§ Mr. Tony Banksasked the Secretary of State for the Environment what pesticides and herbicides are used inside the grounds of the Palace of Westminster.
§ Sir George YoungThe only herbicide or pesticide used on the grounds of the Palace is for control of algae on gravel paths in New Palace Yard and on Cromwell Green. It is a contact herbicide, in the form of a sodium salt, which can be bought in most garden shops. Its main constituent is dichlorophen. Within the Palace itself appropriate pesticides are used in the kitchens when necessary by specialist contractors brought in from time to time as and when the need arises.