title: [The effect of Varroa jacobsoni invasion on bee colonies with queens of different breeds in the fourth year of the disease].
abstract: The objective of the work was to determine the effect of invasion of Varroa jacobsoni on the bee colonies of different breeds in the fourth year of varrosis. It was found out that bee colonies which were not treated died in the fourth year of the disease, while treated ones were debilitated. The main loss concerned the bee colonies with augustonian and carnica queens. The most resistant were colonies with caucasian queens.
authors.affiliation: Katedra Parazytologii i Chorób Inwazyjnych AR-T, Olsztyn-Kortowo.
authors.forename: K
authors.initials: K
authors.lastname: Romaniuk
authors.forename: R
authors.initials: R
authors.lastname: Sokół
authors.forename: W
authors.initials: W
authors.lastname: Witkiewicz
mesh_terms: D000818:Animals; D001516:Bees / Q000276:immunology / Q000469:parasitology*; D006790:Host-Parasite Interactions; D007113:Immunity, Innate; D008925:Mites / Q000502:physiology*; D013045:Species Specificity
vernacular_title: Wpływ inwazji Varroa jacobsoni na rodziny pszczele z matkami róznych ras w czwartym roku trwania choroby.