Merck Ultra Boss Pour-On Insecticide is a pour-on insecticide for beef, dairy, and lactating cattle. Low-volume dosage reduces time and labor.
- 5% permethrin and 5% piperonyl butoxide
- No pre-slaughter withdrawal
- No milk discard
- Target Species: Lice, horn flies, face flies, horse flies, stable flies, mosquitoes, black flies and ticks
- Apply 3 mL per 100 lb. body weight, up to the 30 mL maximum application limit
- Also approved for use in backrubbers
- Works on lice, horn flies, face flies, horse flies, stable flies, mosquitoes, black flies, ticks, sheep keds
- 1 gal.
Note: This product may require up to 2 additional days for order processing prior to shipping