Un studiu facut in Iran 2011http://www.academicjournals.org/journal ... 2D71627491
Most of these extracts cause the mite to
release from the bees, but do not cause mite mortality,
and are therefore of limited value. For example, Smirnov
et al. (1984) used a plant acaricidal preparation (KAS-81)
with sugar syrup for the control of varroa during the whole
season without harming the bees. Calderone et al. (1997)
used plant extracts for the control of the varroa mites and
Acarapis woodi (Acari: Tarsonemidae) in colonies of A.
mellifera. They found that mite prevalence values
increased 28.3% in the control colonies by the following
May, but decreased 22.4% in colonies receiving thymol
and citronella. Whittington et al. (2000) and Dimetry et al.
(2005) found that Neem oil spray killed 90 to 94% of
varroa mites but thymol oil spray reduced varroa mites to
79% in honey bee colonies. Abd El-Wahab and Ebada
(2006) studied the toxicity of Citrus aurantiumL. (sour
Orange), Cymbopagon flexuosus (lemon grass) and
Citronella volatile oils against varroa mite and found that
the mean percentage of varroa infestation on the worker
brood and adult workers of honey bee reduced to 100%
after the fourth week of treatment with Citrus aurantium L.
(sour Orange), Cymbopagon flexuosus (lemon grass)
and after the third week of the treatment with Citronella
oils. Romeh (2009) showed that sycamore leaves (Ficus
sycamorus) extract is effective in the control of varroa
Mai pe scurt: KAS-81, cimbru, pelin, lamaie - cele mai eficiente.
Mai putem incerca: frunze de nuc, tutun, menta