Table of Contents
- Do Natural Spider Sprays Actually Work?
- How to Get Rid of Spiders in House Naturally
- Natural Spider Repellents Worth Trying in 2026
- Safe Pest Management for Pets and Kids
- Professional Spider Treatment in Western Melbourne
- Why Spiders Keep Coming Back
- Frequently Asked Questions
Last Updated: September 28, 2026
Do Natural Spider Sprays Actually Work?
Yes, but with a catch. Natural spider sprays can deter spiders, yet their real-world results are far weaker than what you’d get from a professional treatment. Research in the Journal of Economic Entomology study on essential oils and spider behaviour found that peppermint and citronella oils changed spider behaviour and cut down web-building. A separate Entomology Today report on botanical repellents noted that chestnut and peppermint oils kept two spider families from settling in treated areas.
So the science isn’t imaginary. It’s just limited.
Here’s the problem most guides skip. Those tests happened in controlled spaces, not open-plan homes in Werribee with gaps under every door. At Trident Pest Control, we see this constantly: a homeowner sprays peppermint along the skirting boards, feels good for a week, then finds a huntsman behind the fridge.
Natural options are worth trying. They’re cheap, they smell better than chemicals, and they’re safe around kids. But treating them as a full replacement for proper spider control is where people go wrong. Below, we’ll show you exactly which natural methods pull their weight, how to use them, and when to call in help.
How to Get Rid of Spiders in House Naturally
The most effective natural approach combines three things: a repellent spray at entry points, a physical barrier in cracks, and regular cleaning to remove webs and egg sacs. No single method works alone.
Start with the spots spiders actually use. They don’t wander randomly.
- Doorways and window frames: seal gaps, then spray
- Skirting boards: wipe down, then treat
- Corners and ceilings: remove webs weekly
- Garage and shed: clear clutter, boxes, and stored timber
- Vents and weep holes: screen them where possible
Peppermint Oil and Citronella Sprays
Peppermint and citronella are the two most researched natural spider deterrents. Mix 10 to 15 drops of peppermint essential oil with water in a spray bottle, then apply along entry points. Citronella works the same way.
A few practical notes from experience:
- Reapply every few days, especially after rain or cleaning
- Test on a hidden patch first, as oils can mark some surfaces
- Keep pets away from freshly sprayed areas until dry
- Dilute properly, as concentrated oil irritates skin
The scent fades fast. That’s the honest limitation.
Diatomaceous Earth and Vinegar
Diatomaceous earth is a fine powder that damages a spider’s outer shell on contact. According to homeowner discussions on diatomaceous earth for arachnids, it’s popular as a non-toxic physical barrier. Dust it lightly into cracks, behind appliances, and along baseboards.
Vinegar is the cheaper option. Fill a spray bottle with equal parts white vinegar and water, then wipe down surfaces and webs. It cleans and repels at the same time.
Both are safe around kids and pets when used as directed. Neither will stop a serious infestation.
Diatomaceous earth only works when dry. If you apply it in a damp laundry or bathroom, it clumps and stops working entirely. Keep it to dry, hidden areas.
Natural Spider Repellents Worth Trying in 2026
Several ready-made natural repellents are worth a look if you’d rather not mix your own. Consumer interest in essential oil-based deterrents keeps climbing, with peppermint, spearmint, citronella, cinnamon, and clove oils among the most cited options (Seventh Generation guide to natural repellents).
| Product | Format | Best For | Reapply |
|---|---|---|---|
| Mighty Mint Spider Repellent | Peppermint spray | Windowsills, doorways | Every few days |
| EarthKind Stay Away Spiders | Botanical pouch | Cupboards, pantries | Every 30 days |
| Wondercide Indoor Pest Control | Cedarwood spray | Furniture, pet areas | As needed |
| P.F. Harris Home Pest Control | Essential oil spray | Perimeter barriers | Weekly |
| Safer Brand Diatomaceous Earth | Powder | Cracks, baseboards | When disturbed |
Each has a place. None replaces a proper barrier treatment.
