Homemade ideas to kill brambles

[Ifeelbetterwhenimdancing]

I’m not a gardener so help needed please!
our neighbours’ garden backs onto ours with a 6ft fence separating us. Their home is a second home and we don’t know them, they rarely visit and the house is empty for the majority of the time. They placed a shed in their garden but left space between the shed and our fence. We have had a blackberry bush / brambles grow wildly - it’s way taller than the fence and is coming into our garden. Our washing is getting caught on the spikes when it’s hung on our washing line and the wind blows it.
we have trimmed it back a few times but it’s too tall for me to reach to do a decent job.
Is there a way to remove / kill this other than me having to go and buy expensive weed killer? There’s no way I can get to the roots (no access to the garden - which would be trespassing anyway, their house is on a different street to ours and I don’t even know which front door is theirs)
we also have stems of a bush (?) growing through our fence, which again, I’ve trimmed but I presume it will keep happening. Not sure if I can do anything else, I wouldn’t want to kill
their plants if they’re expensive!
my plan is to speak to them the next time they are in the property, if I hear them in their garden - to see if they would mind clearing some of the stuff that’s encroaching into our garden.
Many thanks - would love to hear some remedies I can try 😊

If you can reach a leaf safely, you can paint glyphosphate on, which will be absorbed and will the brambles from the roots. It's nasty stuff though so be careful with it.

Isn’t that Round Up? One of the most environmentally destructive chemicals used in agriculture?

Ask them to clear it or get a gardener to come now and again to hack it back on your side.

You will need to tell them before using weed killer as it will affect the berries before the plant dies. I got rid of mine by borrowing a neighbour’s goat but realise that was quite a unique solution 😂 🐐

Just to add that pulling the roots up is much easier in the spring before it grows new leaves.. just to bear in mind if they are happy to let you have a go at it!

I agree with @BananaPeanutToast . I hate using glyphosphate and avoid it if at all possible but if you can't get access to the garden and aren't able to chop the overgrowth back then it could be used as a worse case option if you cant do anything else.

Sometimes it is a necessary evil. The good thing is that it does break down on contact with soil, and if you paint it on rather than spray then it should kill the plant without damaging anything else. I have even covered the painted leaves with plastic bags before to prevent anything accidentally touching it.

I use it where I have very inaccessible brambles growing high up out of gaps in my neighbour's wall which needs repointing. I can't pull them out because they are too well rooted and they are too inaccessible to be able to regularly chop them to eventually kill them. If anyone has a good secret bramble killing method, I would much prefer to use that rather than glyphosphate.

@Numsmetty yep! Don't poison anyone! Maybe wait till after blackberry season?

Glyphosate works best when the plant is in active growth. One technique for tough weeds involves cutting them down then spraying the active new soft growth

I dug mine out and planted a lawn. It got rid of them.

You can’t use pesticides on someone else’s land.