Kaput Combo Bait Mini Blocks 4 lb pail KAP005 Warfarin - 0.025% , Imidacloprid - 0.020% May only be used inside and within 50 feet of buildings or inside transport vehicles (ships, trains or aircraft). For best performance, remove other food sources from the area. Rats: Apply 4 - 16 blocks per bait placement at intervals of 15 to 30 feet. Maintain a fresh bait supply for 10 days. Mice: Apply 1 block per placement at intervals of 8 to 12 feet. Maintain a fresh bait supply for 15 days. Voles: Place 1 block in each bait station. Situate bait stations near runways, burrow opening or plants that voles have been damaging. Check placements daily. Maintain a fresh bait supply for 15 days. Use