Gadenin日本語Get the appCheck these first
- Does the browning start at the leaf edge, from a spot, or from the lowest leaves?
- Are there black specks, powder, or mould on the dead tissue?
- Did you fertilize, spray, or have a heatwave just before it started?
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.
Bacterial Wilt
Leaves wilt while still green during the day and recover in the morning and evening; after a few days of this the plant dies. Cut the stem and stand it in water and a milky white bacterial ooze streams out in threads.
General description; not specific to this plant.
How to identify and treat: Bacterial WiltBacterial Canker
Leaf margins scorch and die back, and splitting the stem reveals browned vascular tissue. Scabby, bird's-eye lesions form on fruit and shoots.
General description; not specific to this plant.
How to identify and treat: Bacterial CankerTomato Mosaic Virus
Light and dark mosaic appears on the leaves, which narrow, twist and crinkle. Fruit ripens unevenly and browns internally, cutting both yield and quality.
General description; not specific to this plant.
How to identify and treat: Tomato Mosaic VirusOther possible causes
- Potato Virus Y — Mosaic, crinkling and vein necrosis appear on the leaves and the lower leaves die back. Th…
- Powdery Mildew — White patches appear scattered on the upper leaf surface at first, then the whole leaf is …
- Late Blight — Dark green water-soaked lesions appear on the leaves and expand quickly into brown dead ti…
- Sclerotinia Rot — The crown, stem or head rots in a water-soaked way and is covered in white cottony myceliu…
- Fusarium Wilt — Lower leaves wilt during the day and recover morning and evening, and this cycle repeats a…
- Verticillium Wilt — Only one side of the lower leaves yellows and wilts, and the symptom moves up the plant. S…
- Southern Blight — The stem rots at soil level and white silky mycelium spreads over the crown and the surrou…
- Root Rot — Fine roots rot brown to blackish brown, growth stops and the lower leaves yellow. The plan…
Other symptoms on this plant
What other growers did about it
A page like this one can tell you what bell pepper leaves turning brown and dying 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.