Alerts/New Pest Information Sources
British Society for Plant Pathology New Disease Reports
European and Mediterranean Plant Protection Organization Alert List
National Agricultural Pest Information System (US) Pest Alert List
National Invasive Species Information Center
National Plant Board (USA)
Plant Protection Services Pest Alerts (Pacific Islands)
ProMed Plant Disease Announcements
USGS Nonindigenous Aquatic Species

NAPPO Country Pest Resources
APHIS Regulated Pest List (USDA)
Agricultural Research Service (USDA)
Canadian Forest Service
CFIA Plant Pest Information (Canada)
CFIA Regulated Pest List (CA)
Exotic Forest Pest Information System for North America
Federal Noxious Weed Program (USDA)
Invasive Species of Canada Project
NCSU Center for Integrated Pest Management (US)

International
Australian Animal and Plant Health
CAB International
French Institute for Agronomy Research Pest Pages
International Association for the Plant Protection Sciences
IUCN Invasive Species Specialist Group
International Phytosanitary Portal
International Society of Plant Pathology
Consejería de Agricultura y Pesca de la Junta de Andalucía
Sistema de alerta INTA Pergamino (SENASA-SINAVIMO, Argentina)
Argentine National Pest Surveillance and Monitoring
Vigilancia Fitosanitaria (SENASA, Perú)

Professional Societies
American Malacological Society, Inc.
American Phytopathological Society
Canadian Phytopathological Society
Ecological Society of America
Entomological Society of America
Entomology Society of Canada
Plant Canada, the Federation of Canadian Plant Science Societies
Society of Nematologists
Sociedad Mexicana de Fitopatología
Weed Science Society of America

Other Pest Resources
The Bugwood Network (University of Georgia)
Systematic Entomology Laboratory (USDA)
Systematic Botany and Mycology Laboratory (USDA)
University of Florida Featured Creatures (USA)
USDA Nematology Lab
Western Australia Dept. of Agriculture Entomology Page
Plagas Online
Universal Virus Database

Weed Resources
Center for Aquatic and Invasive Plants (University of Florida)
Exotic and Invasive Weeds Research Unit (US)
PLANTS database (USDA, NRCS)
Weeds Australia