Looking over this list of compounds found in rhubarb it appears to have many compounds that are good for bees plus it has the organic acids that are used in treating for mites. ( http://nopr.niscair.res.in/bitstream/123456789/26456/1/JSIR%2060(1)%201-9.pdf ) My question is; would it be safe for the bees dried, ground to powder and mixed in patties or used in a smoker? 

Cheers

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