If baits are used indoors, be sure they are labeled specifically for interior use. The active ingredients in baits are used at very low levels, so bait shyness does not occur when using properly formulated baits. Most of these baits cause death only after they are eaten for several days, although some types can cause death following a single feeding. Make sure that fresh bait is available continuously until rats stop feeding. Bait Selection and Placement.
Baits are available in several forms.
Grain baits in a meal or pelleted form are available in small plastic, cellophane or paper packets. Rats gnaw into the packet to feed on the bait. Block style baits are also very effective for most situations. Using tamper- resistant bait stations provides a safeguard for people, pets and other animals. Place bait stations next to walls with the openings close to the wall or in other places where rats are active.