Why slow-acting baits work better on rodents. Rodents can remember food that made them sick and avoid it in the future — this is called bait shyness. Unlike zinc phosphide, flocoumafen acts slowly, taking 3 to 5 days before the effects kick in. With pulse baiting, rodents keep coming back for small, timed doses until the colony is eliminated. #EntomKnowsPest #SirElmerSays #AskSirElmer #PestControl #Rodents #rodentcontrol #foryoupage | ENTOM Pest Control