Ken-Ester 680 is a Herbicide for Broadleaf Weed Control in Pasture and Turf. Kills Broadleaf Weeds but generally leaves Grasses alive.
Active ingredient:
680 g/L 2,4-D as the 2-ethyl hexyl ester in the form of an Emulsifiable Concentrate. (vapor)
What It Controls:
Targets a wide range of Broadleaf Weeds, such as:
– Thistles.
– Docks.
– Ragwort.
– Plantain.
– Buttercups.
Works Best When Weeds Are:
– Young.
– Actively Growing.
Where You Can Use It: (The label allows use in).
– Pasture.
– Turf/lawns.
– Cereals (Wheat, Barley, Oats).
– Non-crop areas (Roadsides, etc).
Important:
It is highly damaging to sensitive Plants, including:
– Grapes.
– Tomatoes.
– Vegetables.
– Ornamentals.
Even small spray drift can cause damage.
How It Works:
– Mimics plant growth hormones.
– Causes uncontrolled growth → Plant death.
– Only affects Broadleaf Plants, not Grasses.
Mixing & Application: (General Guide from label type).
Rates vary by situation, but typical ranges:
Boom Spraying:
~30–100 L water per hectare.
Application Rate: (Very General).
~0.2 to 4+ L per hectare depending on Weeds/Crop.
Key Rule: (Always adjust rate based on).
– Weed type.
– Size of Weeds.
– Crop/Pasture.
This product is not one-rate-fits-all.
When To Spray:
Best Conditions:
– Warm, mild weather.
– Low wind.
– No rain expected for several hours.
Best Timing:
– When Weeds are small and actively growing.
Avoid:
– Drought-stressed plants.
– Frost conditions.
– Very hot or windy days.
Drift Warning: (VERY Important).
The label strongly emphasises:
– Spray drift risk is serious.
– Can damage neighbouring Crops.
– Can travel long distances in warm conditions.
Especially Risky Near:
– Vineyards.
– Gardens.
– Shelter Belts.
This is one of the biggest real-world risks with 2,4-D ester products.
Safety & PPE: (From the label/SDS).
– Harmful if swallowed.
– Can cause skin irritation/allergy.
– Very toxic to aquatic life.
Required Protection:
– Gloves.
– Protective clothing.
– Eye protection.
– Avoid inhaling spray.
General Rules:
– Don’t eat/drink while using.
– Wash after handling.
– Keep away from waterways.
Withholding / Grazing: (typical label guidance).
– Usually short withholding periods (often days, not weeks).
– May require delay before Grazing or Cutting.
– Exact timing depends on use—always follow the specific table in the label.
Compatibility: (mixing with other sprays).
Often compatible with:
– Glyphosate.
– Atrazine.
– Dicamba.
But:
– Always jar test before mixing.
– Follow label combinations only.
Key Risks: (most people underestimate these).
– Drift damage to neighbours.
– Killing Clover in Pasture.
– Damage to Trees/Ornamentals.
– Water contamination.
Bottom Line:
– Excellent for Broadleaf Weed Control in Grass systems.
– Cheap and effective.
But easy to misuse if you ignore:
– Drift.
– Timing.
– Correct Rates.
Caution:
Must be used strictly according to label directions.
Available in 20L, 200L, 1000L.
Registered under the ACVM Act: P008710
