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Liphatech: BlueMax

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January 20, 2026

Pails of Liphatech BlueMax rodenticide
IMAGE: LIPHATECH

With preservatives in the formulation that resist mold and moisture, Liphatech’s trademarked BlueMax rodenticide is an ideal rodent control solution for use in moist and humid conditions. This second-generation anticoagulant rodenticide has been used by pest management professionals (PMPs) for more than 20 years to combat infestations of house mice, Norway rats and roof rats with the Liphatech-exclusive active ingredient difethialone. It is available in two palatable formulations, offering PMPs the flexibility to choose the best fit for their application.

The first available option is a 20-gram mini block, which offers an ideal solution to handle audited accounts and sites where crumbs and scatter are a concern. Mini blocks are available for purchase in 16-pound pails. Additionally, PMPs can use BlueMax meal bait for burrow baiting of rats in areas where non-targets cannot access the meal. Meal bait is sold in 18-pound pails.

Along with its capabilities for controlling rodent infestations, BlueMax also contains a blue marker dye that can be seen in droppings. PMPs can use this dye to track rodent populations and adjust their control strategy as needed for best results. For additional guidance on their pest control challenges, PMPs can also rely on the expertise of Liphatech’s long-standing technical team. With more than 150 combined years of technical pest management experience, the Liphatech team works to help PMPs find the most effective solutions for the toughest pest problems.

About Liphatech

With U.S. headquarters based in Milwaukee, Wis., Liphatech is a worldwide manufacturer of pest control products. It is considered to be the developer of three of the industry’s active ingredients: chlorophacinone, bromadiolone and difethialone. The company was founded in France in 1946 io develop anticoagulants for the treatment of heart patients. It developed chlorophacinone in the 1960s and branded it as Rozol, a family of products that includes grain and pelleted products for field and structural use, and a tracking powder for use in and around structures. In the 1970s, Liphatech developed bromadiolone, its original second-generation rodenticide active ingredient.

The innovations continued with the opening of its U.S. facility in 1987. Research there and in Europe resulted in the discovery of difethialone during the late 1980s, with U.S. Environmental Protection Agency registration as an active ingredient in 1995.

Liphatech.com

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