Effectiveness of a mixture of cyromazine and diazinon for controlling flystrike on sheep.

摘要

To determine whether there is any need for woolgrowers to add diazinon to cyromazine jetting fluid to control active flystrike on sheep, larval implants were placed on 143 sheep and allowed to develop for 2 days. The sheep were randomly assigned to3 groups of 47 or 48 and hand jetted with cyromazine (1000 mg/litre), diazinon (400 mg/litre), or a mixture of the two. After treatment, the implants were assessed daily for 3 days for the presence of feeding larvae. When checked 1 day after treatment, there was a 62% reduction in flystrike in the diazinon treated sheep, a 12% reduction on the cyromazine treated sheep and a 69% reduction in the the combined treatment group. Three days after treatment there was no difference in flystrike control betweenthe cyromazine and combined groups (97-99%).