Results 171 to 180 of about 2,059 (187)
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Journal of Economic Entomology, 2003
We evaluated three concentrations of tebufenpyrad (17.5, 15 and 12.5%) in strip formulations for controlling varroa mites, Varroa destructor Anderson and Trueman (2000), in honey bee colonies. We also included colonies treated with Apistan, CheckMite+, and untreated colonies in our evaluation.
M A, Ali, P A, Macedo, J, Wu, M D, Ellis
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We evaluated three concentrations of tebufenpyrad (17.5, 15 and 12.5%) in strip formulations for controlling varroa mites, Varroa destructor Anderson and Trueman (2000), in honey bee colonies. We also included colonies treated with Apistan, CheckMite+, and untreated colonies in our evaluation.
M A, Ali, P A, Macedo, J, Wu, M D, Ellis
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2023
A detailed description of the oocytes ripe??ning processes, blastulation, gastrulation and organogenesis is presented. Organogenetic process is divided in four essential stages: early tissues differentiation, prelarval morpho??genesis, larval morphogenesis, protonymphal morphogenesis.
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A detailed description of the oocytes ripe??ning processes, blastulation, gastrulation and organogenesis is presented. Organogenetic process is divided in four essential stages: early tissues differentiation, prelarval morpho??genesis, larval morphogenesis, protonymphal morphogenesis.
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2023
A detailed description is given to internal and external chelicerae muscles, pedipalp muscles, a complex of pharynx muscles, tritosternum muscle. Chelicera protractor muscles are not found. It is shown that specialization of the mite to feed on bee haemolymph induces no essential rearrangements in the muscular system of the gnathosoma.
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A detailed description is given to internal and external chelicerae muscles, pedipalp muscles, a complex of pharynx muscles, tritosternum muscle. Chelicera protractor muscles are not found. It is shown that specialization of the mite to feed on bee haemolymph induces no essential rearrangements in the muscular system of the gnathosoma.
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Survival ofVarroa jacobsoni Oud. (Acari: Varroidae) away from its living hostApis mellifera L.
Experimental & Applied Acarology, 1993Mite survival was measured on eight different substrates: cloth, wax comb, dead drones, dead workers, metal, wood, pollen and control. Trials were conducted at both 26°C and 13°C. Substrate type, temperature and their interactions significantly affected the survival ofV. jacobsoni.
Lilia I. De Guzman +2 more
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Journal of Economic Entomology, 1983
The longevity of normal and varroa-infested Africanized honey bees, Apis mellifera L., was compared. The degree of infestation was determined by counting the adult and deutonymphal female mites present in the brood cell when the adult bee emerged. Uninfested control bees lived an average of 27.6 days; infested bees lived only 13.6.
David De Jong, Paula H. De Jong
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The longevity of normal and varroa-infested Africanized honey bees, Apis mellifera L., was compared. The degree of infestation was determined by counting the adult and deutonymphal female mites present in the brood cell when the adult bee emerged. Uninfested control bees lived an average of 27.6 days; infested bees lived only 13.6.
David De Jong, Paula H. De Jong
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PALPAL TARSAL SENSILLA OF THE FEMALE MITE, VARROA JACOBSONI OUDEMANS (ACARI: VARROIDAE)
The Canadian Entomologist, 1990AbstractThe structure, distribution, and type of sensory hairs on the palptarsus of female Varroa jacobsoni Oudemans were examined by scanning electron and phase contrast microscopy. The two large, peg-like setae with apical pores are chemoreceptor sensilla chaetica. The seven slender, round tipped setae, stained with crystal violet at the hair cuticle,
T.P. Liu, Ying-Shin Peng
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Stato delle ricerche su Varroa jacobsoni Oudemans (Acari: Varroidae)
1993Varroasis is caused by the parasitic mite Varroa jacobsoni Oud. and is a very important pathology for Apis mellifera. This disease was restricted to the Asian South-East until the end of the fifties; nevertheless, during the last decades it rapidly spread, becoming in a short time a world-wide problem for apiculture.
CARLI, ANNA MARIA +1 more
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2009
?????????????????????? ???????????????? ???????????????????????? ?????????? Varroa destructor Anderson et Trueman, 2000, ?????????????????????????????? ?? ???????????? ?????????????????? ???????????????? ????????. ???????????? ?????????????????? ???????????? ???????????????????? ???? ???????????? ???????????????? ?????????????????? ?????????????????????
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?????????????????????? ???????????????? ???????????????????????? ?????????? Varroa destructor Anderson et Trueman, 2000, ?????????????????????????????? ?? ???????????? ?????????????????? ???????????????? ????????. ???????????? ?????????????????? ???????????? ???????????????????? ???? ???????????? ???????????????? ?????????????????? ?????????????????????
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2014
A comparative analysis of morphological anomalies in seasonal and regional samples of Varroa destructor Anderson and Trueman, 2000 was conducted. It was found, that the abnormality rate of most morphological characters increases from spring to summer and, conversely, decreases from autumn to winter.
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A comparative analysis of morphological anomalies in seasonal and regional samples of Varroa destructor Anderson and Trueman, 2000 was conducted. It was found, that the abnormality rate of most morphological characters increases from spring to summer and, conversely, decreases from autumn to winter.
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2009
The study of seasonal variability of mite V. destructor was carried out. The summer generation of mites appears to be characterized by the largest morphological variability whereas the winter one has stable characters. We failed to evolve the complex of morphological characters that would allow us to identify, with high level of reliability, certain ...
Akimov, I.A. +2 more
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The study of seasonal variability of mite V. destructor was carried out. The summer generation of mites appears to be characterized by the largest morphological variability whereas the winter one has stable characters. We failed to evolve the complex of morphological characters that would allow us to identify, with high level of reliability, certain ...
Akimov, I.A. +2 more
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