Diseases - Impatiens Necrotic Spot Virus (INSV) (Hortipm. Tamu. Edu., USA)
Impatiens disease factsheets (The Plant Disease Diagnostic Clinic, USA)
Impatiens Key warning symptoms (Agdia Inc., USA) Pic.1
Impatiens Necrotic Spot Virus (Horticulture & Home Pest News, USA)
Impatiens Plant Health Problems (Plant Pest Handbook, CAES, USA)
Manage and identify insects, mites, diseases, nematodes.... (UC IPM, USA)
Ringspots and Line Patterns on Impatien Leaves Spell Trouble (PPDL, USA)
Solving Impatiens Problems (Yardener's Advisor Newsletter, USA)
Sycamore, impatiens are at odds (Tallahassee Democrat, USA)
Troubleshooting Impatiens + Types of Impatiens (Bachman's, USA)