Erythroneura spp. (Cicadellid) feeding behaviour on grapevine

Text adapted from my 2010 Gold Medal address presented before the Entomological Society of Canada, Vancouver, British Columbia, 31 October 2010. This text is also downloadable at: http://esc-sec.ca/meetings/ESC2010/goldmedalvincentfull.pdf. An abridged version of this document has been published in the Bulletin of the Entomological Society of Canada 43(2): 58-67 (2011), and is downloadable at: http://esc-sec.ca/bulletin/bulletin_june_2011.pdf