Gadenin日本語Get the appCheck these first
- Are the stems stretched with long gaps between leaves? That is a lack of light.
- Are new leaves curled, twisted, or unusually small? Think virus or sap-sucking pests.
- Are the leaves dark and lush but there are no flowers or fruit? That is too much nitrogen.
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.
Tomato 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.
How to identify and treat: Tomato Mosaic VirusTomato Yellow Leaf Curl
New leaves stay small, turn yellow and curl upward at the margins. The plant becomes stunted, flowers drop, and almost no fruit sets.
How to identify and treat: Tomato Yellow Leaf CurlTomato Leaf Mold
Pale yellow indistinct patches form on the upper leaf surface with a velvety gray-brown mold underneath. Leaves die back from the bottom up, and fruit set and sizing suffer.
How to identify and treat: Tomato Leaf MoldOther possible causes
- Tobacco Mosaic Virus — New leaves show a clear light-and-dark green mosaic, become wavy and stay small. Growth st…
- Aphids — Small green or black insects cluster on shoot tips and leaf undersides, crinkling the leav…
- Cucumber Mosaic Virus — New leaves show a yellow-green mosaic, crinkle, and the whole plant becomes stunted. Fruit…
- Potato Virus Y — Mosaic, crinkling and vein necrosis appear on the leaves and the lower leaves die back. Th…
- Vine Overgrowth — Leaves grow large and dark green and the vines keep running vigorously, but no flowers or …
- Potato Leafroll — Lower leaves roll inward into tubes and become stiff and leathery. The plant is stunted an…
- 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 tomato not growing well 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.