Identification

Plant ID

  1. OSU Landscape Plants
  2. Oregon Flora Project Gallery
  3. OSU Woody Plant ID System
  4. Common Trees of the Pacific Northwest
  5. Field Guide to the Shrubs of Southwest Oregon 
  6. Native Woody Plants of Oregon
  7. Non-Native Invasive Plants of the PNW
  8. OSU Herbaceous Plant Family ID
  9. UC All Stars
  10. UC CalFlora Plant Key
  11. Spring Flowering Washington Natives
  12. UW Herbarium Image Collection
  13. USDA Plant Database

Weed ID

  1. PNW – Weed Management
  2. USDA – Non – Native Invasive Plants of the PNW
  3. ODA Oregon Noxious Weed Profiles
  4. USDA Introduced Invasive and Noxious Plants
  5. PNW Invasive Weed ID and Management
  6. Weed Identification Columbia Basin
  7. PNW Weed Identification Module
  8. University of Wisconsin – Weed Identification & Information Center
  9. Green Street Stewards Weed Identification
  10. UC – IPM – Weed Photo Gallery

Pest ID

  1. Insect Management Hand Book Pacific Northwest
  2. UC – Integrated Pest Management
  3. Insect Pest Management in the PNW
  4. Exotic and Invasive Pests in California – UC
  5. Pacific Northwest Insect Management
  6. Insect Pests of Vegetables
  7. Spiders of Oregon
  8. Spiders of Portland – Susan Masta – Portland
  9. The University of Maine – Home and Garden
  10. Welcome to BugGuide.net!
  11. National Pesticide Information Center – Home Page

Disease ID

  1. Plant Disease Management
  2. OSU Plant Clinic – Plant Disease
  3. Cornell Fruit
  4. Cornell – Tomato Leaf Symptoms Diagnostic
  5. Cornell – Vegetable MD Online
  6. USDA – PNW – Forest & Grassland Health
  7. WSU Vegetable Pathology Program
  8. Signs and symptoms of plant disease: Is it fungal, viral, or bacterial? MSU Extension