Fecha/hora: 06/06/2024 13:21:36

Biblioteca(s): | INIA Las Brujas.
Fecha corriente: | 29/01/2020
Fecha de la última actualización: | 29/01/2020
Autoria: | INVERNIZZI, CIRO; NOGUEIRA, E.; JURI, P.; SANTOS, E.; ARREDONDO, D.; BRANCHICCELA, B.; MENDOZA, Y.; ANTÚNEZ, K.
Afiliación: | CIRO INVERNIZZI, Sección Etología, Instituto de Biología, Facultad de Ciencias, Montevideo, Uruguay; ENRIQUE NOGUEIRA, Instituto de Producción Animal, Facultad de Veterinaria, Montevideo, Uruguay; PABLO JURI, Instituto de Producción Animal, Facultad de Veterinaria, Montevideo, Uruguay; ESTELA SANTOS, Instituto de Producción Animal, Facultad de Veterinaria, Montevideo, Uruguay; DANIELA ARREDONDO, Laboratorio de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay; MARIA BELEN BRANCHICCELA CORREA, Laboratorio de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay; YAMANDU MENDOZA SPINA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; KARINA ANTÚNEZ, Laboratorio de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.
Título: | Epormenis cestri secretions in Sebastiania schottiana trees cause mass death of honey bee Apis mellifera larvae in Uruguay.
Año de publicación: | 2018
Fuente/Imprenta: | PLoS ONE, January 2018, Volume 13, Issue 1, Article number e0190697. OPEN ACCESS. Doi: 10.1371/journal.pone.0190697
ISSN: | 1932-6203
DOI: | 10.1371/journal.pone.0190697
Idioma: | Inglés
Notas: | Article history: Published: January 9, 2018.

Contenido:

ABSTRACT.
For more than 60 years, sporadic cases of massive summer honey bee larvae mortality in colonies located near freshwater systems with abundant riparian vegetation have been reported in Uruguay. This odd phenomenon, known as ?River disease? by beekeepers, can lead to colony death by depopulation. The aim of this study was to detect the causes of larvae death. Different experiments and analyses were performed using affected apiaries located between two important water courses. 1 day old larvae were the most susceptible and substances that killed the larvae were present in the nectar but not in the pollen. A palynological analysis of nectar samples showed that bees collect this resource from commonly pollinated floral species in the country. However, abundant fungi spores and conidia were found, which indicates that the bees also collected honeydews. In the riparian vegetation, bees were observed collecting the secretions of the planthopper Epormenis cestri on Sebastiania schottiana trees. It was found that the mortality period of larvae overlaps with the presence of E. cestri. Larvae maintained in the laboratory were fed (i) nectar from healthy colonies, (ii) nectar from affected colonies, and (iii) secretions of E. cestri. The mortality of the larvae that received nectar from colonies affected with River disease and secretions of E. cestri was higher than the mortality of those receiving nectar from healthy colonies. This represents the first report of planthopper honeydew causing mass larval mortality in honey bees. © 2018 Invernizzi et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Palabras-Clave: | Apis Mellifera Larvae; Epormenis Cestri.
Categoría del tema: | --
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/14090/1/101371journalpone0190697.pdf
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (102128-1) - PXI - AP - DD - PP/PlosONE/2018 -  -  - DIS