Alec Mackenzie and David Flood

David Flood is greenhouse horticulture consultant, Flood Technical Services, (604) 414-0695; dflood@twincomm.ca. Alec Mackenzie is director research and development, Argus Control Systems Ltd., and board of director member and director of the Education Committee of National Greenhouse Manufacturers Association, (800) 667-2090; www.arguscontrols.com.