TREATMENT AND PROPHYLAXIS OF PSOROPTIC MANGE OF SHEEP BY A 10-PERCENTW W DIP FORMULATION OF HIGH CIS-CYPERMETHRIN/

A 10% w/w dip formulation of high CIS-cypermethrin (Ecofleece sheep di p) was evaluated as a prophylactic and treatment method against Psorop tes ovis of sheep. A laboratory trial using groups of healthy sheep un der challenge showed that, when dipped as directed for 1 min, they wer e protected against infection for at least 4 weeks. Twelve sheep infec ted with psoroptic mange at the laboratory were effectively treated by one dipping in Ecofleece. A field outbreak of psoroptic mange in a fl ock of 237 crossbred ewes was likewise successfully treated by just on e dipping. As this formulation is also effective against blowfly myias is it is a useful alternative to organophosphate dual purpose dips.