There have been a few queries of late regarding ewes scratching that have not been dipped and options where ewes are in the middle of breeding.
It is important to identify if lice or sheep scab is causing the problem. Pour-on products will treat for lice, while there are numerous injectable products for targeting sheep scab. However, be aware that many products require retreatment seven to 14 days later and, as such, may cause similar levels of disturbance to dipping, which provides optimum protection to all ecto-parasites.
Targeted approach critical for successful ectoparasite control
New control option for lice, ticks and keds in sheep