Slasher Organic Weedkiller 750ml
Environmentally aware gardeners will welcome this new organic herbicide, Slasher Weedkiller, after nearly 10 years of research and development. This extensive research programme was designed to control a broad range of weeds as well as moss, algae and lichen. You can spray it anywhere around the house and garden for effective organic control. It works on contact and rapidly burns and desiccates plants so you’ll see results within a few hours. Slasher Weedkiller is made from plant oils which have been turned into a substance called nonanoic acid. Nonanoic acid is also known as pelargonic acid and occurs naturally in plants (including pelgaroniums which explains the alternative name). While Slasher Weedkiller is a powerful herbicide it is still incredibly safe for the environment – it rapidly breakdowns in soils and is completely gone within a few days. Slasher Weedkiller contains no glyphosate and is Registered Organic and approved for use in organic gardens and farms.
Environmentally aware gardeners will welcome this new organic herbicide, Slasher Weedkiller, after nearly 10 years of research and development. This extensive research programme was designed to control a broad range of weeds as well as moss, algae and lichen. You can spray it anywhere around the house and garden for effective organic control. It works on contact and rapidly burns and desiccates plants so you’ll see results within a few hours. Slasher Weedkiller is made from plant oils which have been turned into a substance called nonanoic acid. Nonanoic acid is also known as pelargonic acid and occurs naturally in plants (including pelgaroniums which explains the alternative name). While Slasher Weedkiller is a powerful herbicide it is still incredibly safe for the environment – it rapidly breakdowns in soils and is completely gone within a few days. Slasher Weedkiller contains no glyphosate and is Registered Organic and approved for use in organic gardens and farms.
Environmentally aware gardeners will welcome this new organic herbicide, Slasher Weedkiller, after nearly 10 years of research and development. This extensive research programme was designed to control a broad range of weeds as well as moss, algae and lichen. You can spray it anywhere around the house and garden for effective organic control. It works on contact and rapidly burns and desiccates plants so you’ll see results within a few hours. Slasher Weedkiller is made from plant oils which have been turned into a substance called nonanoic acid. Nonanoic acid is also known as pelargonic acid and occurs naturally in plants (including pelgaroniums which explains the alternative name). While Slasher Weedkiller is a powerful herbicide it is still incredibly safe for the environment – it rapidly breakdowns in soils and is completely gone within a few days. Slasher Weedkiller contains no glyphosate and is Registered Organic and approved for use in organic gardens and farms.
Environmentally aware gardeners will welcome this new organic herbicide, Slasher Weedkiller, after nearly 10 years of research and development. This extensive research programme was designed to control a broad range of weeds as well as moss, algae and lichen. You can spray it anywhere around the house and garden for effective organic control. It works on contact and rapidly burns and desiccates plants so you’ll see results within a few hours. Slasher Weedkiller is made from plant oils which have been turned into a substance called nonanoic acid. Nonanoic acid is also known as pelargonic acid and occurs naturally in plants (including pelgaroniums which explains the alternative name). While Slasher Weedkiller is a powerful herbicide it is still incredibly safe for the environment – it rapidly breakdowns in soils and is completely gone within a few days. Slasher Weedkiller contains no glyphosate and is Registered Organic and approved for use in organic gardens and farms.
in 3 offers
The lowest price for Slasher Organic Weedkiller 750ml right now is $14.00 at Woolworths, compared across 3 retailers.
The all-time low was $10.00 on 31 July 2025 — today's price is 40% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 14 May 2026.
Last updated at 14/05/2026 10:21:29
Slasher Organic Weed Killer Ready To Use 750mL
30-day returns
Slasher | Organic Weedkiller RTU 750mL OCP
Delivery $12.50
Slasher Organic Weedkiller (Size: 750ml RTU)
Delivery between 18–22 May $12
originally posted on ebay.com
I sprayed some weeds with this product, and two hours later I went out to check. They were already shrivelled up and dying. By the following day they were dead. It works fast. With my large house block I can't keep up with weeds by manually digging them out, and my back doesn't let me do it for long anyway, so Slasher is a great product for me. It keeps the fencelines clear of weeds and kills anything that doesn't belong.
originally posted on power-planter-australia.com
I like to use organic when I can, and this definitely does the job on the surface. However it's not as strong as more poisonous products such as Roundup. It works well with the above ground part of the plant but doesn't really get to the roots, so weeds tend to grow back.
originally posted on power-planter-australia.com
All products that I have purchased from Aussie Gardener has been of top quality. I have not had a problem with any of them. Definitely a winner.
Slasher Organic Weed Killer Ready To Use 750mL
30-day returns
Slasher | Organic Weedkiller RTU 750mL OCP
Delivery $12.50
Slasher Organic Weedkiller (Size: 750ml RTU)
Delivery between 18–22 May $12
I sprayed some weeds with this product, and two hours later I went out to check. They were already shrivelled up and dying. By the following day they were dead. It works fast. With my large house block I can't keep up with weeds by manually digging them out, and my back doesn't let me do it for long anyway, so Slasher is a great product for me. It keeps the fencelines clear of weeds and kills anything that doesn't belong.
I like to use organic when I can, and this definitely does the job on the surface. However it's not as strong as more poisonous products such as Roundup. It works well with the above ground part of the plant but doesn't really get to the roots, so weeds tend to grow back.
All products that I have purchased from Aussie Gardener has been of top quality. I have not had a problem with any of them. Definitely a winner.
Slasher is by far the best weedkiller I've come across. Knocks out whatever leaf surfaces it contacts plus sneaky **** regrowth super quickly. Weekkiller that's glyphosate free is a must because I want my soils to remain clean, not be contaminated with dangerous chemicals. Derived from plant oils, it's organic,soil friendly and deadly to weeds!
Have been looking for a glyphosate-free **** killer for years, Slasher is perfect! In the Brisbane floods pest and noxious seeds washed through our gardens & burst into growth. From thousands of tiny eruptions, weeds everywhere, to much larger infestations, within hours the effects were obvious. Dead weeds, happy gardener, love it, love it!
The title is click bait to get you hooked.A good **** killer for both spot weeds and large infestations. Effective against most weeds in paths and garden beds. Used it for several years. Would definitely recommend.Andrew
This stuff works! It has saved me a lot of time and backbreaking work weeding my brick driveway. I just sprayed and the weeds died. Very happy, highly recommend. Thanks
Once I mixed and sprayed the weedkiller (easy btw), the weeds started to go brown within about an hour, and have continued to die off in the following week. Some of the larger weeds may need a further spray though.
It worked perfectly and very quickly on the weeds in the path, which were all in shade and sprayed only once, BUT, the weeds further down on same path, in full sun are STILL not even looking sick after being sprayed 3 times over 4 days. These weeds are all still very healthy looking so I can only conclude that it works in the shade but not in full sun. Very disappointing.
It is totaly usless, have sprayed two times and after the first rain they are back, on thick leaf weeds nearly usless not much better on anything else, I live on acarage spend most of my time respraying, Bunnings you are a Dill.
