Posted: 15/07/2013 at 09:51
I can only sympathise. I have this stuff in three beds at the fornt now and also find it doesn't respond to chemical attack and digging just makes it worse and i think the log wet spring has made it even more prolific than usual this year.
I'm just pulling up every stalk I see at regular intervals in the hope it will eventually weaken and give up or at least stay under control. It can take me a few hours though as the beds are quite big.
It's easier when the soil is moist so last night I watered one of the beds in preparation for pulling today. I then leave all the extracted plants to dry out for at least a week and then they go in the dust bin or on a bonfire - never in the compost heaps.