Proceedings of the International Symposium on Recent Research on Bee Pathology, September 5-7, 1990, Gent, Belgium PDF Download
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Author: W. Ritter
Publisher:
ISBN:
Category : Bees
Languages : en
Pages : 228
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Book Description
Author: W. Ritter
Publisher:
ISBN:
Category : Bees
Languages : en
Pages : 228
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Book Description
Author: Andrew Matheson
Publisher:
ISBN:
Category : Honeybee
Languages : en
Pages : 180
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Book Description
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 848
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Book Description
Author: Judith Principal de D'Aubeterre
Publisher:
ISBN:
Category : Varroa jacobsoni
Languages : en
Pages : 106
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Book Description
Aspects concerning the bionomics of the parasitic honey bee brood mite, Varroa jacobsoni Oudemans were investigated. Mite mortality is great during the winter season when the host colony is not rearing brood, appearing to be independent of the mortality of its host. In winter period, no significant association between the number of dead mites and the number of dead adult workers was observed. It appears that the mites are dying by factors other than the host death. Drifting drones facilitate the horizontal transmission of Varroa jacobsoni mites between colonies, especially in modern beekeeping in which managed colonies are kept similarly hived and close together. A great tendency of drones to drift among colonies was observed. A significant correlation was found in the rate of mites per drones and the number of drones in the colonies. It was concluded that the transmission of Varroa jacobsoni among colonies via drifting drones is a common mechanism for the transmission of mites. The relationship between mite load and the size of the honey bee brood host was investigated. The data showed significant statistical differences between the infestation rate of the mite that is, number of female mites per infested pupae and the size of the worker brood nest of its host. With a high number of worker cells in the colony, the mite load is lowered. Feeding activities of V. jacobsoni causes a great impact on A. mellifera colony survival not only through physical damage caused by this mite but also through transmission of various entomopathogenic agents responsible for the outbreak of secondary diseases in the colony. I concluded that mites fed on adult bees during summer time. It appears that the frequency of mite feeding on adult bees at this time is low, suggesting that probably the mite feeds only for maintenance and survival rather than for reproduction.
Author:
Publisher:
ISBN:
Category : Animals
Languages : en
Pages : 500
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Book Description
Author: Panuwan Chantawannakul
Publisher: ศูนย์บริหารงานวิจัย สำนักงานมหาวิทยาลัยเชียงใหม่
ISBN: 6163981871
Category : Technology & Engineering
Languages : en
Pages : 144
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Book Description
key pollinators honey bees, have been evolved for million years along with flowering plants. Asia is rich with species diversity and the bees are known to play vital roles in maintaining the the local fauna and sustain the agricultural crops to secure food sources for human consumption in the region, where the population continue to grow. Southeast Asia is regarded as a hot spot for scientists to study ecological interaction and co-evolution between hosts and parasites 9n different species of honey bees. The most serious and widespread bee pathogens and parasites today in the European honey bee are parasitic mites. nosema, kashmir bee virus which may have originated from Asian honey bees in South East Asia, More information on Asian honey bee health can also reflect the future threat in European honey bee worldwide especially when the global warming and fast transportation allow the prevalence and dissemination of tropics pathogens and parasites. This book aims to provide the current bee health status of honey bees in Asia which are now under emerging pressures from natural causes and human activities in modern society of globalization. Symbiotic relationships between living organisms and honey bees are also described
Author: Wyatt Alexander Mangum
Publisher:
ISBN:
Category :
Languages : en
Pages : 232
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Book Description
Author:
Publisher:
ISBN:
Category : Veterinary medicine
Languages : en
Pages : 1500
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Book Description
Author: International Organization for Biological Control of Noxious Animals and Plants
Publisher:
ISBN:
Category : Pests
Languages : en
Pages : 292
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Book Description
Author:
Publisher:
ISBN:
Category : International agencies
Languages : en
Pages : 1740
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Book Description
Edition for 1983/84- published in 3 vols.: vol. 1, Organization descriptions and index; vol. 2, International organization participation; vol. 3, Global action networks; edition for 2012/2013- published in 5 vols: vol. 4, International organization bibliography and resources; vol. 4, Statistics, visualizations & patterns.
