Merck 007-526002 Ultra-Boss Pour-On Fly Control, 1Qt

Merck 007-526002 Ultra-Boss Pour-On Fly Control, 1Qt

Merck 007-526002 Ultra-Boss Pour-On Fly Control (1 Qt) is a low-volume pour-on insecticide formulated with 5% permethrin and 5% piperonyl butoxide for controlling common external parasites on beef and dairy cattle (including lactating), sheep, goats, and horses. Designed to reduce time and labor, it targets lice and key fly species, and it can also be used in back rubbers. For cattle, it features no preslaughter withdrawal and no milk discard when used as directed.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 007-526002
• Brand: Merck
• Product Type: Pour-On Insecticide / Fly & Lice Control
• Container Size: 1 quart
• Active Ingredients: 5% Permethrin + 5% Piperonyl Butoxide
• Approved Species: Beef cattle, dairy cattle (lactating & non-lactating), calves, goats (lactating & non-lactating), sheep, horses (sheep not intended for human consumption)
• Primary Targets: Lice, horn flies, face flies
• Aids In Control Of: Horse flies, stable flies, mosquitoes, black flies, ticks
• Sheep Targets: Sheep keds and lice
• Cattle Use Notes: No preslaughter withdrawal; No milk discard (when used as directed)
• Cattle Dosage: 3 mL per 100 lb body weight, up to a 30 mL maximum per application
• Retreatment Interval: Repeat as needed, but not more than once every 2 weeks
• Back Rubber Use: Approved for use in back rubbers
• Horse Use Notes: Do not saddle for 6 hours after application; avoid washing the application area
• Lice Control Tip: For best results, two treatments 14 days apart are recommended
• Special Note: Not effective against cattle grubs

Ideal For

• Controlling lice, horn flies, and face flies on cattle with a low-volume pour-on
• Operations needing fly and tick support (aids in control of listed biting flies and ticks)
• Dairy and beef producers wanting a pour-on option with no milk discard and no preslaughter withdrawal for cattle (as directed)
• Treating sheep, goats, and horses for labeled external parasites on a repeatable schedule
• Producers who want an option that’s also approved for back rubber use