OCP Slasher Organic Weedkiller Concentrate 5L Herbicide
- Active ingredient
- 525 g/L nonanoic acid
- Controls
- Paths, driveways, gardens, around sheds and buildings, amenity horticulture, protected cropping, around nursery stock, spot spraying in lawns and turf, commercial/indu...
- Withholding period
- NOT REQUIRED WHEN USED AS DIRECTED. — always confirm on the registered label
Slasher Organic Weedkiller is for non-selective control of seedling and young broadleaf and grass weeds, for suppression of established weeds and perennial species, for control of moss and algae and for suckering on grapevine as per the directions for use.
Features:
- Slasher Organic Weedkiller is a contact weedkiller containing pelargonic acid (nonanoic acid). Pelargonic acid occurs in plants including geraniums.
- It acts on the foliage, causing it to quickly dehydrate and collapse.
- Results are seen as browning and wilting usually within 1 hour of application. Visible results can take longer than 1 hour on certain tough weeds or weeds in shaded conditions.
- For best results, apply when temperature is over 10°C.
- To be effective, Slasher Organic Weedkiller must come into contact with the green parts of the plant.
- Slasher Organic Weedkiller will control many weed species and is non selective.
Mixing:
Half fill spray tank and commence agitation. Slowly add required amount of Slasher Organic Weedkiller. Top up with required quantity of water. Agitate well before commencing spray procedure.
Application:
Ensure that all weed foliage is totally covered with spray as Slasher Organic Weedkiller is a contact spray. Partial coverage will give only partial control. Apply by ground equipment only using for example boom or spot sprayers. Apply using a coarse droplet spray. Optimum application volumes are related to weed maturity and density.
DO NOT spray porous surfaces without prior testing. May cause discolouration on porous hard surfaces.
Active Constituent: 525 g/L Nonanoic Acid
Active Ingredient: 525 g/L nonanoic acid
Chemical Schedule: S5
APVMA Reg. No: 68118
NOT REQUIRED WHEN USED AS DIRECTED.
Always read the current registered product label before use. Withholding periods must be observed before slaughter, milking, or egg collection. The label supplied with the product is the legal document and takes precedence. If in doubt, contact TGRM on (07) 5482 1692 or the manufacturer directly.
Always read the current registered product label before use. Dose rates and withholding periods on this page are provided as a guide only. The registered label supplied with the product is the legal document and takes precedence. If in doubt, contact TGRM on (07) 5482 1692 or the manufacturer directly.
Always read the label and follow directions for use. The registered label is the legal document governing use of this product.
Download the Safety Data Sheet for this product:
Download SDS (PDF)Required for safe handling and storage. Keep on-site per WHS regulations.
Common Questions
What does Slasher Organic Weedkiller control?
It is for non-selective control of seedling and young broadleaf and grass weeds, suppression of established weeds and perennial species, control of moss and algae, and suckering on grapevine as per the directions for use.
How fast does it work?
Results are seen as browning and wilting usually within 1 hour of application. Visible results can take longer than 1 hour on certain tough weeds or weeds in shaded conditions. For best results, apply when temperature is over 10°C.
What is the mixing rate?
The label rate for orchards and vineyards, fallow soil, algae and moss, grapevine suckers and the garden/path situations is 70 mL per litre of water (7 litres per 100 litres). Check the label table for your situation.
Is there a withholding period?
The label states: NOT REQUIRED WHEN USED AS DIRECTED. Do not enter treated areas until the product has dried.
Do you ship this product Australia-wide?
Yes, this product ships Australia-wide via road courier. It is too large or heavy for Australia Post. Call us on (07) 5482 1692 if you have any questions about delivery to your area.
Can I Click & Collect from Gympie?
Yes — Click & Collect is available from our store at 55 Tozer St, Gympie. Open Mon–Fri 8am–5pm and Sat 8am–12pm. Click & Collect is FREE on orders of $175 or more, or a flat $10 on orders under $175. Select Click & Collect at checkout and we will have your order ready.

