Ridazon® is a selective pre and post-emergence herbicide providing a good residual activity against a wide range of annual broadleaf weeds and some annual grasses, with a contact action on a wide range of weeds up to the 2 leaf stage. Adequate soil moisture is required for good residual activity. The post-emergent effect can be enhanced with the addition of Result® Spraying oil at recommended rates. Ridazon® remains effective in the soil for several weeks.
Active Ingredient:
430g/litre Chloridazonin the form of a suspension concentrate.
What It Controls:
Susceptible Weeds:
– Fathen.
– Black Nightshade.
– Chickweed.
– Docks.
– Wild Radish.
– Willow Weed.
– Speedwells.
– Water Purslane.
Moderately Susceptible:
– Barnyard Grass.
– Cleavers.
– Spurrey.
– Summer Grass.
Weak / Resistant:
– Couch.
– Thistles.
– Larger weeds (>2 leaf stage).
Best performance = small, actively growing weeds (≤ 2-leaf stage).
How It Works:
– Root uptake (residual control) + contact action on small weeds.
Controls:
– Germinating weeds (soil activity).
– Very young emerged weeds.
Key Point:
– Needs soil moisture (rain/irrigation) for residual activity.
– Residual lasts several weeks.
Application Guidelines: (General).
– Spray volume: 300–600 L/ha.
– Ground-based application only.
Use higher water rates on heavier soilsFodder Beet / Red Beet.
Pre-emergence:
– 7 – 10.5 L/ha.
– Apply immediately after planting.
– Needs rain/irrigation within ~7 days.
Post-emergence:
– 7 – 9 L/ha.
– Apply after first true leaf.
– Add Result® Spraying oil for better knockdown.
Onions:
– 1–2 L/ha Ridazon + chlorpropham mix + Result® Spraying oil.
– Apply at flag stage, repeat 2–3 weeks later.
– Target weeds ≤ 4 leaf stage.
Crop Safety Notes:
– Risk of crop damage on light soils.
– Requires careful timing (especially post-emergence).
Resistance Management:
– Group C1 herbicide.
– Risk of resistance with repeated use.
– Rotate with different herbicide modes of action.
Safety & Environmental Hazards:
– May cause allergic skin reaction.
– Very toxic to aquatic life (long lasting).
– Very toxic to soil organisms.
Key Precautions:
– Avoid drift and runoff into waterways.
– Do not apply directly to water.
– Use full PPE when handling.
Handling & Storage:
– Shake well before use.
– Add to tank with agitation.
– Triple rinse containers → AgRecovery.
Bottom Line:
– Ridazon = specialist Beet/Onion Herbicide.
– Strong on early-season weed control.
Works Best When:
– Applied pre-emergence or very early post.
– Moisture activates soil residual.
Think of it as a foundation Herbicide for clean Crop establishment, not a rescue spray for large weeds.
Caution:
Must be used strictly according to label directions.
Available in 10L.
Registered under the ACVM Act: P009476
