To get the most effective control of rats using poison baits, you need to:

Effective rat control with poison baits requires reducing or eliminating food sources to ensure rats are attracted to the bait rather than alternative food. TheGeneral Pest Management: Guide for Commercial Applicators - Category 7A(Chapter 8: Rodents) emphasizes this IPMapproach, as rats will ignore baits if other food is available. Option A and Option B (placing/removing baits at specific times) are impractical and less effective, as rats are nocturnal but may feed at other times.