insects. Harmless to humans; bites only under extreme pressure and causes minor local pain at worst. More commonly found indoors during summer rain events when seeking shelter. Relocate outdoors rather than kill. A huntsman in the home is doing free pest control. See the huntsman spider guide.

Minor nuisance only

Garden orb weaver (Eriophora spp.)

20-25mm, variable colouration, builds large orb webs between garden plants, eaves, and fence posts. Active at night; retreats to a retreat site during the day. Not aggressive; bite is not medically significant. Primary concern is walking into webs. Web removal and perimeter spray manage populations at eaves and outdoor structures. Common and widespread across Brisbane suburbs.

Caution in sheds

Black house spider (Badumna insignis)

15-18mm, dark brown to black, distinctive funnel web in corners and crevices of window frames, eaves, and building corners. Builds persistent webs that accumulate over time. Bite causes local pain and nausea; not medically dangerous. Perimeter spray targets their established web locations effectively. Most common spider causing nuisance webs on Brisbane home exteriors.

Medical emergency if bitten

Funnel-web spider (Atrax/Hadronyche spp.)

Male Sydney funnel-web (Atrax robustus) is one of the world's most dangerous spiders but is primarily found in the Sydney basin. The Northern tree funnel-web (Hadronyche formidabilis) is present in south east Queensland. If you find a large black spider with highly defensive posture and visible fangs in Brisbane, treat it as a potential funnel-web: do not handle, call Poisons Information or seek immediate medical attention if bitten. Bites are a medical emergency.

Redback Safety: The Brisbane-Specific Concern

Redback spider safety for Brisbane properties

High-risk locations

Under outdoor furniture, inside garden hose reels, behind stored items in sheds, under letterboxes, inside children's play equipment, and around brickwork near the ground.

Before reaching in

Always check visually before reaching into any dark space outdoors. Use a torch before inserting your hand into a letterbox, hose reel, garden equipment, or shed corners.

If bitten

Apply ice pack to the bite site. Seek medical attention at the nearest emergency department. Do not apply a pressure bandage (redback venom spreads slowly; pressure is contraindicated). Antivenom is available and effective.

DIY treatment

Direct spray of deltamethrin to the web and surrounding area. Check and treat all identified harborage sites in a single pass. Professional treatment for sheds and garages with established populations.

DIY Spider Control Methods

Remove webs weekly. Use a long-handled duster or broom on eaves, external corners, under window sills, and under outdoor furniture. Web removal discourages re-establishment by removing the spider's territory marker and prey-capture structure. It does not kill spiders but consistently disrupts establishment.

Apply external perimeter spray. Bifenthrin or deltamethrin to the building's external base (to 1m height), weep holes, window frames, eaves, and garage entry points. This is the most effective single DIY action for ongoing spider management. Reapply every 6-8 weeks in summer, 10-12 weeks in winter. Avoid spraying flowering plants.

Switch outdoor lights to yellow or warm LED. White and cool-white LED outdoor lights attract moths, flies, and other flying insects that attract web-building spiders to eaves and around entry doors. Warm white or yellow lights produce significantly less insect attraction. This reduces the food source that draws spiders to the building exterior.

Declutter shed, garage, and garden storage areas. Stacked timber, cardboard boxes, garden equipment, and unused items on the ground provide ideal harborage for redbacks and white-tails. Raise items off the floor, use sealed storage containers, and inspect behind stored items regularly.

Seal gaps around doors and windows. Spiders enter through gaps under doors, around window frames, and through weep holes. Install door seals on external doors and check window flywire integrity. This reduces white-tail and other wandering spider entry rather than web-builders, which tend to establish externally.

What Works vs What Doesn't

Effective spider management

Weekly web removal at eaves and corners

Perimeter spray every 6-8 weeks

Warm LED outdoor lighting

Decluttering ground-level harborage

Quarterly professional programs

Not effective

Chestnuts or hedge apples (no evidence)

Essential oil sprays (very short residual)

Citrus peel placement (anecdotal only)

Ultrasonic repellers

Killing huntsmen (removes beneficial pest control)

Brisbane Spider Season

Spring (September-November) is the most active spider establishment period in Brisbane: spiders emerging after reduced winter activity begin building new webs and establishing territory. Populations peak through summer (December-February) when insect prey availability is highest. Pre-spring perimeter spray in August-September provides coverage through the peak establishment period and is the most cost-effective timing for an annual treatment cycle.

