Results 21 to 30 of about 79,436 (293)
Honey Bee Queens and Virus Infections
Viruses, 2020 The honey bee queen is the central hub of a colony to produce eggs and release pheromones to maintain social cohesion. Among many environmental stresses, viruses are a major concern to compromise the queen’s health and reproductive vigor.
Esmaeil Amiri +3 more
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Body size and sperm quality in queen‐ And worker‐produced ant males [PDF]
Journal of Evolutionary Biology, 2020 Abstract Workers of many species of social Hymenoptera have functional ovaries and are capable of laying haploid, unfertilized eggs, at least in the absence of a queen. Except for honeybees, it remains largely unknown whether worker‐produced males have the same quality as queen‐produced males and whether workers ...
Giehr, Julia +3 more
openaire +3 more sources
Animals, 2021 The quality of the honeybee queen has an important effect on a colony’s development, productivity, and survival. Queen failure or loss is considered a leading cause for colonies’ mortality worldwide.
Elena Facchini +7 more
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Control agents on the quality of Africanized honeybee queens
Semina: Ciências Agrárias, 2020 The objective of this study was to evaluate the effect of the entomopathogenic fungus Beauveria bassiana, used in large field crops, and of the pomegranate Punica granatum aqueous extract, with insecticidal potential for insect control, on the quality of Africanized Apis mellifera queens.
Michele Potrich +7 more
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SOME FACTORS AFFECTING THE QUALITY OF ARTIFICIALLY REARED Apis mellifera L. QUEENS WITHIN HONEYBEE NURSING COLONIES [PDF]
Journal of Plant Protection and Pathology, 2007 This study was carried out to investigate the quantity (as % of accepted larvae, sealed queen cells and emerged queens) and quality (as weight of queen at emergence) of queen honeybees as affected by some environmental factors related to rearing process ...
Nora Mohamed +2 more
doaj +1 more source
Frontiers in Ecology and Evolution, 2021 Recent work demonstrated that honey bee (Apis mellifera L.) queens reared in pesticide-laden beeswax exhibit significant changes in the composition of the chemicals produced by their mandibular glands including those that comprise queen mandibular ...
Elizabeth M. Walsh +6 more
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The influence of feed quality on the development and productivity of bee queens
Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies, 2021 The research aimed to study the effect of additional protein feeding of foster families with buckwheat stalks. The research was conducted during the summer period in 2020 and 2021. Ten foster families were selected for the experiment. All families are chosen by the method of analogs. Bees were kept in beehives.
A. Druzhbiak +4 more
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Journal of Apicultural Science, 2018 This study aims to investigate the effect of queen cell size (9.4 mm, 9.6 mm, 9.8 mm and 10.0 mm) and mother queen caged time (0 day, 2 days and 4 days) on rearing young queens without grafting larvae.
Wu Xiaobo +3 more
doaj +1 more source
, 2020 Les objectifs de ce projet étaient de développer des indicateurs précoces et non invasifs de qualité des reines d’abeilles. En parallèle, il a donc procédé (1) au développement d’un outil d’enregistrement de l’activité des reines dans la ruche ainsi qu’au (2) test de la pertinence de différents indicateurs simples (poids, dynamique de colonies) en lien
Basso, Benjamin +9 more
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SOME ENVIRONMENTAL FACTORS AFFECTING THE QUALITY OF ARTIFICIALLY REARED QUEENS, (APJS MELLIFERA L.) IN NORTH SINAI REGION, EGYPT [PDF]
Journal of Plant Protection and Pathology, 2003 Queen rearing was conducted under North Sinai cooditions to determine the effect of some environmental factors on certain biological and biometrical characters of the produced queens during two successive years.
H. Mahfouz +2 more
doaj +1 more source