Was it last summer there was a brief string about how to eradicate field
bindweed? I've been working on some for 2-3 years now, and here's a report.
I'm trying to clear small flowerbeds in a plot which was mostly quackgrass,
bouncing bet (Saponaria offic.), and field bindweed. Light soil-- loamy
sand. One area got 2 RoundUp sprays and deep weeding last year, other area
got 1 or 2 sprays last year & 2 sprays this spring. In the older area, all
3 weeds appear, but are reducing due to vigilant weeding. The bindweed
grows faster when it pops up, but the bouncing bet is much more abundant &
persistant; quack is minor issue. In the newer area, all three weeds had to
compete w/ the healthiest first-year sweet clover grown here in years, yet
the bouncing bet is still the worst-- soil is rich w/ sturdy-looking roots.
So, if you think field bindweed is bad, be glad you don't have bouncing bet.