Control of Varroa destructor mites in capped worker brood cells by using formic acid and thymol in africanized honey bee colonies under tropical conditions. A technical note

por Ramírez, Marianyela, Calderón, Rafael A.
Publicado 2017

Small hive beetle, Aethina tumida, situation in africanized honey bees (Apis mellifera) colonies in Costa Rica: Sampling of apiaries 2014-2017

por Ramírez, Marianyela, Calderón, Rafael A.
Publicado 2018

Behaviour of the Varroa destructor mite in worker brood cells of Africanized honey bees (Apis mellifera)

por Calderón, Rafael A., Fallas, Natalia, Ramírez, Marianyela
Publicado 2017

Preliminary study on the presence of bee diseases in swarms of Africanized honey bees (Apis mellifera) in different areas of Costa Rica

por Calderón, Rafael A., Padilla, Sergio, Ramírez, Marianyela
Publicado 2019

Efectividad del ácido fórmico y el timol en el control del ácaro Varroa destructor en colmenas de abejas africanizadas

por Calderón, Rafael A., Ramírez, Marianyela, Ramírez, Fernando, Villalobos, Ethel
Publicado 2014

Prevalence of Nosema spp. (Microsporidia: Nosematidae) in Africanized Honeybees in Atenas, Costa Rica: Number of Spores and Infection Level During the Rainy Season

por Moreno, Eduardo, Calderón, Rafael A., Ramírez, Marianyela, Van Veen, Johan
Publicado 2021