Cabbage Worms
Turn over leaves on cabbage and other brassicas to find the larva, fresh frass, and new feeding.
Plant Diagnosis
Plant Problems
Start with the symptom you can see. Compare likely causes before changing water, fertilizer, light, or treatment.
Triage First
Observe before you treat
A useful diagnosis starts with location, timing, and the pattern of damage.
1
Locate the damage
Check whether symptoms begin on old leaves, new growth, roots, or one side of the plant.
2
Check recent changes
Note weather, watering, repotting, feeding, pruning, and any new treatment.
3
Compare evidence
Look for insects, residue, soft tissue, dry edges, odor, and soil moisture.
Problem Library
Search by visible symptom
85 matching guides
Search and filter problems
Search checks problem names, descriptions, and summaries. Plant group uses the category saved on each problem; sorting uses the update date or problem name.
Calathea Brown Tips
Dry brown Calathea tips are damaged tissue that will not turn green again. The same appearance can follow different stresses, so tip…
Calathea Crispy Leaves
Crispy Calathea leaves have dry tissue extending along the margin or farther into the patterned blade, often with curling or rolling.
Camellia Bud Drop
Camellia buds can fall before opening because the shrub set more buds than it can carry, endured irregular moisture months earlier…
Camellia Yellow Leaves
Camellia leaves turn yellow in several distinct patterns. Yellow tissue between green veins on young leaves supports iron chlorosis…
Cherry Blossom Leaf Spot
Spots and holes on ornamental cherry leaves need a lesion-first diagnosis. Round purple spots that brown, develop pale centers, yellow…
After Diagnosis
Help the plant recover
Water
Correct moisture without swinging too far
Use the plant and soil condition to set the next watering.
PestsChoose the least disruptive control
Match treatment to a confirmed pest and its life stage.
NutritionFeed only when growth can use it
Rule out root and moisture problems before adding fertilizer.