Recent research bridging mechanistic and ecological
approaches demonstrates that plant attributes can affect
herbivores, natural enemies of herbivores, and their interaction.
Such effects may be genetically variable among plants and/or
induced in individual plants by herbivore attack, and are
mediated by primary plant attributes (i.e. nutritional quality and
physical structure) and defense-related products (i.e.
secondary chemicals and plant volatiles), and may be modified
by human activity (e.g. by the introduction of Bacillus
thuringiensis). The study of tri-trophic interactions is important
in order to understand natural species interactions and to
manipulate these interactions in pest control.
Department of Botany, University of Toronto, 25 Willcocks Street,
Toronto, Ontario M5S 3B2, Canada; e-mail: email@example.com
Current Opinion in Plant Biology 2000, 3:329335
1369-5266/00/$ -- see front matter
© 2000 Elsevier Science Ltd. All rights reserved.