you'll need the gas hose as well and a regulator Shame you aint local as i could probably get you one a bit cheaper but the RM and custard would probably bend it in the post
I use a weed wand in conjunction with a decent weedkiller.
Firstly I apply the weedkiller & let it soak into the plant. When the plant dies, it dries up - then hit it with the flames, just leaves ash to blow away.