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NATIVE HOST PLANTS OF THE LARVAE OF THE RED TURNIP BEETLE, ENTOMOSCELIS AMERICANA (COLEOPTERA: CHRYSOMELIDAE)

1984; Cambridge University Press; Volume: 116; Issue: 10 Linguagem: Inglês

10.4039/ent1161281-10

1918-3240

G. H. Gerber,

Insect Pest Control Strategies

Abstract The suitability of four indigenous species ( Descurainia pinnata (Walt.) Britt., D. richardsonii (Sweet) O.E. Schulz, Lepidium densiflorum Schrad., and Rorippa palustris (L.) Besser) and one introduced species ( Erysimum cheiranthoides L.) of Cruciferae as host plants for the larvae of the red turnip beetle, Entomoscelis americana Brown, was tested in the laboratory using excised true leaves as food and Brassica napus L. and D. sophia (L.) Webb as control treatments. R. palustris was a suitable food plant. D. pinnata , D. richardsonii , E. cheiranthoides , and L. densiflorum were marginally suitable. Of the four indigenous species, R. palustris probably is the only one that normally is a host plant of the larvae in nature.