§ 24. Mr. Cooperasked the Parliamentary Secretary to the Ministry of Works, as representing the Lord President of the Council, how far the Department of Scientific and Industrial Research is carrying out any research to combat the growing immunity of many insect pests to the newer chemical insecticides.
§ Mr. H. NichollsThe Pest Infestation Laboratory of the Department of Scientific and Industrial Research is carrying out intensive research—using biochemical and radioactive tracer techniques—to determine the physiological factors responsible for this ability to acquire resistance to insecticides. This work is being done in collaboration with the World Health Organisation.