Slasher Organic Weedkiller Concentrate

4 reviews
Availability: 4 In Stock

Correction: In latest Sale email the 1L Slasher was shown with a $25 sale price. Our apologies. This price relates to the 500mL Slasher which is normally $36.45
The 1L Slasher is on sale at $45 down from $55.51

Slasher Weedkiller is a Registered Organic herbicide that is glyphosate-free and rapidly kills weeds, moss, algae and lichen.  Use it in gardens, paths, drive-ways, around buildings and as a spot spray in lawns. It works quickly to easily control weeds the organic way!

Slasher Weedkiller is a non-selective contact weedkiller.  Thorough coverage is needed when spraying because any parts you miss won’t be killed.  Take care when spraying around your favourite plants as any spray drift will also damage them.  Do not apply to wet weeds or if rain is imminent as the extra moisture will dilute the spray and weaken its impact.


  • Kills weeds, moss, algae and lichen on contact
  • Rapid action, desiccating plants within hours
  • Doesn’t require heat or sunlight to work
  • Can be used anywhere in the garden and around the house
  • Active ingredient made from plant oils (GM free)
  • No lasting spray residues (100% biodegradable within a few days)
  • Does not contain glyphosate
  • Registered Organic for use in organic farms and gardens
NOTE: Do not spray on porous surfaces without spot testing first. Slasher Weedkiller may cause discolouration on porous hard surfaces like pavers and bricks.

Aussie Gardener Tip : Slasher works well on smaller weeds and may require repeat treatments on large weeds. It works differently to glyphosate. 
Slasher is organic but it is a corrosive acid so take GREAT CARE when mixing and spraying. It is corrosive on skin and can cause permanent damage to eyes. 
Wear full protective gear and treat it seriously. 

The dilution rate for the concentrate is 70ml per litre of water and can be found on the back of the bottle. Simply peel off the top layer to reveal a second layer underneath which contains the dilution rate and instructions. Peel from the top right hand corner where it says “Peel Here”.

If you can’t see a second layer underneath it means you’ve accidently peeled back both layers instead of just the top layer.

If you have trouble separating the layers there’s a copy of the second label layer shown below. Alternatively you can download the entire product label from the Product Brochure & Label - See product images

For more information about slasher CLICK HERE  to visit the manufacturers webpage.
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