Please use this identifier to cite or link to this item: http://hdl.handle.net/10198/5663
Title: How challenging to apivar field treatments are amitraz-tolerant varroa populations?
Authors: Pires, Sância
Maia, Miguel
Pereira, Óscar
Issue Date: 2007
Publisher: Apimondia
Citation: Pires, Sância; Maia, Miguel; Pereira, Óscar (2007) - How challenging to apivar field treatments are amitraz-tolerant varroa populations? In 40th Apimondia International Apicultural Congress. Melbourne
Series/Report no.: Nº 209;
Abstract: Portuguese beekeepers depending on blind and repeated use of amitraz in fighting Varroa have meant a selection pressure towards amitraz-tolerant Varroa populations. Some of these Varroa populations were recently pin pointed during a nationwide monitoring effort (by field and laboratory testing), allowing for investigating the practical meaning such increased levels of tolerance have to properly applied Apivar field treatments and how quickly those populations regress to normal levels of susceptibility to amitraz.
Peer review: yes
URI: http://hdl.handle.net/10198/5663
Publisher Version: www.apimondia2007.com
Appears in Collections:CA - Resumos em Proceedings Não Indexados ao ISI/Scopus

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