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Hmmmm.
Anyone care to elaborate?
Occurrence and Distribution of Varroa Mite and Antivarroa Effect of Propolis in Walmara District of Oromia Special Zone Around Finfine, Ethiopia
https://www.academia.edu/27745720/O...d_Finfine_Ethiopia?email_work_card=view-paper
Anyone care to elaborate?
https://www.academia.edu/27745720Effect of Propolis against Varroa Mite has been investigated and showed lethal effect. Propolis extracted with 70% ethanol was found to be highly toxic, at 20% (w/v) of propolis resulting in 94.44% mortality with a brief contact time of 5 sec.
Occurrence and Distribution of Varroa Mite and Antivarroa Effect of Propolis in Walmara District of Oromia Special Zone Around Finfine, Ethiopia
https://www.academia.edu/27745720/O...d_Finfine_Ethiopia?email_work_card=view-paper