Raspberry Cane Dieback
Raspberry cane dieback can mark a spent fruiting cane, a winter-killed top, a wound infection, a node disease, an insect tunnel, or…
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.
Raspberry Poor Fruiting
A living raspberry patch can miss its crop at three different stages. Find out whether the canes made no flowers, flowers failed to…
Rhododendron Bud Blast
True rhododendron bud blast leaves brown flower buds attached and later covers them with tiny black bristles. Compare that surface…
Rhododendron Leaf Scorch
Brown, crisp edges on Rhododendron leaves mean the leaf lost more water than the roots could replace, and eight different situations…
Rhododendron Root Rot
A Rhododendron that wilts while its soil is wet has usually lost the fine roots that absorb water, and several different failures…
Rose Aphids
Rose aphids gather on tender shoots and buds, but a small colony may disappear under pressure from predators. Confirm the insects…
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.