A rodenticidal bait block is disclosed which comprises a foodstuff for the rodent comprising edible seed and/or cereal, at least one rodenticide and a polymeric binder, wherein the polymeric binder comprises a copolymer of a (meth)acrylic ester and styrene. The wax-free bait blocks of the invention have good palatability and hardness properties and have high temperature stability and moisture-resistance.
