The mite Varroa jacobsoni does not transmit American foulbrood from infected to healthy colonies

The present study was conducted to determine whether Varroa jacobsoni can transmit American foulbrood (AFB), caused by the bacterium Paenibacillus larvae to healthy colonies by the surface transport of spores. Five two-storey Langstroth colonies of Apis mellifera ligustica were infested by placing a...

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Detalles Bibliográficos
Autores principales: Alippi, Adriana Mónica, Albo, Graciela Noemí, Marcangeli, Jorge Augusto, Leniz, Daniel, Noriega, Alicia E.
Formato: Articulo Comunicacion
Lenguaje:Inglés
Publicado: 1995
Materias:
Ciencias Agrarias
American foulbrood
Paenibacillus larvae
Varroa jacobsoni
Spores
honey bees
Apis mellifera
SEM
Varroosis
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/131226
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-131226
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
American foulbrood
Paenibacillus larvae
Varroa jacobsoni
Spores
honey bees
Apis mellifera
SEM
Varroosis
spellingShingle Ciencias Agrarias
American foulbrood
Paenibacillus larvae
Varroa jacobsoni
Spores
honey bees
Apis mellifera
SEM
Varroosis
Alippi, Adriana Mónica
Albo, Graciela Noemí
Marcangeli, Jorge Augusto
Leniz, Daniel
Noriega, Alicia E.
The mite Varroa jacobsoni does not transmit American foulbrood from infected to healthy colonies
topic_facet Ciencias Agrarias
American foulbrood
Paenibacillus larvae
Varroa jacobsoni
Spores
honey bees
Apis mellifera
SEM
Varroosis
description The present study was conducted to determine whether Varroa jacobsoni can transmit American foulbrood (AFB), caused by the bacterium Paenibacillus larvae to healthy colonies by the surface transport of spores. Five two-storey Langstroth colonies of Apis mellifera ligustica were infested by placing a sealed brood comb, with 10% Varroa prevalence, between the central brood combs of each colony. Two months later the colonies were inoculated with P. larvae by adding brood comb pieces with clinical signs of AFB (45±5 scales per colony). After 60 days the brood area was completely uncapped by means of dissecting needles and tweezers, separating the Varroa mites from the larvae and the collected mites were introduced at a rate of 51 per colony into four recipient hives placed in an isolated apiary. Twenty female Varroa specimens were separated at random and observed by SEM. Paenibacillus larvae spores were found on the dorsal shield surface and on idiosomal setae. All colonies died after 4–5 months due to a high incidence of varroosis. No clinical AFB symptoms or P. larvae spores were observed in microscopic preparations. It is concluded that Varroa jacobsoni does not transmit AFB from infected to healthy colonies; it does, however transport P. larvae spores on its surface.
format Articulo
Comunicacion
author Alippi, Adriana Mónica
Albo, Graciela Noemí
Marcangeli, Jorge Augusto
Leniz, Daniel
Noriega, Alicia E.
author_facet Alippi, Adriana Mónica
Albo, Graciela Noemí
Marcangeli, Jorge Augusto
Leniz, Daniel
Noriega, Alicia E.
author_sort Alippi, Adriana Mónica
title The mite Varroa jacobsoni does not transmit American foulbrood from infected to healthy colonies
title_short The mite Varroa jacobsoni does not transmit American foulbrood from infected to healthy colonies
title_full The mite Varroa jacobsoni does not transmit American foulbrood from infected to healthy colonies
title_fullStr The mite Varroa jacobsoni does not transmit American foulbrood from infected to healthy colonies
title_full_unstemmed The mite Varroa jacobsoni does not transmit American foulbrood from infected to healthy colonies
title_sort mite varroa jacobsoni does not transmit american foulbrood from infected to healthy colonies
publishDate 1995
url http://sedici.unlp.edu.ar/handle/10915/131226
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