Herbicide & Pre-emergent Calculators

Selective weed killers (kill existing weeds) and pre-emergents (stop weeds before they sprout). Pick a product, enter your lawn area, and the calculator does the rest.

Bow & Arrow

Selective broadleaf weed killer. Controls White Clover, Bindii, Cat's Ear, Capeweed, Plantain, Cudweed and Creeping Oxalis.

See what size bottle you need
Bow & Arrow Herbicide – Broadleaf Lawn Weed Killer

Estate

Selective broadleaf weed killer for lawns. Controls Clover, Bindii, Cat's Ear, Capeweed, Plantain and more.

See how much Estate you'll need
Estate

Dicamba M

Broadleaf weed control for all turf. Targets Clovers, Bindii, Dandelion, Plantain, Thistles, Wireweed and more.

See how much Dicamba M you'll need
Dicamba M - Broadleaf Weed Control

Tempra

Selective post-emergent for Mullumbimby Couch and Nutgrass in established lawns. Granular pack.

See how much Tempra you'll need
Tempra 750 WG - 25g

Coliseum

Selective grass weed control. Targets Winter Grass (Poa annua) and Ryegrass in established lawns.

See how much Coliseum you'll need
Coliseum Herbicide

Monument

Broad-spectrum selective herbicide. Controls Bindii, Ryegrass, Winter Grass, Nutgrass, Oxalis, Kikuyu and more.

See how much Monument you'll need
Monument Herbicide 100ml

Propyzamide

Pre-emergent for Winter Grass and Ryegrass in Couch and Buffalo lawns. Rate depends on your grass type.

See how much Propyzamide you'll need
Propyzamide Wintergrass Control

Odessa

Granular selective herbicide. Controls Bindii, Oxalis, White Clover, Ryegrass, Winter Grass, Bahia and Onion Weed.

See how much Odessa you'll need
Odessa Herbicide 50g

Barricade

Pre-emergent herbicide. Stops Summer Grass, Crab Grass, Crowsfoot, Winter Grass and Paspalum before they germinate.

See how much Barricade you'll need
Barricade

Spartan

Pre-emergent herbicide (prodiamine). Long-lasting control of Summer Grass, Crab Grass, Crowsfoot, Winter Grass and Paspalum.

See how much Spartan you'll need
Spartan Pre-Emergent

Glyphosate 360

Non-selective broad-spectrum knockdown herbicide. Kills weeds, grass and unwanted plants for spot-spraying, garden bed prep, paths and driveways. Rate varies by weed maturity.

See how much Glyphosate you'll need
Glyphosate 360