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Pesticide Toxicology Laboratory

ISU Entomology / Pesticide Toxicology Laboratory / Interaction of genetically engineered host plant resistance and natural enemies of Heliothis virescens (Lepidoptera:Noctuidae) in tobacco.

Interaction of genetically engineered host plant resistance and natural enemies of Heliothis virescens (Lepidoptera:Noctuidae) in tobacco.

Authors: Johnson, M.T., Gould, F.
Journal, Volume, Year: Environmental Entomology, volume 21(3):586-597, 1992
Summary

A field study that examined the relationship between Heliothis virescens and its natural enemies on transgenic and non-transgenic tobacco plants. There were four treatments. A toxin-producing plant and a toxin-free plant were caged to exclude natural enemies and a toxin-producing plant and a toxin-free plant were exposed to natural enemies. Survival of uncaged first-instar larvae of H. virescens decreased significantly (as a proportion of caged) on toxin-producing plants.

Comments

Showed possible synergism of plant resistance and predation by natural enemies.