Bait Mini Blocks Kaput Combo Bait Mini Blocks deliver the first rodenticide that also eliminates fleas for an all-around approach to pest control. The bait is effective against Norway and Roof rats; house mice, deer mice, and white-footed mice; voles; and the fleas that reside on these rodents and may be carriers of infectious diseases. Studies have shown that in times of aggressive baiting with traditional rodenticides, flea populations actually increase, contributing to disease outbreaks as the fleas search for new hosts. Kaput Combo Bait Mini Blocks prevent the spread of these diseases by targeting the fleas with imidacloprid, as well as effectively killing the rodent population with warfarin. These active ingredients are effective at low concentrations, making them exceptionally safe for use in and around the home. However, in cases of accidental poisonings of children or pets, Vitamin K1 is a readily available antidote. Formulated with paraffin, the Kaput Combo Bait Mini Blocks are moisture-resistant and durable. The blocks have ridged surfaces to facilitate rodent gnawing, and a hole through the center allows the blocks to be fastened down inside a bait station. Quality grains ensure that the rodents are easily attracted to the blocks, and continue to feed on the bait. Recommended Application*: â¢Rats: Apply 2-8 blocks per placement in intervals of 15 to 30 feet in infested areas. Maintain bait supply for 10 days. â¢Mice: Apply 1 block per placement in intervals of 8 to 12 feet. Maintain bait supply for 15 days. â¢Voles: Apply directly to burrows or runways and cover well to prevent non-target exposure. Maintain bait supply for 15 days. â¢â¢Use tamper-resistant bait stations when children, pets, or non-target wildlife are present.