I like rhubarb and strawberries in pies myself. I read an article in a magazine about the high amount of oxalic acid in rhubarb, and strawberries which results in a lot of kidney stones. After passing a whopper of a stone a few years ago I got real interested when I read about it. If you've had any problems with stones you might want to get more information. Stones have a way of focusing your attention :eek:
Now that is interesting.
Everything I've read about it lately says that most, but not all, of the oxalic acid is in the leaves and root when the rhubarb is ripe, which is what makes the leaves a dandy natural insecticide for aphids when made into a spray (below), and also good for scouring pots-n-pans.
I have no wish to pass a golfball through a garden hose but it won't keep me from having some Rhubard Custard Pies in a few weeks.
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Rhubarb/Aphid spray
1) Chop 3 to 5 rhubarb leaves and add to a quart of water.
2) Boil for 30 minutes.
3) Strain and add a dash of liquid soap.
4) Fill spray bottle with the liquid and use it on aphids.
Note: Because rhubarb leaves are poisonous, don't use this spray on edible plants.