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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ)   2007 , Volume 17 , Number 1; Page(s) 165 To 171.
 
Paper: 

THE COMPARISON OF THYMOL, MENTHOL AND PERIZIN ON VARROA MITE (VARROA DESTRUCTOR) IN DEHBAKRI REGION OF KERMAN PROVINCE, IRAN

 
 
Author(s):  EBRAHIMI M.V., NABIAN S., TAHMASEBI GH.H.*, BAHREYNI R.
 
* ANIMAL SCIENCE RESEARCH INSTITUTE, KARAJ, IRAN
 
Abstract: 

In order to evaluate the effects of Menthol (94-96%) and Thymol (99%) on varroa mite and their comparison with the effect of a chemical drug as prizin (Comaphus 3.2%), experiments were conducted in cold region of dehbakri Kerman province during years 2000 to 2002. Thirty two honeybee colonies were divided into 8 treatment groups, each with four replications in a completely ranodomized design. The groups were treated for 28 days with comaphus (Perrizin), crystal menthol (94-96%) 20, 35 and 50 treatments, Thymol (99%) 0.25., 0.5., and 1 g/lit, in 50% sugar syrup, and control (without any miticide). The effects of treatments on the honeybee queen death and worker mortality were also studied. The percentage mite mortality due to experimental treatments was determined using the sticky board method. Total mite mortality in the treatment over the 3- years period was 85.86% in the perizin group, 68.57% in Thymol 1 g/lit, 65.78% in Thymol 0.5 g/lit , 62.06% in crystal menthol 20 grams, 45.68 % in crystal menthol 35 g/lit , 45.37% in crystal menthol 20 grams, 45.34% in Thymol 0.25 g/lit, and 5.97% in the control. Mite mortality percentage was higher in the perizin group than in all of other treatments and control. But none of the Thymols, 50 grams of crystal menthol 35 grams of crystal menthol differed significantly from one another. There were not any queen deaths or noticeable adult and brood worker mortality in the treatments. Therefore, due to the lack of significant differences between above mentioned treatments, low expenses, and lower probability of new resistance, use of crystal menthol (35 grams) against Varroa destructor in the honeybee colonies of cold regions, such as rehbacri was suggested.

 
Keyword(s): HONEYBEE, MENTHOL, THYMOL, VARROA MITE
 
References: 
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