Barricade Pre Emergent 1LTR

What is Barricade Pre Emergent?

Barricade Pre Emergent is a Group D selective pre-emergent herbicide from Syngenta, containing 480 g/L prodiamine. Applied before weeds germinate, it forms a barrier in the top layer of soil that stops weed seedlings establishing in lawns, garden beds and potted plants, with control lasting up to six months per application.

Who it’s for

It suits homeowners with established lawns — including buffalo, couch, kikuyu, paspalum, zoysia and other common Australian turf types — as well as garden beds and potted plants. This 1 Litre pack is sized for a single home lawn or a season’s worth of garden bed treatments, rather than trade or larger-property use. It’s not for use on newly seeded, newly laid or sprigged turf, in vegetable gardens, or around fruit trees or sensitive plants.

Why it works

Prodiamine only controls weeds at the germination stage, so it won’t touch weeds that have already come up — those need a post-emergent herbicide first. Applied at the right time of year, it controls a wide range of grassy and broadleaf weeds including summer grass, crab grass, winter grass, paspalum and crowsfoot grass, giving up to six months of preventative protection in turf and garden beds, or up to four months in potted plants.

Application & analysis

Active constituent: 480 g/L prodiamine. For established lawns and turf, apply 30 mL per 10 litres of water with a garden sprayer (covering 100 square metres), or 3 mL in 9 litres with a watering can (covering 10 square metres) — early spring for summer weeds, or late summer to early autumn for Winter Grass. For garden beds and potted plants, apply 40 to 80 mL per 10 litres of water with a garden sprayer, or 4 to 8 mL in 9 litres with a watering can, using higher rates where weed pressure is high, and apply before mulching. Shake the container well before opening, mix half the water first, then the dose, then the remaining water. Water turf in lightly within 24 hours (avoid watering to runoff for three days); wash garden beds in with at least 3 mm of irrigation or rainfall immediately after application. Don’t apply to turf under stress or turf that isn’t fully established, and don’t plant seed in treated soil for six months afterwards.

Pack size

Barricade Pre Emergent is available in a 1 Litre container (SKU 038-346), as well as larger 5 Litre packs for bigger jobs.