Top 3 Weed Killers for Lawns in Australia | Bow and Arrow, Dicamba M and Odessa Herbicide

Top 3 Weed Killers for Lawns in Australia | Bow and Arrow, Dicamba M and Odessa Herbicide

If you’re serious about keeping a lawn clean, healthy, and free of weeds choosing the right herbicide matters. Not all weed killers are built for the same job, below is 3 of the most popular professional grade options.

🌱 1. Bow and Arrow Herbicide

Best for: Year‑round broadleaf weed control in almost all lawn varieties. Safe on buffalo, couch, kikuyu, zoysia + more

Why it stands out Bow and Arrow is the go‑to selective herbicide utilised by professionals and home owners for Australian lawns because it targets a wide range of broadleaf weeds without damaging turf. Its three‑way active ingredient mix gives it excellent systemic movement, meaning it gets right down into the root system for reliable treatment.

Controls: White Clover (Trifolium repens), Plantain (Plantago lanceolata), Capeweed (Arctotheca calendula), Cat’s ear (Hypochoeris radicata), Bindii (Jo-Jo, Onehunga) (Soliva sessilis), Cudweed (Gnaphalium spp.), Creeping oxalis (Oxalis corniculata) + more

Application Rate: 50ml in 2-5L of water per 100sqm of lawn

Application Details: Apply with a pressure sprayer onto a dry lawn and allow the herbicide to dry. Don’t mow lawn for at least 4 days before or after application.

🌿 2. Dicamba M

Best for: Very effective control of broadleaf weeds in a range of lawn varieties excluding buffalo.

Why it stands out Dicamba M is a powerful broadleaf herbicide that treats a wide range of broadleaf weeds effectively in couch and kikuyu lawns, not for buffalo.

Controls: Bindii, Capeweed, Cats-ear, Chickweed, Clovers, Cotula, Creeping oxalis, Cudweed, Dandelion, Dock, Fleabane, Fumitory, Jo-Jo (Onehunga), Lamb’s tongue, Medics, Mustard, Narrow, leaf plantain, Pearlwort, Pennywort, Peppercress, Radish, Scarlet pimpernel, Thistles, Toad rush, Wild turnip & Wireweed/Hogweed.

Application Rate: 100ml in 15L of water per 150sqm of lawn

Application Details: Apply with a pressure sprayer onto a dry lawn and allow the herbicide to dry. Don’t mow lawn for at least 2 days before or after application.

🌾 3. Odessa Herbicide + Wetter 600

Best for: Hard to kill, waxy, or bulb based weeds like Onion weed and Guildford grass. Treats a range of broadleaf and grassy weeds. Safe on almost all lawn varieties, not QLD Blue Couch.

Why it stands out Odessa is a selective herbicide designed to tackle weeds with waxy leaves or underground bulbs weeds that many broadleaf herbicides simply bounce off. When paired with Wetter 600, it breaks through the leaf surface and delivers the active ingredient where it needs to go.

• Controls: Bindii (Soliva sessilis), Black thistle (Cirsium vulgare), Cat's ear (Hypochoeris radicata), Cotula (Cotula australis), Cudweed (Gnaphalium sp.), Guildford Grass (Onion Grass) (Romulea rosea), Medic (Medicago spp.), Mouse ear chickweed (Cerastium vulgatum), Oxalis (Oxalis corniculata), White Clover (Trifolium repens), False onion weed / Fragrant false garlic / Onion weed (Nothoscordum gracile, fragrans or borbonicum), Ryegrass, perennial (Loliumperenne)

Application Rate: Up to 1.5g in 2-5L of water per 100sqm of lawn. 2ml of Wetter600 Surfactant per 15L of mixture.

Application Details: Apply with a pressure sprayer onto a dry lawn and allow the herbicide to dry. Don’t mow lawn for at least 4 days before or after application.

🌤️ Final Thoughts

A healthy lawn isn’t just about mowing, fertilising and watering,  it’s about choosing the right herbicide for the right weed. Bow & Arrow gives you broad, safe coverage. Dicamba M controls similar weeds but can’t be used on buffalo. Odessa handles the specialist jobs that nothing else touches such as Onion Grass (Guildford Grass) and Rye Grass.

Use them strategically, apply with a calibrated pressure sprayer, and you’ll keep your lawn in top condition all year round.

Mighty Goat Lawns 🐐