Now showing items 61-70 of 554
Effects of Natural Infestations of the Mite Varroa destructor on the Development of Africanized Honeybee Workers (Apis mellifera)
(California State University, 2011-01-01)
The mite Varroa destructor (Anderson & Treuman 2000) has caused extensive damage to beekeeping worldwide. In Brazil, weather conditions and the strains of bees do not provide ideal conditions for mite parasitism, which is ...
Nectar sugar composition and pollinators for the naturalized exotic Leonurus japonicus (Lamiaceae) in central Argentina
(The Society of Plant Reproductive Biologists, 2010-06)
Volumes of nectar and sugar concentration were measured in different populations of the naturalized exotic Leonurus japonicus Houtt. (Lamiacaea) in central Argentina. Qualitative and quantitative nectar sugar composition ...
Period and Time of Harvest Affects the Apitoxin Production in Apis mellifera Lineu (Hymenoptera: Apidae) Bees and Expression of Defensin Stress Related Gene
(Univ Estadual Feira Santana, 2015-03-01)
The aims of this study were to determine the period effects (morning and afternoon) and harvest time (30 and 60 minutes) in the apitoxin production as well as the management effects in the expression of a stress related ...
Susceptibility of Apis mellifera (Hymenoptera: Apidae) to pellitorine, an amide isolated from Piper tuberculatum (Piperaceae)
The acute toxicity of pellitorine, an amide isolated from Piper tuberculatum (Piperaceae) which is studied as a biopesticide in European corner borer, was evaluated on larvae and newly emerged adults of honeybee Apis ...
Influence of the collection methodology on the Apis mellifera venom composition: Peptide analysis
Differences of venom peptide composition as function of two collection methodologies, electrical stimulation (ES) and reservoir disruption (RD), were analyzed by reverse-phase HPLC in Apis mellifera races - A. m. adansonii, ...
Effect of Lactobacillus johnsonii CRL1647 on different parameters of honeybee colonies and bacterial populations of the bee gut
(Wageningen Academic Publishers, 2015-01)
Lactobacillus johnsonii CRL1647, isolated from the intestinal tract of a worker-bee in Salta, Argentina, was delivered to Apis mellifera L. honey bee colonies according to two different administration schedules: 1×105 ...
Produtividade de mel e comportamento defensivo como ??ndices de melhoramento gen??tico de abelhas africanizadas (Apis mellifera L.)
(Rev. Bras. Sa??de Prod. Anim., 2012)
Heritability of the number of ovarioles in honey bee workers (Apis mellifera L.) (hym.:apidae)
Narrow and broad sense heritabilities (h2) of the number of ovarioles in Apis mellifera L. workers were estimated using two distinct data sets, based on groups of half (queens inseminated by several drones) and super-sisters ...