PQ200Paraquat is a water soluble, non-selective contact Herbicide for the control of many Annual and Perennial Grasses and Broadleaf Weeds.
Active Ingredient:
200g/litre Paraquat as the Dichloride Salt in the form of a soluble concentrate.
Controls:
– Most Annual Grasses & Broadleaf Weeds.
– Some Perennials (top growth only – regrowth likely).
How It Works: (Key Behaviour).
– Rapidly destroys green plant tissue on contact.
– No translocation to roots → regrowth possible.
– Inactivated by soil → no residual activity.
Critical Point:
– Coverage = everything (must hit all green tissue).
Key Use Situations & Rates:
General Boom Spraying.
– Typical rate: 1.5 – 3.0 L/ha.
– Max single & annual rate: 3 L/ha.
– Water rate: up to 300 L/ha for good coverage.
Pasture / Renovation.
– 1.5 – 2 L/ha.
Timing:
– Autumn or spring.
– Before reseeding.
– Best on young, actively growing weeds.
Lucerne (dormant).
– 2 – 3 L/ha.
Apply when.
– Crop is dormant.
– Weeds are small and active.
Orchards / Vineyards (directed spray).
– ~350 ml / 100 L.
Apply to base of trees/vines only avoid:
– Green Bark.
– Crop Foliage.
Inter-row Cropping (veg, strawberries).
– Up to 3 L/ha.
Use:
– Shielded Spray.
– On Weeds ≤7 cm.
– Strictly directed spray only.
Application Conditions:
– Rainfast: ~20 minutes after drying.
Best results:
– Warm, humid conditions.
– Actively growing weeds.
Critical Application Rules:
– Use clean water only (soil deactivates product).
– Plants must be, free of dust/mud.
– Spray quality, coarse droplets (reduce drift).
– Wind apply between 3–20 km/h.
Safety (VERY IMPORTANT).
(This is one of the HIGHEST-RISK Herbicides in use — strict handling required).
– Paraquat products are HIGHLY TOXIC.(see note)
– Fatal if inhaled.
– Toxic if swallowed.
– Causes skin & eye irritation.
– Very toxic to aquatic life.
PPE required:
– Full protective clothing.
– Gloves, boots.
– Eye/face protection.
– Respiratory protection when mixing.
Environmental Controls:
Do NOT spray.
– Into waterways.
– Near sensitive plants.
– Buffer zones required, Up to 100 m (aerial) depending on situation.
Resistance Management:
– Group 22 → resistance possible with overuse.
– Rotate with, Glyphosate and Residual Herbicides.
– Often used in tank mixes for broader control.
Practical Takeaways: (Fast burn-down → ideal for)
– Pre-plant knockdown.
– Inter-row weed control.
– Not suitable for long-term control (no residual).
– Works best when weeds are small + actively growing.
– Often paired with Residual Herbicides for longer control.
Caution:
Must be used strictly according to label directions.
Available in 20L
Please complete the Hazardous Substances form Here prior to purchasing.
Registered under the ACVM Act: P010408
