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$6.95 for up to 100 standard seed packets or including any other products: $11.95 for Queensland or $13.95 all other states more details.
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Nature's Way Organic Weed Spray   Slasher Weedkiller   Weed Blitz Organic Herbicide  
FAQs
Will all weeds be killed?
All products work best on soft, non-woody plants - seedlings, grasses, herbaceous annuals.
They are non-systemic, so won't be as effective on woody plants or plants with runners, rhizomes (underground runners) or tap roots; because the natural plant oils do not penetrate woody stems or roots. Shrubs like lantana, gorse or bamboo, deep-rooted plants like thistle and runners like kikuyu, wandering jew, nutgrass or onion weed will not likely be killed with only one spray application. Cutting large annual weeds low, encouraging fresh tender growth and then spraying works very well.

Will drift from the spray harm other plants?
Drift will cause damage on leaves but as these products are non-systemic, it won't spread to other parts of the plant. They will not penetrate woody tissue and so no harm will come to tree bark.

Does it work on other plant parts?
Weed Blitz can kill weed seeds on the soil surface. It may be useful to apply to weeds with seeds about to drop such as Cobblers Pegs. We have customer feedback regarding success with controlling bindii.

How much do I use on each plant?
Direct and complete coverage of foliage is critical to success.

How quickly will I see results?
On a warm, sunny day, effects can be seen in a few hours. A rain and irrigation free period of two hours following application is desired. Organic herbicides are a great tool in the ongoing fight to spending more of your time planting and harvesting versus weeding, like any tool it needs to be suitable for the job at hand.

Sounds great, how can I get bigger amounts?
Only Slasher is bottled and available as a concentrate, 1 litre makes 140+ litres of spray. The others are offered as a price break when you buy 3 or more so that you can pour them into your preferred pump sprayer which may be easier for you to apply.

Which is the safest?
All products we stock are Certified Organic; meet the Australian standard and rigorous testing for toxicity to be classified as non-hazardous and have no impact on soil organisms. It is a good idea to wear eye protection and gloves, and to avoid exposing the skin to the spray. All of them are Classified as Not a Dangerous Good and they pose no risk to the environment and are non-toxic to animals. None of these move through the plant tissue and into the soil like the toxic herbicides on hardware store shelves.

Quick Organic Herbicide Comparison Chart
Nature's Way Organic Weed Spray Slasher Weed Killer Weed Blitz
Size 750 ml Ready to use trigger bottle.
No concentrate
No bulk
No Ready to use size.
Concentrate only: 1 L, 5 L, 20 L, 200 L, 1000 L
7 ml to 1 L water
1 L makes 142 L spray
1 L Ready to use trigger bottle.
No concentrate
No bulk
Organic Certification
Active Natural Ingredients Acetic Acid/Vinegar and Clove Oil Nonanoic/Pelargonic Acid Pine Oil
Systemic No No No
Frequency As required depending on size, time of year and root system (corm, bulbil, tap, etc.)
Mode of Action Burns leaves (dries out) Burns leaves (dries out) Strips outer protective coating - causing cell collapse
Quantity to Use Direct and full foliage cover is necessary
Weeds Soft, non-woody, young vegetation
Grasses
Clovers
Broadleaf
Algae
Mosses
Seeds on Soil
Cautions and Safety Directions Avoid contact with eyes Avoid contact with eyes and skin Avoid contact with eyes and skin
Glyphosate Free
Soil Residue None None None
GMO Free
Visible Results Within Hours
Nature's Way Organic Weed Spray BFA Organic
Action
  • non-selective weed spray
  • quickly dehydrates and kills weeds
  • Spray all leaf surfaces to runoff. Visible results may be seen on softer, smaller weeds in full sun after just 1 hour.
  • Repeat applications are likely required for perennial species, running and matting plants or mature weeds.
Unique Quality
  • Australia's first certified organic vinegar based herbicide
  • Horticultural Vinegar (Acetic Acid) products have been registered for use in many countries as a herbicide for a long time and have proven results as evidenced by many agricultural trials done by private, state and federal agencies around the world.
  • includes herbicidal quality clove oil.
Application
  • Ready-To-Use 750 ml trigger bottle, for ease of quick application when weeds are small, young and at their most vulnerable.
  • Useful along paths, driveways, fence lines, lawn edges, in garden beds, shade houses or rockeries.
  • this is a non-specific plant killer, aim carefully as all leafy foliage is vulnerable
  • apply on a warm sunny day to young dry foliage
  • No larger sizes or concentrates are registered for sale, instead for larger areas you can empty multiple bottles into a pressure sprayer, no water needed.
Plants Controlled
  • Wide range of broadleaf weeds, clovers and grasses
  • algae and moss
Active Ingredients
  • clove oil (40 g/L) and acetic acid/vinegar (40 g/L)
PW121
PW122minimum 3 per order

