David Grays Blackberry & Tree Killer 200mL Concentrate for Woody Weeds & Tree Stumps

David Grays Blackberry & Tree Killer 200mL: How This Triclopyr Concentrate Works on Tough Growth

David Grays Blackberry & Tree Killer is a concentrated herbicide for controlling a wide range of woody weeds, including blackberry, eucalypt and wattle. It also works on troublesome tree stumps, making it a practical choice for clearing overgrown or invasive growth around the home, farm or property.

The active constituent is triclopyr (120g/L), which moves through the plant to target the parts regular contact sprays often miss on tough woody species. That's what makes it suited to blackberry canes, seedlings, suckers and freshly cut stumps rather than just soft leafy weeds.

You can apply it two ways: as a foliar spray or paint onto growing plants to wet the leaves and stems, or directly onto freshly cut stumps to help stop regrowth. Mixing rates differ between blackberry and harder woody weeds, so the label is your guide for the exact ratio and carrier (water or a hydrocarbon carrier, depending on the job).

Key Features & Benefits

• Concentrated formula, so a 200mL bottle makes up a useful volume of spray

• Active constituent triclopyr 120g/L for control of tough woody species

• Controls blackberry, eucalypt, wattle seedlings, suckers and other woody weeds

• Also treats freshly cut tree stumps to reduce regrowth

• Two application methods: foliar spray/paint on growing plants, or cut-stump treatment

• Suited to home gardens, acreage and rural blocks

Sizes and Specifications

• Size: 200mL concentrate

• Active constituent: 120g/L triclopyr (present as the butoxyethyl ester)

• Solvent: liquid hydrocarbon

How to Use

• Read the label fully before mixing, as rates differ by weed type

• Foliar treatment: spray or paint the mixed solution to thoroughly wet all leaves and stems

• Cut-stump treatment: apply to freshly cut stems and stumps soon after cutting

• Timing matters: treat blackberry from late spring to early autumn while it's actively growing

• Do not spray blackberry that is drought-stressed or carrying near-ripe fruit

• After treatment, do not burn off, cut or clear blackberry for six months, so the chemical can fully translocate

Getting the Best From It

• Coverage is everything on woody weeds: wet the whole plant, not just the top growth

• Rough or old bark may need a more thorough, even application to penetrate

• Avoid spraying in windy conditions or extreme heat to reduce drift onto plants you want to keep

• For cut stumps, treat as soon as possible after cutting for the best strike

FAQs

What does David Grays Blackberry & Tree Killer control?
It controls a wide range of woody weeds, including blackberry, eucalypt, wattle seedlings and suckers, plus other woody weeds. It's also used to treat freshly cut tree stumps to help prevent regrowth.

What is the active ingredient?
The active constituent is triclopyr at 120g/L, present as the butoxyethyl ester, in a liquid hydrocarbon solvent.

How do I mix and use it?
It's applied either as a foliar spray/paint onto growing plants or directly onto freshly cut stumps. Mixing rates vary depending on whether you're treating blackberry or tougher woody weeds, so follow the rate and carrier stated on the product label.

When is the best time to spray blackberry?
From late spring to early autumn, while the bushes are actively growing. Avoid drought-stressed plants and any bushes carrying mature or near-mature fruit.

Can I use it on tree stumps?
Yes. It can be sprayed or painted onto freshly cut stems and stumps to help stop them shooting back.

Where can I buy David Grays Blackberry & Tree Killer in Australia?
Order online for delivery across Australia, or pick up in-store at Bonnyrigg, NSW. Current pricing is shown on this page.