On 13 Mar 2004 14:01:16 -0800, (Brendan O)
wrote:

I have broadleaf Arrowhead, maybe it's called Arrowroot, I can't remember.
It's a dense bulb growth that is taking over areas of my property. I have
tried everything from Roundup, to Crossbow, to Diesel (yes, I was willing
to try anything). The look sick afterword, but don't die.

What will actually KILL these bulbs once and for all instead of digging
them? Digging isn't an option.

It appears, however, that the roots/bulbs are edible. There are a
couple of recipes in alt.food.asian. It is my contention that as soon
as a 'weed' is discovered to have culinary use and is harvested for
food, it runs away.

From
http://www.bioone.org/bioone/?reques...e=03&page=0381

"Bensulfuron is the only herbicide currently available for use
throughout the California rice growing region that provides complete
control of California arrowhead"