So far it is anecdotal that chlorine is effective against either of these 
nosemas. If it turns out that experiments prove it so great. On the other 
hand it may also be possible that some of the essential oils would be as 
effective with possibly longer exposed shelf life (slower outgassing) and 
possibly easier application methods, without syrup feeding and dribbling? 
Hopefully someone will take the time and effort to investigate this. I use 
oil of wintergreen in veg oil soaked napkins for trachea mites. Have next to 
zero nosema 'symptoms'. Not very scientific but at least a glimmer of 
possibly being effective.

Alden Marshall

******************************************************
* Full guidelines for BEE-L posting are at:          *
* http://www.honeybeeworld.com/bee-l/guidelines.htm  *
******************************************************