Blane White wrote:

> Hi Everyone,
>    I will only add one comment.  Those hives that Dr Pettis found to contain coumaphos resistant varroa in the northeast US were treated successfully with apistan so at least at present it appears that switching back to apistan will give you an effective treatment but do remember to monitor after treatment to make sure the treatment worked.

 I was told by this beekeeper that the mites treated by apistan were merely knocked off, and that because of the cold weather could not crawl back onto the bees. He wasn't sure if apistan would work for him in warm weather.

                                                                                                Mike