1. Lees, A. D. Ann. appl. Biol. 40, 449–486 (1953).
2. Gould, H. J. & Kingham, H. G. Pl. Pathol. 14, 174–178 (1965).
3. Hussey, N. W. Acarologia 13, 344–350 (1972).
4. Bondarenko, N. V. Zool. Zh. 37, 1012–1023 (1958).
5. Parr, W. J. & Hussey, N. W. Hort. Res. 6, 1–21 (1966).