These are the only active ingredients in the formulation, as the rest of the bait is non-toxic and made of sugars and preservatives. Combat kills the nest. Roach killing bait strips. Easy to use, no mess baits do not require activation. Combat Roach Killing Bait is specially designed for large roaches, waterbugs, and palmetto bugs. Roach bait combines a food-based lure with insecticide. Combat Roach Killing Bait Strips are great for control of indoor and outdoor cockroach problems in household situations. Combat Max® Defense System Brand Roach Killing Bait & Roach Killing Gel Combat Max® Ant and Roach Killer Quick Kill Foam Spray Combat Max® 12 Months for Small Roaches They have a discreet design, kill the nest and are easy to apply. Once a cockroach ingests the bait, it carries the slow-acting poison back to the nest, where it’s shared with other roaches through droppings or bodily fluids, eventually killing the entire nest. Combat Max® Defense System Brand Roach Killing Bait & Roach Killing Gel Combat Max® Ant and Roach Killer Quick Kill Foam Spray Combat Max® 12 Months for Small Roaches Combat uses one of two poisons for their roach baits depending on the specific product: Fipronil 0.05% or Hydramethylnon 2%. Kill the nest, getting rid of cockroach problems at the source with this specially designed large roach bait product long lasting formula with the powerful insecticide, containing Hydramethylnon.