She worked on the biology of locusts, flight and dispersal of the Hemiptera, and taught at Imperial College, Silwood Park campus.
She was known for her exceptional teaching ability and she also conducted research on the diapause of flour moths, the ecology and population dynamics of various insects.
[2] She examined the factors contributing to wing polymorphism, the presence of wingless, short-winged and long-winged forms in relation to habitats and life-history.
She suggested that trees and woody plants are architecturally more complex with leaves being widely separated and making flight more important.
[4][5] Waloff retired in 1978, but in 1990, she was still publishing as a member of the Department of Pure and Applied Biology, at the Imperial College.