Redbacks are most active October-April. White-tails are encountered indoors more frequently during summer rain events when they seek shelter. Huntsmen are most commonly seen indoors at the same time for the same reason. Garden orb weavers build their largest webs in late summer and autumn.

When Professional Treatment Adds Value

DIY web removal and perimeter spray manages general spider pressure effectively. Professional treatment adds value when: established redback populations in sheds, garages, or children's play areas need a systematic treatment pass covering all harborage sites; spider activity is high year-round despite DIY treatment, indicating heavy pressure from adjacent vegetation or bushland; or when a quarterly program is preferred over DIY retreatment every 6-8 weeks. See the spider pest guide for all Brisbane species, and our spider treatment cost guide for professional program pricing.

White-Tail Spider Myth: The Necrotic Bite

White-tail spiders have a long-standing reputation for causing necrotic (flesh-rotting) ulcers that is not supported by scientific evidence. The association arose from case reports in the 1980s and 1990s that assumed white-tail bites were responsible for slow-healing wounds. Subsequent controlled studies, including a 2003 Australian study of 130 confirmed white-tail bites, found no cases of necrosis attributable to the venom. The bites cause local pain, redness, and swelling for 24-48 hours in most cases, similar to a bee sting reaction. Rare cases of secondary bacterial infection can produce more serious outcomes, but these are caused by bacteria, not the venom. White-tail spiders should be kept out of bedding and clothing (shake out shoes and clothing before wearing) but do not warrant the level of concern they have historically attracted.

The Spider-Insect Connection: Why Pest Programs Reduce Spiders

Spiders follow their prey. A general pest program that reduces cockroach, fly, and moth populations in and around the home also reduces the food source that sustains spider populations. Homes with high insect pressure due to outdoor lighting, food waste, or heavy garden vegetation near the building consistently have higher spider populations than homes where insect pressure is managed. A quarterly general pest program that addresses ants, cockroaches, and flies therefore also has a secondary spider-reduction effect, particularly for web-building species that rely on flying insect prey captured in webs at eaves and around entry doors.

This is one reason quarterly professional pest programs provide spider management as part of a general pest scope rather than requiring a separate spider-specific treatment. Reducing insect prey through perimeter spray and gel bait programs creates conditions less favourable for spider establishment. See the spider treatment cost guide for what spider-specific professional programs include.

Getting rid of spiders in Brisbane: key points

Identify species first. Huntsmen are harmless and beneficial; relocate rather than kill. Redbacks are medically significant; treat all harborage areas systematically.

Remove webs weekly and apply perimeter pyrethroid spray every 6-8 weeks. These two actions together are the most effective DIY spider management program.

Switch outdoor lighting to warm or yellow LED. Cool-white lights attract insects that attract web-building spiders to eaves and entry points.

Always check visually before reaching into dark outdoor spaces. Redbacks establish under furniture, in letterboxes, and behind stored items without obvious signs.

Pre-spring treatment (August-September) provides coverage through the peak establishment period and is the most cost-effective single annual treatment timing.

Redbacks or high spider pressure? Professional program

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Frequently Asked Questions

Huntsmen are harmless and actively hunt cockroaches, flies, and other insects in your home. They are more useful alive than dead. If one is inside and bothering you, relocate it outside using a container and cardboard. They do not establish permanently indoors and will leave on their own.

Yes for accessible individual nests: direct deltamethrin spray to the web and surrounding area. For established populations in sheds, garages, and play equipment with multiple harborage sites, professional treatment provides more thorough coverage. Always wear gloves and be certain of identification before approaching.

Yes, over time as residual spray degrades and new spiders migrate from adjacent areas. Residual lasts 6-10 weeks on external surfaces in Brisbane conditions. Regular web removal between spray intervals discourages re-establishment. Quarterly programs maintain continuous coverage.

Yes, it is the most effective single DIY action. Applied to the building base, eaves, weep holes, and window frames it kills spiders on contact and deters new establishment for 6-10 weeks. Reapply every 6-8 weeks in summer, 10-12 weeks in winter.

Spring (Sep-Nov) for new web establishment; summer for peak populations. Redbacks most active Oct-Apr. Pre-spring treatment in August-September provides coverage through the peak period and is the most cost-effective timing for an annual treatment.

Response Pest Control

Licensed pest control operators, Brisbane and Gold Coast. ABN 45 433 415 022.

More guides: Spider pest guide • Redback spider guide • Huntsman spider guide • Spider treatment cost