AAFC, Agriculture and Agri-Food Canada
APS, American Phytopathological Society
BCMAL, British Columbia Ministry of Agriculture and Lands, Pest Management
BCMF, British Columbia Ministry of Forestry
CFIA, Canadian Food Inspection Agengy, Pests Regulated by Canada
Cornell University, Plant Disease Diagnostic Clinic
CPS, Canadian Phytopathological Society
Dave's Garden, Bug Files
ESA, Entomological Society of American [EntSoc]
ESBC, Entomological Society of British Columbia
FNABC, Forest Nursery Association of British Columbia
FRAC, Fungicide Resistance Action Committee
GISD - Global Invasive Species Database
IPM Images, The Source for Agricultural Images
IRAC, Insecticide Resistance Action Committee
MOBOT, Missouri Botanical Garden: Plant Finder (& plant pest listings)
NAPPO, North American Plant Protection Organization
NC State University, A Guide to Online Insect Systematic Resources
North Dakota State University, Extension
NPMA, National Pest Management Association (structural pests)
NRC, Natural Resources Canada, Forest Pest Trends
Ohio State University, Plant Facts
Oklahoma State University, Digital Diagnostics
Oregon State University, P.N.W. Nursery IPM
Pacific Northwest Insect Management Handbook
Pacific Northwest Plant Disease Management Handbook: An On-line Guide to Plant Disease Control
Pacific Nortwest Fungi Database
PMRA, Pest Management Regulatory Agency, Health Canada
PPAC, Plant Protection Advisory Council of BC
PPMABC, Professional Pest Management Association of British Columbia
The Bugwood Network, Centre for Invasive Species and Ecosystem Health
UC IPM, University of California Integrated Pest Management
University of Florida, Plant Nutrient Deficiency Database
University of Georgia / USDA Forest Service, Bark and Wood Boring Beetles of the World
University of Kentucky: Factsheets on various pests
University of Wisconsin, Pests, Urban Argriculture
WEEDS: Field Guide to Noxious and Other Selected Weeds of British Columbia
WEEDS: Invasive and Exotic Weeds
WEEDS: Invasive Plant Council of British Columbia
WEEDS: Noxious Weed Control Board, Washington
WEEDS: Pacific Northwest Weed Management Handbook