As followup to the miticide conversations: does anybody know the half lives of amitraz/coumaphos/fluvalinate? It seems like the quantity that affects us is the ratio of the half life of the miticide and the time between treatments? That way you can determine if it will accumulate over time or not. Do coumaphos or fluvalitate break down at all, or are they stable in the wax? Most of this is with respect to amitraz. Will we be having increasing concentrations of amitraz metabolites down the road? In the wax? In how many years would it take to get to the LD50, for example? (more theoretical than applied questions) I'm more interested (now) in half lives of these things in the hive. I'm interested in the in-hive half lives for the beekeeing. The effects of miticides (amitraz) in the environment is a different, but still pertinent question. Best, Blair *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html