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  1. #1
    Join Date
    Aug 2014
    Location
    Hardinsburg KY
    Posts
    23

    Default Varroa dont like the smell of lavender??

    I was reading this on a web site listing the top 5 bee plants. It went on to list a few other bee plants also. It stated that Lavender is an important essental oil plant. Varroa do not like the smell of lavender, so aids bees in ridding themselves of mites. Anyone ever hear of this is? Is it legitimate?

  2. #2
    Join Date
    Aug 2002
    Location
    Nehawka, Nebraska USA
    Posts
    46,316

    Default Re: Varroa dont like the smell of lavender??

    > Anyone ever hear of this is?

    Not until now.

    >Is it legitimate?

    It seems doubtful. A lot of essential oils have been tried against Varroa and most have some positive effect for the bees (and negative for the Varroa and the microbial culture of the hive...) but none seem to be significantly successful against Varroa except thymol.
    Michael Bush bushfarms.com/bees.htm "Everything works if you let it." ThePracticalBeekeeper.com 40y 200h 37yTF

  3. #3
    Join Date
    Jul 2013
    Location
    Morro Bay, California, USA
    Posts
    903

    Default Re: Varroa dont like the smell of lavender??

    Plant extracts at therapeutic doses can kill varroa. Brazilian pepper tree, tea tree extracts, and many others have been screened. Just like oxalic and formic, the natural extracts appear to function by disrupting the formation of the varroa exo-skeleton.

    What does NOT work, is plant perfume. Stuffing your hive with peppermint (or lavender) is NOT the same as treating with a concentrated, therapeutic dose. Aromatherapy is not therapeutic on Varroa.


    This paper (abstract printed below) is interesting because the plant with great efficacy (Schinus molle) is a favorite winter forage for Florida bees (which suffer Varroa terribly). The paper presents good evidence that an extract from the same plant has great therapeutic effect.


    LD50 and Repellent Effects of Essential Oils from Argentinian Wild
    Plant Species on Varroa destructor
    SERGIO RUFFINENGO,1 MARTIN EGUARAS,2 IGNAZIO FLORIS,3 CLAUDIA FAVERIN,4
    PEDRO BAILAC,5 AND MARTA PONZI5
    J. Econ. Entomol. 98(3): 651655 (2005)
    ABSTRACT The repellent and acaricidal effects of some essential oils from the most typical wild
    plant species of northern Patagonia, Argentina, on Varroa destructor Anderson & Trueman were
    evaluated using a complete exposure test. Honey bees, Apis mellifera L., and mites (ve specimens
    of each per dish) were introduced in petri dishes having different oil concentrations (from 0.1 to 25
    ml per cage). Survival of bees and mites was registered after 24, 48, and 72 h. An attraction/repellence
    test was performed using a wax tube impregnated with essential oil and another tube containing wax
    only. The lowest LD50 values for mites were registered for Acantholippia seriphioides (A. Gray) Mold.
    (1.27 ml per cage) and Schinus molle L. (2.65 ml per cage) after 24 h, and for Wedelia glauca (Ortega)
    O. Hoffm. ex Hicken (0.59 ml per cage) and A. seriphioides (1.09 l per cage) after 72 h of treatment.
    The oil with the highest selectivity ratio (A. mellifera LD50/V. destructor LD50) was the one extracted
    from S. molle (16). Oils of Lippia junelliana (Mold.) Troncoso, Minthostachys mollis (HBK) Grieseb.,
    and Lippia turbinata Grieseb. mixed with wax had repellent properties. None of the oils tested had
    attractive effects on Varroa mites.

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