Now may be the time to recheck cattle two to three weeks after lice treatment. The advice comes from Teagasc beef specialist David Argue, who highlighted the importance of clipping and effective lice control in protecting cattle performance over the winter. Clipping also improves the effectiveness of pour-on treatments by ensuring the product reaches the skin. Without effective treatment, populations can build quickly, leading to severe irritation and skin damage. Injectable and pour-on avermectins are effective against sucking lice and mange mites, but only pour-on treatments control biting lice.

Source: Irish Examiner January 06, 2026 18:19 UTC