Bifenthrin Explained: What It Is, How It Works, and Why It’s So Effective

A complete guide from Everbox Pty Ltd

If you’re dealing with ants, termites, or turf pests, chances are you’ve come across bifenthrin one of the most trusted and versatile insecticides available in Australia today.

Derived from the pyrethroid family, bifenthrin is a fast-acting, long-lasting insecticide that disrupts the nervous systems of pests. It’s widely used in everything from home gardens and commercial turf to agricultural operations and structural pest control. In this article, Everbox breaks down what bifenthrin is, how it works, and how to choose the right product for your pest control needs.

---

What Is Bifenthrin?

Bifenthrin is a synthetic pyrethroid, modeled after natural compounds found in chrysanthemum flowers. It’s one of the most widely used insecticides across the globe thanks to its broad-spectrum action and residual effectiveness.

Bifenthrin targets insects’ nervous systems, causing paralysis and death shortly after contact or ingestion. Even if you don’t directly hit the pest, bifenthrin’s residual effect ensures it keeps working long after application making it ideal for use in areas where pests hide or travel.

It’s safe for use both indoors and outdoors and is commonly applied:

• Around buildings and garden edges
• On lawns, ornamental plants, and crops
• In crawl spaces, cracks, and under appliances

Note: Bifenthrin is safe for use around people and pets once dry, but is toxic to aquatic life so always avoid applying it near waterways.

---

Why Bifenthrin Is a Go-To Pesticide

With long-lasting effects, a wide range of target insects, and multiple application formats, bifenthrin is one of the most dependable choices for both homeowners and professionals. It fits easily into Integrated Pest Management (IPM) strategies and delivers fast knockdown with lasting results.

---

What Pests Does Bifenthrin Control?

Bifenthrin is effective against over 75 insect species, including:

• Fire ants, Argentine ants, and other common ants
• Termites and wood borers
• Spiders, ticks, fleas, and mosquitoes
• Silverfish, cockroaches, and crickets
• Armyworms, moths, stink bugs, and beetles
• Earwigs, centipedes, millipedes and more

Its versatility makes it an excellent all-in-one option for managing multiple infestations.

---

Bifenthrin Application Methods

Bifenthrin comes in several forms to suit different pest control needs:

Liquid Concentrates

Ideal for spraying building perimeters, lawn areas, and garden beds. Mix with water as per label instructions and apply using a handheld or backpack sprayer.

Granules

Great for turf and soil treatment. Broadcast with a spreader for even coverage across lawns and garden edges.

Ready-to-Use Sprays

Perfect for spot treatments and indoor use especially under sinks, along skirting boards, and in tight spaces.

---

Top-Rated Bifenthrin Products

Here are some of the most effective and trusted bifenthrin-based products available in Australia:

✅Liquid Options

• Surefire Zeus Termiticide & Insecticide (100g/L) – Long-lasting, broad-spectrum control across home, garden, and commercial applications.
• AntagonistPro Residual Insecticide (80g/L) – A polymer-enhanced formula ideal for turf pests and harsh outdoor conditions.
• Bifenthrin Ultra 300EC (300g/L) – A high-load, fast-acting formulation suitable for agricultural, turf, and general pest control.
• Surround Termiticide (100g/L) – Protects buildings, fences, and poles from termite damage, while also managing other household pests.
• Surefire Mosquito & Midge Slayer (100g/L) – Specifically formulated to handle mosquito and midge populations on outdoor surfaces.
• Venom Professional 100SC (100g/L) – Covers over 100 pest species; suited for turf, ornamental plants, and general interior/exterior use.
• Surefire Fivestar Insecticide (80g/L) – Water-based, low-odour control for ants, mosquitoes, spiders, and more.

Granular Option

• Surefire Anstar Granular Insecticide (2g/kg) – Effective for controlling fleas, ants, ticks, and other lawn-dwelling pests. Can be used as a knockdown or as a preventative treatment.

---

How Often Should You Reapply Bifenthrin?

Thanks to its residual action, bifenthrin continues working for weeks after application – but timing depends on a few key factors:

• Outdoor use: Reapply every 4-8 weeks
• Indoor use: Effective for up to 12 weeks
• Weather: Heavy rainfall may reduce efficacy – reapply if needed
• Infestation severity: High pest pressure may require more frequent application
• Product type: Always follow the label for specific reapplication intervals

---

Is Bifenthrin Safe Around Pets?

Yes – once it dries, bifenthrin is considered low-toxicity for most pets, including dogs and cats. That said, it’s important to take safety precautions:

Pet Safety Tips:

• Keep pets away during application
• Allow surfaces to fully dry before letting pets re-enter treated areas
• Never apply directly to animals
• Store products safely and out of reach

Important: Bifenthrin is highly toxic to aquatic animals and moderately toxic to birds. Avoid using near ponds, tanks, or aviaries.

---

Final Thoughts

Bifenthrin is a powerful, reliable, and versatile insecticide – making it a smart choice for homes, gardens, farms, and commercial operations alike. Whether you’re managing termites in fence posts or ants in the backyard, there’s a bifenthrin formulation to get the job done.

At Everbox, we stock a full range of bifenthrin-based products and can help you choose the right one for your needs. If you’re unsure which formulation suits your situation, get in touch with our team for expert advice.