Study: Revisiting powdered sugar for Varroa control on honey bees (Apis mellifera L.)

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 "In conclusion, powdered sugar treatment resulted in lower colony varroa levels in 2 of 8 (25%) separate analyses. We thus have  evidence that powdered sugar is most efficacious when it can be  applied early in the season and exploit a winter brood-free period. "

Link to paper on Research Gate

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