He updated earlier works, adding to the knowledge of those groups rather than just adding to the confusion. His publications on scale insects are essential references for researchers and agricultural ...

Maple trees in urban environments show signs of stress due to the urban heat island effect. Impervious surfaces like pavement retain heat and disrupt water absorption, stressing trees and making them ...

Williams: to any question that did not involve scale insects, his usual answer was ‘I’ll think about it’ Douglas Williams, the entomologist, who has died aged 101, was a pioneer in scale insect ...