Has anybody experience colonies infected with nosema in the north east in the last several years,  and how did you handle it?   I had several colonies die this year of nosema.  I have never feed fumidil, but I'm now feeding fumidil too the surviving colonies.  Can I introduce new colonies to the infected equipment this spring and feed them fumidil without disinfecting the contaminated equipment and still have productive colonies?  Any advice would be appreciated  Thanks.