580 California St., Suite 400
San Francisco, CA, 94104
Figure 1 – uploaded by Joseph Shorthouse
Figure 1 Introduction species. Galls develop as a result of interactions between the inducing insect and plant, wherein the insects gain control and redirect the growth and physiology of attacked organs to the insects’ advantage. The induction of plant galls is consid- ered the most complex association between insects and plants in the natural world. Received 9 May 2005; accepted 8 July 2005 Gall-inducing insects are specialist plant feeders with most species confined to one specific host plant. Galls are atypical plant growths that provide nourishment, shelter and protection to the inducer or its progeny. They are in a sense new plant organs because it is the plant that produces the gall in response to a specific stimulus provided by the invading insect. Each species of inducer produces galls that are anatomically and physiologically different from those induced by other related