Watermelon Poor Fruit Set
A flowering watermelon vine may be behaving normally, missing effective pollination, or aborting a newly pollinated ovary under…
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.
Watermelon Powdery Mildew
White floury colonies that expand across older watermelon leaves fit powdery mildew. Confirm that the material sits on the surface…
Weeping Willow Cankers
A canker becomes likely when a dead weeping willow shoot traces back to sunken, discolored, cracked, or oozing bark. Inspect from the…
Weeping Willow Invasive Roots
A weeping willow naturally develops a broad root system, but root presence is not proof of damage. Match lifted paving, repeated drain…
Weeping Willow Storm Damage
A weeping willow can remain dangerous after the wind stops. First separate a lodged branch from a split load-bearing union or a…
Yellow Leaves on Sweet Basil
Two of the causes of yellow Sweet Basil leaves cannot be fixed by anything you change about watering or feeding, and both are settled…
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.