Material Safety Data Sheet
Slasher Weedkiller BFA Organic
Action
  • non-selective, contact weed spray
  • causes rapid desiccation (dehydration) of plant foliage by removing or 'burning' the waxy cuticle of green vegetation
  • results are usually visible as browning and wilting within hours of application. More advanced or established weeds may only be suppressed and require repeated application.
  • no residual nor translocation/systemic activity and it will not move through soil to injure nearby plants
  • spray drift will impact all green leaves
Unique Quality
  • the USA Food and Drug Administration has cleared Pelargonic acid as a synthetic food flavouring agent, production aid and sanitiser to be used in contact with food and in washing or lye peeling of fruits and vegetables
  • slasher weedkiller is the first Pelargonic acid based 'burn-down' herbicide. It can be used where other herbicides pose significant risks in terms of public health and safety and is especially useful for those concerned about soil, animal and crop health
Application
  • 1, 5, 20, 200 L concentrates. No ready to use size.
  • mix at 7 ml / 1 litre water (1 litre bottle will make 142 litres of spray)
  • apply in warm, sunny weather with no rain or irrigation for 2 hours
  • optimum application volumes are related to weed maturity and density. Ensure that all weed foliage is totally covered. Partial coverage will give only partial control.
  • treated areas can be sown or transplanted into as soon as desirable levels of weed control are obtained but follow-up applications 7-10 days later may be required for perennials and larger annual weeds
Plants Controlled
  • young broadleaf weeds and grasses that are less than 15 cm tall
  • Algae, Lichen, Liverwort and Moss
  • 'it can be used for the suppression and control of weeds, including grasses, vines, underbrush, annual / perennial plants, including moss, saplings, and tree suckers.'(Wikipedia)
Active Ingredients
  • 525 g/L Nonanoic acid, also called Pelargonic acid, which is used in the food processing industry to assist in the peeling of fruits and vegetables. Includes orange oil
  • occurs naturally in plants including geraniums / pelargonium, apples, cheese, milk, rice, beans, oranges, potatoes and grapes
PW123
PW124
20 litre price on request
200 litre price on request

Material Safety Data Sheet
1 Litre Label Information
Weed Blitz Organic Herbicide BFA Organic
This effective, organically certified, knockdown pine oil weed control is non-selective and kills most weeds and their seeds by stripping their outer protective coating. Success will depend on the type of plant, size, season used and coverage. Soft, young, non-woody weeds will respond best. Spray directly onto foliage, completely covering the plant, during the early hours of a hot sunny day. Safe to use around pets and doesn't harm earthworms or soil microbes. Active ingredient: Pine oil 136g/L. Ready-To-Use 1L trigger bottle, for ease of quick application when weeds are small and young, and at their most vulnerable. No larger sizes are registered for sale. For larger areas you can empty multiple bottles into a pressure sprayer, no water needed. Material Safety Data Sheet

PW119
PW120minimum 3 per order


Label Information


You may also be interested in Jackie French's Organic Control of Common Weeds.
Meets National Organic Standards - products with either ingredients permitted for use in organic farms or acceptable cultural strategies for pest control. This standard is detailed in the Australian Certified Organic Standard (ACOS) 2010 as defined by Standards Australia. Organic growers should always check with their own certifying organisation for the acceptability of any product.
Australia and International Organic Certification
OG Organic Certification for Australia
FG Food Grade
UT Untreated Seed or Plant
HOW TO SHOP
Use the Minus Sign to subtract one and the Plus Sign to add one, to the quantity. Or simply type the number and hit enter. View your selection or complete your order hereCheckout Having trouble? Call Green Harvest on 1800 681014 Mon-Fri 9am to 5pm (EST) Queensland.
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