Contains 1% lambda-cyhalothrin and 5% piperonyl butoxide.
Directions: Apply down backline at rate of 10 ml per head for cattle weighing less than 600 lbs or at a rate of 15 ml per head for cattle weighing more than 600 lbs. Repeat as necessary; do not apply more than once every 2 weeks and not more often than 4 times within any 6-month period. For reduction of sucking lice, 2 treatments at a 14-day interval are recommended. Not recommended for use on veal calves. Do not apply during rain. No slaughter withdrawal. 1 gallon treats 378 cattle (less than 600 lbs).
Do not apply to lactating or dry dairy cows, or to face of beef cattle or calves.