Gadenin日本語Get the appCheck these first
- Does the yellowing start at the bottom of the plant or at the tips?
- Are the veins still green while the rest of the leaf fades? That points to a nutrient deficiency.
- Look under the leaves for tiny insects or white specks.
Most likely causes
From the pests and diseases recorded for this plant, the ones whose symptoms match, most serious first. Symptoms alone rarely confirm a cause, so use the linked page to check the signs and treatment.
Waterlogging Root Decay
The plant wilts even though the soil never dries, and the lower leaves yellow. Pull it up and the roots have turned brown to black with a distinctive rotten smell.
General description; not specific to this plant.
How to identify and treat: Waterlogging Root DecayBacterial Speck
Small dark brown spots ringed by a yellow halo form on the leaves, and heavy infection burns off the whole leaf. Fruit carries scattered black pinpoint specks.
General description; not specific to this plant.
How to identify and treat: Bacterial SpeckVerticillium Wilt
Only one side of the lower leaves yellows and wilts, and the symptom moves up the plant. Stem vascular tissue turns pale brown and the plant dies without ever growing well.
General description; not specific to this plant.
How to identify and treat: Verticillium WiltOther possible causes
- Fusarium Yellows — Yellowing starts on the lower leaves, the petioles twist and the plant leans to one side. …
Other symptoms on this plant
What other growers did about it
A page like this one can tell you what potato leaves turning yellow is and what to try. What it cannot tell you is what actually happened to someone who had it on the same plant, at the same point in the season, and what they did next.
Gadenin is a free garden journal built around that. You photograph the plant, tag what you are seeing, and the entries line up by date for each plant you grow.
- Tag the problem and the app tells you how many other growers have logged the same thing on the same plant.
- Growers who make their records public can be followed, so you can read what they did and how it turned out.
- Next season your own entries come back at the same point in the year, so you check the plant before it starts.
Free on iPhone. Recording, tagging and reading public records cost nothing.