Lice can be eliminated from a herd if the herd is kept isolated from other cattle and if the following procedure is followed. Treat all animals in the herd with approved pour-on, spot-on, or spray-type chemicals. This treatment will kill all active forms but will not kill the eggs. Retreat the entire herd 14 to 21 days later, except for products that require a longer interval between applications. This should completely eliminate lice on the herd. A louse-free herd can be maintained if all new animals are treated twice before being added to the herd.
| Non-Systemic Pour-ons for winter louse control | Days to Slaughter |
| Atroban, Back Side, Back Side Plus, Boss, Brute, DeLice, Ecto Zap, Expar, Permectrin, Permectrin CDS-, Ultra Boss (permethrin) | 0 |
| CyLence 1% (cyfluthrin) | 0 |
| Elector (spinosad) | 2 |
| Sabre 1% (l-cyhalothrin) | 0 |
Spot-ons
Dursban 43.2% OS (chlorpyrifos) at the rate of 2 cc of formulation per 100 lbs of body weight. 14 day slaughter interval.
Do not exceed 16 cc/animal. Do not retreat within 30 days
Systemic insecticides
The systemic pour-on and injectable insecticides for cattle grub control will also control or suppress sucking and or biting lice.
See the cattle grub control table for specific products.
Sprays
In addition to the sprays previously listed for horn fly and face fly control, TactiK 12.5% EC can be used at the rate of 8 fl oz per
25 gallons of water will control cattle lice. Use Tactik within 6 hours of mixing.