Merck ULTRA BOSS® Pour-On Insecticide

ULTRA BOSS POUR-ON INSECTICIDE features broad-spectrum control in a pour-on.

Containing 5% permethrin and 5% piperonyl butoxide, ULTRA BOSS POUR-ON INSECTICIDE controls lice, flies and more in lactating and non-lactating dairy cattle, beef cattle and calves.

About ULTRA BOSS POUR-ON INSECTICIDE:

• Broad-spectrum insecticide against lice, horn flies and face flies. Aids in control of horse flies, stable flies, mosquitoes, black flies and ticks.
• Effective horn fly control for 8 weeks.¹
• Season-long lice control with one application (January through April).¹
• Fast-acting permethrin formulation with 5% piperonyl butoxide optimizes control.¹
• ULTRA BOSS POUR-ON INSECTICIDE should be used as part of an integrated pest management system with the use of other pest control practices.

Dosage and Usage:

• Repeat treatment as needed but not more than once every 2 weeks.
• Do not allow pesticide to enter or run off into storm drains, drainage ditches, gutters or surface waters.
• Not for use in outdoor residential misting systems.
• Available in one U.S. quart (treats 57 550-lb. cattle) or one U.S. gallon (treats 229 550-lb. cattle).
• For more information, including complete directions and warnings, please see the product label.