Plant ID

  1. OSU Broadleaf Search
  2. OSU Conifer Search
  3. Common Trees of the Pacific Northwest
  4. Oregon Flora Project Gallery
  5. Field Guide to the Shrubs of Southwest Oregon
  6. Native Woody Plants of Oregon
  7. Non-Native Invasive Plants of the PNW
  8. UC All Stars
  9. UC CalFlora Plant Key
  10. Washington Native Plants Directory
  11. UW Herbarium Image Collection
  12. 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. Penn State – Diagnosing Common Problems in the Veggie Garden
  4. Cornell Fruit
  5. Cornell – Tomato Diagnostic Key
  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