12.5 % black seed oil in 1:1 sugar syrup kills 72% of varroa mites on day 7.
3 % garlic oil in 1:1 sugar syrup kills 66% of varroa mites on day 7.
3 % cloves oil in 1:1 sugar syrup kills 77% of varroa mites on day 7.
Systemic mode of action.

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