Plant Problems
Symptom-based diagnosis: what's most likely wrong and what to do about it.
44 tools
Tomato leaf symptoms
Tomato Plant Problems — Diagnose by Symptom
Pick the symptom you see and get ranked causes with actions
Brown or Black Spots on Tomato Leaves
Diagnose brown or black spots on tomato leaves — ranked causes, how to confirm, what to do
Holes in Tomato Leaves
Diagnose holes in tomato leaves — ranked causes, how to confirm, what to do
Tomato Leaves Curling
Diagnose tomato leaves curling — ranked causes, how to confirm, what to do
Tomato Leaves Curling Down
Diagnose tomato leaves curling down — ranked causes, how to confirm, what to do
Tomato Leaves Turning Purple
Diagnose tomato leaves turning purple — ranked causes, how to confirm, what to do
Tomato Leaves Turning Yellow
Diagnose tomato leaves turning yellow — ranked causes, how to confirm, what to do
Tomato Leaves Wilting
Diagnose tomato leaves wilting — ranked causes, how to confirm, what to do
White Lines in Tomato Leaves
Diagnose white lines in tomato leaves — ranked causes, how to confirm, what to do
White Spots on Tomato Leaves
Diagnose white spots on tomato leaves — ranked causes, how to confirm, what to do
Cucumber leaf symptoms
Cucumber Leaves Turning Yellow
Diagnose cucumber leaves turning yellow — ranked causes, how to confirm, what to do
Cucumber Plant Wilting
Tell heat-stress wilting apart from bacterial wilt in cucumbers, including the stem-ooze confirmation test
White Spots on Cucumber Leaves
Tell powdery mildew apart from downy mildew on cucumber leaves — the underside test
Cucumber Leaf Spots
Diagnose angular leaf spot on cucumber and tell it apart from downy mildew
Pepper problems
Brown Spots on Pepper Leaves
Diagnose bacterial leaf spot on pepper — and how it differs from the same disease on tomato
Pepper Blossom End Rot
Diagnose blossom end rot on pepper fruit and tell it apart from sunscald
Pepper Leaves Curling
Tell aphid damage, herbicide drift and broad mite damage apart on curling pepper leaves