2012•Pakistan Journal of ZoologyRequires access

Control of ectoparasitic mites in honeybee (Apis mellifera L.) colonies by using thymol and oxalic acid.

Rashid Mahmood, E. S. Wagchoure, Atta-ul-Mohsin, Shazia Raja, Ghulam Sarwar

Abstract

A study was carried out to determine the effects of thymol (powdered form) with 3.2% oxalic acid (OA) on two ectoparasitic mites, Varroa destructor Anderson and Trueman (Acari:Varroidae) and Tropilaelaps clareae Delfinado and Baker (Laelapidae: Acrina) populations in honeybee Apis mellifera linguistica (Hymenoptera: Apidae) colonies in the fall. Thymol 2, 4 and 6 g with 3.2% OA applied to twenty honeybee colonies thrice on different dates, showed 26, 41, 36% mortality in T. clareae and 93, 99 and 94% mortality in V. destructor, respectively. The results showed that 3.2% OA with 4g thymol was the best treatment for controlling these mites. No queens were lost, and there was no adult honeybee mortality in any of the colonies during the experiment.

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Key concepts: Varroa destructor, Thymol, Acari, Biology, Acaricide, Oxalic acid, Mite, Destructor