Galinsoga parviflora

Hi all, could anyone shed any light on the control of this weed. I have an allotment in Lincolnshire and several plots on the site have this weed on them. So far I've managed to keep it at bay by making sure NOTHING from any other plot arrives on my plot. Recently, the plot holder next to mine has brought in some cabbage plants. The soil with them was infested with seeds of this plant. The plot holder has now given up the plot, but left their rubbish and a good crop of G. parviflora behind. I have read the burning the soil with a weed gas-gun will kill the seeds because they die at temps above 45 DegC. (USDA web site). In many USA sates, this is a notifiable weed.

I have been in touch with the council regarding this and they have issued a standard email regarding general weed control and say that is about all they can do. Has anyone any experience of this most pernicious weed?

Cheers, mumofstig, just what I thought. I considered hand grenades, dynamite and 2 inches of petrol, and a box of matches. Ah well. The stuff is grown in Cuba apparently as an edible, but I'll stick to spinach.