Author: Saskatchewan Beekeepers Association
Publisher: [Regina] : Agriculture Research Branch
ISBN:
Category :
Languages : en
Pages : 10

View

Book Description

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 10

View

Book Description
American foulbrood is a disease of honeybee colonies caused by the bacterium Paenibacillus larvae. This report describes & presents results of a study to determine if honey samples could be used to indicate the presence of that disease. The study also inspected live bee colonies to look for colonies infected with American foulbrood. Any infections discovered & isolated were tested for resistance to the antibiotic oxytetracycline. Complications that arose with the honey screening technique are outlined and suggestions are made regarding improvements to the technique & for further research.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

View

Book Description
The distribution of Paenibacillus larvae spores, the causative agent of American foulbrood, was studied on three different levels in the honey bee system; the apiary level, the colony level and the individual honey bee level. The increased understanding of spore distribution has been used to give recommendations regarding sampling of adult honey bees. The vertical transmission of P. larvae spores through natural swarms has been described for the first time and artificial swarming as a method for control of American foulbrood have been evaluated. The results demonstrated that there is no practical difference in spore load between supers and brood chambers, and that the spore load in samples of adult honey bees on the different levels correspond to the clinical disease status of the colony. The study on individual bees showed that spores are unequally distributed among the bees and that as more bees get contaminated each positive bee also contains more spores. This may present a problem when sampling from colonies with low levels of clinical disease, although the study on colony and apiary level showed no false negatives. A model for calculating the number of bees that needs to be sampled to detect P. larvae in a composite sample of adult bees, given certain detection levels and proportions of positive honey bees in the sample, was developed The swarm study demonstrated vertical transmission of P. larvae spores. Furthermore, the artificial swarm study showed that single and double shaking are equally effective treatment methods, and that the original disease status is of little importance for the spore load decrease.

Author: Everett Franklin Phillips
Publisher:
ISBN:
Category : Bees
Languages : en
Pages : 24

View

Book Description
"European foulbrood is a disease of the brood of bees which has caused great losses to American beekeepers. It was first recognized as a distinct disease in the United States by New York beekeepers in 1894, but it has probably been present in the United States for a long time. It is important that the beekeeper know whether European or American foulbrood is in his apiary, for the two do not respond to the same treatment. In European foulbrood control the most important step is to prevent the entrance of the disease by keeping all colonies strong and by having all stock resistant to the disease. This can be done successfully even though the disease is in the neighborhood. In case, through failure to take all precautions, the disease does enter, there are certain practices by which the disease can be readily eliminated, but all of these must be sued with care. The facts about the disease on which the preventive and remedial measures are based are discussed in this bulletin." -- p. [2]

Author: National Research Council
Publisher: National Academies Press
ISBN: 0309102898
Category : Technology & Engineering
Languages : en
Pages : 327

View

Book Description
Pollinators-insects, birds, bats, and other animals that carry pollen from the male to the female parts of flowers for plant reproduction-are an essential part of natural and agricultural ecosystems throughout North America. For example, most fruit, vegetable, and seed crops and some crops that provide fiber, drugs, and fuel depend on animals for pollination. This report provides evidence for the decline of some pollinator species in North America, including America's most important managed pollinator, the honey bee, as well as some butterflies, bats, and hummingbirds. For most managed and wild pollinator species, however, population trends have not been assessed because populations have not been monitored over time. In addition, for wild species with demonstrated declines, it is often difficult to determine the causes or consequences of their decline. This report outlines priorities for research and monitoring that are needed to improve information on the status of pollinators and establishes a framework for conservation and restoration of pollinator species and communities.

Author: Frank Lincoln Thomas
Publisher:
ISBN:
Category : Bees
Languages : en
Pages : 20

View

Book Description

Author: Sandra Rosa Fuselli
Publisher:
ISBN: 9781536119862
Category : American foul brood
Languages : en
Pages : 0

View

Book Description
American foulbrood (AFB) is a severe bacterial disease that affects larvae of honey bees (Apis mellifera). The causative agent is the spore forming bacteria Paenibacillus larvae. The use of antibiotics has led to the appearance of resistant bacterial strains and residues in beehive products. Nowadays, antibiotics are legally banned in several countries, and the affected colonies have to be destroyed by burning the hives. Therefore, the development of alternative therapeuctic methods for the control and prevention of AFB is necessary. The present monograph reviews the traditional methods used for the control of AFB, and the natural strategies based on the application of essential oils, plant extracts, propolis, royal jelly, non-conventional natural molecules, bacteria and bacteriocines, assessed in vitro and in vivo for the prevention and control of P. larvae. This book also discusses the experimental data achieved from these studies, and intends to be a starting point for future research in the field.

Author: Sandra Ehrenberg
Publisher:
ISBN:
Category :
Languages : de
Pages :

View

Book Description
American and European foulbrood (AFB and EFB) are devastating bacterial brood diseases of honey bees (Apis mellifera), which cause colony and economic losses worldwide. The causative agent of AFB, Paenibacillus larvae, are grouped into different ERIC-genotypes (Enterobacterial repetitive intergenic consensus) the two most common of which are ERIC I and ERIC II. In the field, the differentiation between the symptoms of AFB and EFB (caused by Melissococcus plutonius) can be difficult. The differentiation between the ERIC-genotypes in the field based on the symptoms is not possible at all. The differentiation between the ERIC-genotypes of P. larvae during diagnosis can help to understand the spread of the AFB disease. Hence, a tool capable of detection and distinction between the bacterial brood diseases and the P. larvae-genotypes is needed. For the optimal prevention of disease spread, the diagnosis needs to be fast, cheap and reliable. This study focuses on the development of a diagnostic sandwich ELISA and a lateral flow device (LFD) for the detection and distinction of EFB and AFB, including the differentiation of the two main occurring P. larvae genotypes. The therefore necessary specific monoclonal antibodies (mAbs) were obtained by immunizing mice with M. plutonius or P. larvae strains belonging to either ERC I or ERIC II. The generated mAbs were characterized for their specificity towards the target bacteria and for their cross reactivity towards other bee-associated ...

Author: U S Department of Agriculture
Publisher:
ISBN: 9780359795017
Category :
Languages : en
Pages : 62

View

Book Description
Apiary inspectors and beekeepers must be able to recognize bee diseases and parasites and to differentiate the serious diseases from the less important ones. This handbook describes laboratory techniques used to diagnose diseases and other abnormalities of the honey bee and to identify parasites and pests. Emphasis is placed on the techniques used by the U.S. Department of Agriculture Bee Research Laboratory. Included are directions for submitting, through APHIS-PPQ or state regulators, samples of suspected Africanized honey bees for identification of subspecies. Also included are directions for sending diseased brood and adult honey bees for diagnosis of bee disease.

Author: Wolfgang Ritter (Bee pathologist)
Publisher: FAO
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 48

View

Book Description
Control of diseases and pests of honey bees is one of most challenging tasks in improving quality of honey and honey bee by-products, especially for the beekeepers in developing countries. This publication describes common diseases and pests of honey bees and their importance and provides a practical guide to the basic technology available to beekeepers for their control and prevention.