Rasoul Bahreini

Crop Diversification Center North, Edmonton, AB, Canada

BACKGROUND Varroa mite, Varroa destructor, is a major threat for honey bee, Apis mellifera, colonies. Beekeepers have used synthetic Varroacides against Varroa mite for decades, but resistance to organophosphates, pyrethroids and formamidine has been reported in many locations worldwide. The goals of this study were to develop a reliable bioassay t...

Nosema ceranae Fries, 1996, causes contagious fungal nosemosis disease in managed honey bees, Apis mellifera L. It is associated around the world with winter losses and colony collapse disorder. We used a laboratory in vivo screening assay to test curcumin, fenbendazole, nitrofurazone and ornidazole against N. ceranae in honey bees to identify nove...

Genetic parameters were estimated in a base and closed population of Iranian honeybee colonies. Data were obtained on 500-700 Iranian native population of honeybee colonies (honeybee breeding project in central region of Iran) subject to 9 successive generation of selection. These populations had been selected for honey production, swarming behavio...

The objectives of this study were to quantify the costs and benefits of co-parasitism with Varroa (Varroa destructor Anderson and Trueman) and Nosema (Nosema ceranae Fries and Nosema apis Zander) on honey bees (Apis mellifera L.) with different defense levels. Newly-emerged worker bees from either high-mite-mortality-rate (high-MMR) bees or low-mit...

The objective of this study was to assess the effectiveness of a cooperative breeding program designed to enhance winter survival of honey bees ( Apis mellifera L.) when exposed to high levels of varroa ( Varroa destructor Anderson and Trueman) in outdoor-wintered and indoor-wintered colonies. Half of the colonies from selected and unselected stock...

The objective of this study was to manipulate ventilation rate to characterize interactions between stocks of honey bees (Apis mellifera L.) and ventilation setting on varroa mite (Varroa destructor Anderson and Trueman) mortality in honey bee colonies kept indoors over winter. The first experiment used colonies established from stock selected loca...

The objective of this study was to assess the effects of honey bees (Apis mellifera L.) with different grooming ability and queen pheromone status on mortality rates of Varroa mites (Varroa destructor Anderson and Trueman), mite damage, and mortality rates of honey bees. Twenty-four small queenless colonies containing either stock selected for high...

This study aimed to isolate and identify Lactobacillus in the honey stomach of honeybee Apis dorsata. Samples of honeybee were collected from A. dorsata colonies in different bee trees and Lactobacillus bacteria isolated from honey stomachs. Ninety two isolates were Gram-stained and tested for catalase reaction. By using bacterial universal primers...

Morphological characters of Apis mellifera meda sampled from Urmia, Tehran and Tabriz in Iran, Apis mellifera anatoliaca from Kirsehir and Beypazari in Central Anatolia, and Apis mellifera caucasica from Posof in Northeast Anatolia were analysed using standard morphometric methods. Sixteen morphometric measurements were made on 20 worker bees each...

Morphological characters of Apis mellifera meda sampled from Urmia, Tehran and Tabriz in Iran, Apis mellifera anatoliaca from Kirsehir and Beypazari in Central Anatolia, and Apis mellifera caucasica from Posof in Northeast Anatolia were analysed using standard morphometric methods. Sixteen morphometric measurements were made on 20 worker bees each...

European honey bee (Apis mellifera) colonies infested with varroa (Varroa destructor) were used to compare the effect of treatment with tau-fluvalinate (Apistan®) and formic acid (65%) during a 3-year period from 1998 to 2000. Twenty colonies were divided into 5 treatment groups, each with 4 replications. The groups were treated with either tau-flu...

An extensive survey of colonies of the honey-bee, Apis mellifera, was conducted from December 1991 to February 1993 for the presence of both internal and external Acarapis mites in 21 provinces of Iran. Ten apiaries from each province and 5 hives/apiary were randomly selected for examination. A. woodi (R.) was found in 19 of the 139 apiaries sample...