Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what (a) research and (b) data his Department holds on rodent infestations and problems.

Defra does not carry out research or hold data on rodent infestations and problems.

Defra and the Animal and Plant Health Agency (APHA), in collaboration with a number of partners including the devolved administrations, publishes a Code of Practice for the prevention and control of rodent infestations on poultry farms Code of Practice: prevention and control of rodent infestations on poultry farms - GOV.UK.