Safe Pest Management for Pets and Kids
Safe pest management for pets means choosing methods that won’t harm animals or children when used correctly. Essential oil sprays, diatomaceous earth, and vinegar all fit that brief, provided you follow the label.
The catch is dosage. Essential oils are safe in small amounts but toxic to cats and dogs in concentrated form. Vinegar is harmless. Diatomaceous earth is inert unless inhaled in large quantities.
A simple rule set:
- Never spray oils directly on pets or their bedding
- Ventilate the room while spraying
- Let surfaces dry before kids return
- Store bottles out of reach
If you’re unsure, ask before you spray. A quick call beats a vet bill.
Professional Spider Treatment in Western Melbourne
Professional spider treatment in Western Melbourne exists because DIY methods have a ceiling. A licensed technician can find entry points you’d never spot, treat them properly, and apply products that last far longer than a peppermint spray.
Trident Pest Control works across Werribee, Melbourne, and Geelong with licensed and insured technicians. Every job uses fixed pricing with no hidden charges, and treatments are designed to be safe around kids and pets. Same-day service is available for active problems.
What most people miss is that spiders keep returning because the entry points were never sealed. Spraying kills what’s there. Sealing stops the next wave. That’s the difference between a repeat customer and a solved problem.
Why Spiders Keep Coming Back
Spiders return because the conditions that attracted them never changed. Food, shelter, and entry points stay exactly where they were.
Common reasons:
- Outdoor lights attract insects, which attract spiders
- Clutter and stored boxes give them shelter
- Gaps under doors and around pipes stay open
- Neighbouring gardens and trees harbour spiders that migrate in
- Weather shifts push them indoors looking for warmth
Fix the cause, not just the symptom. Trim vegetation back from walls, switch to yellow outdoor bulbs, seal gaps, and reduce clutter. Then treat.
Spiders follow their food. If you have a constant stream of ants, moths, or flies, you’ll always have spiders. Deal with the prey and the predator thins out on its own.
Frequently Asked Questions
What is the best natural spider repellent for Australian homes?
Peppermint oil is the most studied option. Research in the Journal of Economic Entomology (2018) found peppermint and citronella altered spider behaviour and reduced web-building, while chestnut and peppermint oil deterred spiders from settling in treated areas. Diatomaceous earth works differently, damaging the exoskeleton on contact. For most homes, a peppermint spray on entry points plus diatomaceous earth in cracks covers both deterrence and physical control.
Do essential oils actually keep spiders away?
They can, but results vary. Controlled studies show peppermint and citronella oils reduce web-building and deter spiders from treated areas. The catch is real-world performance. Entomology Today (2018) noted that in open-air residential settings, natural compounds are often significantly less effective than professional-grade treatments because oils evaporate and need frequent reapplication.
Are DIY spider sprays safe for pets and children?
Diluted peppermint oil sprays and diatomaceous earth are generally considered safe around pets and children when used as directed. Keep concentrated oils away from cats in particular, since they can be sensitive to essential oils, and avoid applying diatomaceous earth where pets eat or sleep because the fine dust can irritate airways. If you want guaranteed safe pest management for pets, ask a licensed technician about kid and pet-safe treatments.
When should you call professional pest control instead of using natural remedies?
Call a professional when you see spiders daily, find egg sacs in multiple rooms, or have had recurring treatments that keep failing. Natural repellents work best as prevention along entry points. If spiders are already established, a licensed technician can identify entry points, treat harbourage areas, and apply professional spider treatment in Western Melbourne with fixed pricing and no hidden charges.
Natural spider sprays have a real place in your toolkit, but they work best as prevention, not rescue. When spiders keep returning, the problem is structural, and that’s where professional help pays off. Trident Pest Control offers licensed and insured technicians, fixed pricing with no hidden charges, and treatments designed to be safe around kids and pets across Werribee and Western Melbourne. Get your free quote and stop the cycle for good.