sam is right - don't dig it, treat with strong glyphosate. The best way is to cut into each leaf stem and pour some glyphosate into the hollow tubular stem, as well as treating the leaves.
At a school where I used to teach a new carpark was laid and 6 months later knotweed had workrd its way under an 8 ft tall brick wall and lifted the tarmac. No one had realised that the land the other side was infested with the stuff.
Catherine Hi,the last thing i want to do is worry you but Hypercharliefarley is dead right it is a serious problem even if its coming from another property get advice now, legalities can become serious as i have been through this with a house i was buying ,No mortgages are available with this problem,the council will help DO NOT cut it down as there is a special time to attack it, this is the man who helped me Glen,01559370109 he will advise you if you call him ,he is a good bloke and an expert Dont touch it till you have advise from the right people ,i hope this is of use
I had this in my last garden and I didn't know you weren't supposed to cut it down so I did, right down to under the soil. I kept doing this and eventually it gave up trying.
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sam is right - don't dig it, treat with strong glyphosate. The best way is to cut into each leaf stem and pour some glyphosate into the hollow tubular stem, as well as treating the leaves.
At a school where I used to teach a new carpark was laid and 6 months later knotweed had workrd its way under an 8 ft tall brick wall and lifted the tarmac. No one had realised that the land the other side was infested with the stuff.
good luck Alan4711
I had this in my last garden and I didn't know you weren't supposed to cut it down so I did, right down to under the soil. I kept doing this and eventually it gave up trying.