The distribution and importance of cabbage stem flea beetle (Psylliodes chrysocephala (L.)) on winter oilseed rape in England
Graham, C.W.; Alford, D.V.
Plant Pathology 30(3): 141-145
Following several cases of serious damage to winter oilseed rape by cabbage stem flea beetle in eastern and southeastern England, surveys and observations throughout England 1974-1979 showed that infestations occurred mainly in Buckinghamshire, Cambridgeshire, Huntingdonshire and Northamptonshire; the heaviest attacks also occurred in these areas. Minor infestations were recorded locally in 13 other counties. No attacks occurred elsewhere in England.