New Miticides for Integrated Pest Management of Varroa destructor (Acari: Varroidae) in Honey Bee Colonies on the Canadian Prairies

2014 ◽  
Vol 107 (6) ◽  
pp. 2030-2036 ◽  
Author(s):  
L. P. Vandervalk ◽  
M. E. Nasr ◽  
L. M. Dosdall
Keyword(s):  
Integrated Pest Management ◽  
Pest Management ◽  
Honey Bee ◽  
Varroa Destructor ◽  
Canadian Prairies ◽  
Bee Colonies

scholarly journals Safety assessment of sugar dusting treatments by analysis of hygienic behavior in honey bee colonies

2011 ◽  
Vol 63 (4) ◽  
pp. 1199-1207 ◽  
Author(s):  
Jevrosima Stevanovic ◽  
Z. Stanimirovic ◽  
Nada Lakic ◽  
Nevenka Aleksic ◽  
P. Simeunovic ◽  
...  
Keyword(s):  
Pest Management ◽  
Honey Bee ◽  
Honey Bees ◽  
Varroa Destructor ◽  
Safety Assessment ◽  
Defense Mechanism ◽  
Management Strategies ◽  
Hygienic Behavior ◽  
Natural Defense ◽  
Bee Colonies

The hygienic behavior in honey bees is a dominant natural defense mechanism against brood diseases. In this study, the influence of sugar dusting treatments on hygienic behavior was evaluated in 44 strong honey bee colonies. Three doses of pulverized sugar, 20, 30 and 40 g, each applied at three-, seven- and fourteen-day intervals were tested. The percentage of cleaned cells (PCC) in the total number of those with pin-killed brood served as a measure of the hygienic potential. The effect was dependent on the frequency of treatments: all doses applied every third and seventh day significantly (p<0.001) decreased the PCC in comparison with the untreated control colonies. Nevertheless, sugar did not threaten the hygienic potential, as PPC values remained above 94% following all treatments. Thus, it can be concluded that the tested sugar treatments are safe and can be justifiably implemented into integrated pest management strategies to control Varroa destructor.

scholarly journals Winter Survival of Individual Honey Bees and Honey Bee Colonies Depends on Level of Varroa destructor Infestation

PLoS ONE ◽  
2012 ◽  
Vol 7 (4) ◽  
pp. e36285 ◽  
Author(s):  
Coby van Dooremalen ◽  
Lonne Gerritsen ◽  
Bram Cornelissen ◽  
Jozef J. M. van der Steen ◽  
Frank van Langevelde ◽  
...  
Keyword(s):  
Honey Bee ◽  
Honey Bees ◽  
Varroa Destructor ◽  
Winter Survival ◽  
Bee Colonies

scholarly journals The effect of the queen's age on the Varroa mite (Varroa destructor) burden of honey bee (Apis mellifera L.) colonies

2018 ◽  
pp. 83-87
Author(s):  
Marianna Takács ◽  
János Oláh
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Varroa Destructor ◽  
Early Spring ◽  
Brood Chamber ◽  
One Year ◽  
The One ◽  
Post Hoc ◽  
Bee Colonies ◽  
Mite Mortality

An apiary trial was conducted in 2016 August to October in Szabolcs-Szatmár-Bereg County, Nyírmada to evaluate the influence of queen’s age on the Varroa destructor-burden in the treatment colonies. Sixty colonies of bees belonging to the subspecies Apis mellifera carnica pannonica in Hunor loading hives (with 10 frames in the brood chamber/deep super) were used. The colonies were treated with amitraz and the organophosphate pesticide coumaphos active ingredients. The amitraz treatment includes 6 weeks. The coumaphos treatment with Destructor 3.2% can be used for both diagnosis and treatment of Varroasis. For diagnosis, one treatment is sufficient. For control, two treatments at an interval of seven days are required. The colonies were grouped by the age of the queen: 20 colonies with one-year-old, 20 colonies with two-year-old and 20 colonies with three-year-old queen. The mite mortality of different groups was compared. The number of fallen mites was counted at the white bottom boards. The examination of spring growth of honey bee colonies has become necessary due to the judgement of efficiency of closing treatment. The data was recorded seven times between 16th March 2017 and 19th May 2017. Data on fallen mites were subjected to one-way analysis of variance (ANOVA) and Post-Hoc Tukey-test. Statistical analysis was performed using the software of IBM SPSS (version 21.). During the first two weeks after treatments, the number of fallen mites was significantly higher in the older queen’s colonies (Year 2014). The total mite mortality after amitraz treatment in the younger queen’s colonies was lower (P<0.05) compared to the three-year-old queen’s colonies. According to Takács and Oláh (2016) although the mitemortality tendency, after the coumaphos (closing) treatment in colonies which have Year 2014 queen showed the highest rate, considering the mite-burden the colonies belongs to the average infected category. The colonial maintenance ability of three-year-old queen cannot be judged based on the influencing effect on the mite-burden. The importance of the replacement of the queen was judged by the combined effect of several factors. During the spring-growth study (16th March–19th May) was experienced in the three-year-old queen’s colonies the number of brood frames significantly lower compared to the one- and two-year-old queen’s colonies. In the study of 17th April and 19th May each of the three queen-year-groups were varied. Therefore in the beekeeping season at different times were determined the colonial maintenance ability of queens by more factors: efficiency of closing treatment in early spring, the spring-growth of bee colonies, the time of population shift (in current study, this time was identical in each queen-year), honey production (from black locust).

scholarly journals Comparative testing of different methods for evaluation of Varroa destructor infestation of honey bee colonies

2011 ◽  
Vol 43 (3) ◽  
pp. 323
Author(s):  
Nikolay D. Dobrynin ◽  
Mario Colombo ◽  
Francesca Romana Eördegh
Keyword(s):  
Honey Bee ◽  
Varroa Destructor ◽  
Comparative Testing ◽  
In Vivo Evaluation ◽  
Bee Colonies

Different methods for evaluation of the degree of Varroa destructor infestation of honey bee colonies were tested. The methods using in vivo evaluation were the most sparing for the bees but less precise. The methods using evaluation with the killing of the bees or brood were the most precise but less sparing for bees.

Control of the mite Varroa destructor in honey bee colonies

2003 ◽  
Vol 14 (2) ◽  
pp. 80-84 ◽  
Author(s):  
Klaus Wallner ◽  
Ingemar Fries
Keyword(s):  
Honey Bee ◽  
Varroa Destructor ◽  
Bee Colonies

scholarly journals Population growth of Varroa destructor (Acari: Varroidae) in honey bee colonies is affected by the number of foragers with mites

2016 ◽  
Vol 69 (1) ◽  
pp. 21-34 ◽  
Author(s):  
Gloria DeGrandi-Hoffman ◽  
Fabiana Ahumada ◽  
Victor Zazueta ◽  
Mona Chambers ◽  
Geoffrey Hidalgo ◽  
...  
Keyword(s):  
Population Growth ◽  
Honey Bee ◽  
Varroa Destructor ◽  
Bee Colonies

β-Cyclodextrins as Carriers of Monoterpenes into the Hemolymph of the Honey Bee (Apis mellifera) for Integrated Pest Management

2008 ◽  
Vol 56 (18) ◽  
pp. 8565-8573 ◽  
Author(s):  
Blaise W. LeBlanc ◽  
Stephen Boué ◽  
Gloria De-Grandi Hoffman ◽  
Thomas Deeby ◽  
Holly McCready ◽  
...  
Keyword(s):  
Apis Mellifera ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Honey Bee
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