•       Cattle lice live only on cattle – they cannot be transmitted to or
        from other species. 
•       Two species important : 
                 Sucking lice                         (Linognathus vituli)
                 Biting lice                             (Bovicola bovis)

•       Lice numbers increase in Autumn, peak mid to late Winter,
        and decline in Spring..
•       Young calves in their first year of life carry the most lice
•       Underfed animals carry larger louse populations.
•       Generally treatment of adult stock for lice is unnecessary.

Control & Treatment.

•        Mectins
         (Includes active ingredients; abamectin, doramectin, eprinomectin,
          ivermectin,  and moxidectin.)
•        Oral controls sucking lice only
•        Injectable and boluses controls sucking lice, and “aids”
         in the control of biting lice
•        Pour-ons control both biting and sucking lice
•        Optimum time to control is mid Winter 
  
  
  

Organophosphate (OP) Pour-ons

•        Control all lice, and some also flies.