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Weed control, management, ecology, and minutia
Comments:
by Stephen Sanguinetti
on February 2, 2021 at 8:59 AM
Now I know the background for Day of the Triffids movie.  
LOL
by Sonja Lewis
on February 2, 2021 at 10:05 AM
Sounds like this is Reynoutria japonica? The title should've said "JAPANESE knotweed", because most of us are know only of the short, nuisance annual knotweed, Polygonum aviculare. In NW Idaho and E Washington, There are severe neighborhood tensions over the Reynoutria--beloved by its cantankerous originators, and hated by those it has invaded. It's been taking over upland stream banks, too. In Asia, it's leaves are harvested as a vegetable, sometimes with a Nigari treatment, whose magnesium MIGHT help bind the high oxalate content. (Wikipedia)A case of "Eat thy enemy?" Its honey is also valued, and medicinal effects are being researched. Now that I'm in NW Calif, my problem is a Golden Bamboo grove started by former owner, with horrifying rhizomes.
 
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