The Cabbage Stem Flea Beetle (Psylliodes chrysocephala, L.)
Derbyshire Farmer 17(5): 169-170
Cabbages in Derbyshire were severely infested by Psylliodes chrysocephala, L., during 1935-36. Eggs were laid in the soil near young plants. Oviposition, although possibly beginning in September, was observed intermittently from October to the following May, but eggs laid after January did not mature until the crops had been destroyed or harvested. Up to about six larvae burrow into the core of a single stem and either kill or fatally weaken the plant.