Six plant extracts, namely zingiber (ginger) roots, leaves of marjoram, seeds of
santonica, clove, caraway and fenugreek were evaluated against varroa mite during
September-October,1995, at the apiary of the faculty of Agriculture, Ain Shams
University, Cairo, Egypt. The obtained results revealed that santonica, clove and
fenugreek were the most effective compounds for reducing varroa mite population.
Colonies treated with the other plant extracts( zingiber, marjoram and caraway) also
had significantly fewer mites than untreated colonies. There was no indication that any
of the tested compounds had adverse effects on honey bee colonies.