Results 41 to 50 of about 10,955 (176)
Iflaviruses in arthropods: when small is mighty
Many arthropod species harbor iflaviruses, which often cause covert (asymptomatic) infections, but may still affect host fitness. We review the impact of iflaviruses on arthropod fitness, immunity, behaviour as well as the iflavirus’ host range, transmission, tissue tropism and the interactions with other microorganisms within arthropods.
Annamaria Mattia +3 more
wiley +1 more source
Over the past fifty years, annual honeybee (Apis mellifera) colony losses have been steadily increasing worldwide. These losses have occurred in parallel with the global spread of the honeybee parasite Varroa destructor.
Fanny Mondet +4 more
doaj +1 more source
La investigación se realizó durante 5 semanas, evaluando distintos tratamientos con diferentes niveles de aceite de neem para controlar Varroa destructor en colmenas de abejas. Se utilizaron 4 tratamientos con aceite comercial de neem en concentraciones
Ángel Joel Yépez-Rosado +8 more
doaj +1 more source
Rapid hormonal rise in honey bees due to heat‐shock is mitigated by a primer pheromone
We show that honey bee foragers increased juvenile hormone (JH) titers significantly after heat‐shocked for 1 h at 40 °C, but this increase is dependent on social conditions. Increase of JH titers only happened when bees were isolated (one worker bee per vial) but not in groups.
Thomas Rachman, Zachary Y. Huang
wiley +1 more source
Environmental DNA Methods for Detection of Varroa destructor in Honey Bee (Apis mellifera) Hives
The parasitic mite, Varroa destructor, is a worldwide problem for honey bees (Apis mellifera). The recent spread of this pest to Australia, which was one of the few varroa‐free honey bee populations remaining, highlights the importance of effective ...
John M. K. Roberts +11 more
doaj +1 more source
The honey bee (Apis mellifera) parasitic mite, Varroa destructor, is considered one of the main causes of colony losses in European honey bee (EHB) populations around the world.
Ernesto Guzman-Novoa +12 more
doaj +1 more source
First comparative study in oxidative stress between wild bees and managed bees. Bees collected from organic landscapes exhibited the lowest OX levels. Pesticide profiles were different among landscapes. Abstract Oxidative stress (OX) is a state of imbalance between antioxidants and reactive oxygen species, which are the byproducts of oxidative ...
Keiana Briscoe +5 more
wiley +1 more source
ABSTRACT Honey bees (Apis mellifera) are vital pollinators in fruit‐producing agroecosystems like highbush blueberry (HBB) and cranberry (CRA). However, their health is threatened by multiple interacting stressors, including pesticides, pathogens, and nutritional changes.
Huan Zhong +25 more
wiley +1 more source
Целта на изследването е да се установи влиянието на мравчената киселина върху акара Varroa destructor, прилагана през пролетта при използване на инфрачервен нагревател в пчелния кошер.
Цветан Цветанов +2 more
doaj
The wild honeybee population of Europe is in decline: Evidence from monitoring studies
Studying the population trends of wild honeybees is possible when considering that managed and wild colonies form different subpopulations within regional honeybee metapopualtions. Abstract Populations of wild western honeybees (Apis mellifera) have been neglected because the species has been considered to consist of managed colonies only.
Patrick L. Kohl, Benjamin Rutschmann
wiley +1 more source

