Gadenin日本語Get the appCheck these first
- What colour are the spots, and do they have a yellow halo?
- Are there concentric rings or a mosaic pattern?
- Are the spots only on leaves, or also on stems and fruit?
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 Spot
Small water-soaked spots appear on the leaves, later turning brown with yellowing around them. Fruit develops water-soaked or scabby spots from which rot spreads.
General description; not specific to this plant.
How to identify and treat: Bacterial SpotBacterial 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
Show the other 11
- Tobacco Mosaic Virus — New leaves show a clear light-and-dark green mosaic, become wavy and stay small. Growth st…
- Cucumber Mosaic Virus — New leaves show a yellow-green mosaic, crinkle, and the whole plant becomes stunted. Fruit…
- Tomato Spotted Wilt — Brown necrotic spots and ring patterns appear on the leaves and the growing tips shrivel a…
- Pepper Mild Mottle Virus — Leaves become faintly variegated and mottled and crinkle slightly. Fruit stays small, is b…
- 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 …
- Gray Mold — Water-soaked brown lesions form on flowers, fruit and leaves, densely covered by a fuzzy g…
- Late Blight — Dark green water-soaked lesions appear on the leaves and expand quickly into brown dead ti…
- Anthracnose — Light brown to dark brown round lesions with sharp margins form on leaves and fruit, sligh…
- Ring Rot — The bark of branches and trunk becomes rough and warty, serving as the inoculum source. Fr…
- Leaf Spot — Small round brown to gray-white lesions appear on the lower leaves, the centers turning gr…
Other symptoms on this plant
What other growers did about it
A page like this one can tell you what bell pepper leaf spots 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.