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The resistance of Varroa jacobsoni Oud to pyrethroids: a laboratory assay
On a mis au point une methode pour etudier la sensibilite de l'acarien Varroa au fluvalinate, a la flumethrine et a l'acrinathrine. Les acariens ont ete preleves a partir de couvain operculeExpand
The resistance of Varroa jacobsoni Oud. to acaricides
A serious problem in the control of the mite Varroa jacobsoni Oudemans is the selection of acaricide-resistant strains. Increased tolerance of this mite to several active substances (acrinathrin,Expand
Activity of oxalic and citric acids on the mite Varroa destructor in laboratory assays
The toxicity of oxalic and citric acid to Varroa destructorAnderson and Trueman was stud- ied with a laboratory assay. A contact test was used for the bioassay. Capsules were sprayed with solu- tionsExpand
A technique for reproduction of Varroa jacobsoni Oud under laboratory conditions
Varroa jacobsoni females were taken from bee larvae within 0-15 h of capping and transferred to larvae of the same age in artificial cells, 5.8-7.0 mm in diameter, made of beeswax or gelatin. TheExpand
Selection of Apis mellifera workers by the parasitic mite Varroa destructor using host cuticular hydrocarbons
SUMMARY The parasitic mite, Varroa destructor, is the most important threat for apiculture in most bee-keeping areas of the world. The mite is carried to the bee brood cell, where it reproduces, by aExpand
Ticks and Lyme borreliosis in an alpine area in northeast Italy
A 2‐year study was conducted in a mountainous area of northeast Italy to evaluate the occurrence and distribution of ticks, as well as to assess the prevalence of the spirochaete Borrelia burgdorferiExpand
Reinfestation of an acaricide-treated apiary byVarroa jacobsoni Oud
The sources of reinfestation of a treated apiary byVarroa jacobsoni Oud. were studied in Friuli (North-Eastern Italy), in an area with a high density of colonies. Ten colonies, initiallyVarroa-free,Expand
Octanoic acid confers to royal jelly varroa-repellent properties
The mite Varroa destructor Anderson & Trueman is a parasite of the honeybee Apis mellifera L. and represents a major threat for apiculture in the Western world. Reproduction takes place only insideExpand
Semiochemicals from larval food affect the locomotory behaviour of Varroa destructor
The stimuli inducing cell invasion by Varroa destructorwere studied using a bioassay in which a mite was observed in a glass arena with four wells, each containing a live bee larva, treated or notExpand
A semiochemical from larval food influences the entrance of Varroa destructor into brood cells
Chemical stimuli responsible for the biological activity of bee larval food on Varroa destructor were studied both in the laboratory and under natural conditions. Loss of activity afterExpand