Fipronil is a slow acting central nervous system toxin in insects.  It has a soil half life of several months so could be effective as a ground drench around hives for beetles I suppose.  It is highly toxic to bees, some birds and some fish.  It is modestly toxic to mammals.  It was blamed as a contributor to CCD by the French.  Not something I would use around my bees personally.

Dick


" Any discovery made by the human mind can be explained in its essentials to the curious learner."  Professor Benjamin Schumacher talking about teaching quantum mechanics to non scientists.   "For every complex problem there is a solution which is simple, neat and wrong."  H. L. Mencken


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On Thu, 4/28/16, E.t. Ash <[log in to unmask]> wrote:

 Subject: [BEE-L] Have you heard of people using Fipronil as a miticide?
 To: [log in to unmask]
 Date: Thursday, April 28, 2016, 8:35 PM
 
 the above is a question from one of
 the students at the Texas A&M Bee Lab
 she provided the following attachments: Fipronil as
 varroacide... Italians 2015.pdf Fipronil is used as a
 varroacide_Johnson 2015.pdf
 
 can anyone lend any light on this? she seem to know of it
 being use for small hive beetle control... is this in fact
 so?
 
          
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