Blackberry removal: what actually works around Bendigo

Blackberry is declared a regionally controlled weed across most of Victoria's catchment areas and restricted in others - landholders have an ongoing obligation to control it. Check your catchment's status and what that means for you on the Agriculture Victoria blackberry page below.

Why it spreads faster than people expect

Blackberry canes arch over and root wherever the tip touches the ground, so a thicket expands outward every season it's left. The root and crown system is the only perennial part of the plant - canes die back after fruiting, but the crown survives and keeps pushing new growth. That's the part that has to be dealt with for control to hold, and it's below ground, where mulching a cane thicket doesn't reach.

Where it usually sits on a property

Fence lines, creek and dam edges, old yards and neglected paddock corners are the common spots. Along waterways, treatment options are more limited and herbicide use needs to follow label restrictions closely - check with a weed control adviser before assuming a product is suitable near water.

Clearing opens access, it doesn't finish the job

Forestry mulching can knock down the bulk of a mature thicket, cutting canes and crown growth down to ground level and mulching it where it stands. That gets you back into the area to see fence lines, assess what's underneath, and plan the next stage. It won't remove the root crown, and surviving crowns will reshoot - usually within the same season on Central Victorian ground. Treat the mulched finish as access gained, not blackberry gone.

Common mistakes

Mulching a thicket once and assuming it's dealt with is the most common one. Spraying regrowth too early, before there's enough leaf for the herbicide to take up and move to the root, is another - a weed adviser can tell you the right regrowth stage for the product you're using. Pushing machinery into a thicket before checking what's underneath - old fencing wire, dumped rubbish, uneven ground - is a real hazard; walk and probe the edges first, or have the operator do it before committing the machine.

Sequencing the work

Mulch or cut back the bulk when access allows and before Fire Danger Period restrictions apply. Let regrowth come through - generally within a few months on reasonable ground - then treat it while it's leafy and actively growing, which is when herbicide is most effective. Re-inspect the following season. Heavily infested sites usually need more than one year of follow-up before the crown dies out.

What a good outcome looks like

Access restored, fence lines visible and walkable, and a clear record of where regrowth showed up so you're not guessing next year. It does not look like bare dirt with no regrowth ever again - some reshooting after the first season is normal, and persistent follow-up is what brings it down over time, not a single clearing pass.

What to ask before booking

Ask whether the quote is for mulching the standing growth only, what's left behind, and who's responsible for the follow-up spray program. A site visit lets us see density and access properly - we don't quote this over the phone.

Ironbark's mechanical clearing and mulching are available now. Commercial weed spraying needs a Commercial Operator Licence (COL) from Agriculture Victoria, which Ironbark is arranging; until it's in hand, arrange herbicide treatment separately with a suitable weed-control contractor or adviser, following the product directions and any waterway restrictions.

• Agriculture Victoria: blackberry
• Invasive plant classifications