Newstead, R. 1900a The injurious scale insects and mealy bugs of the British Isles.. Journal of the Royal Horticultural Society 23: 219-262.
Notes: Notes on appearance and habits of 33 spp.; control.
Newstead, R. 1900a The injurious scale insects and mealy bugs of the British Isles.. Journal of the Royal Horticultural Society 23: 219-262.
Notes: Notes on appearance and habits of 33 spp.; control.