Problems with tomatoes
Identify what's wrong by where it appears and what you can see.
Where is the problem?
Start by selecting the part of the plant where you see the problem.
Start with the symptom
Or pick from the symptoms most often seen on tomatoes.
Common problems with tomatoes
The problems recorded on tomatoes, the most common first.
32 problems
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Aphids
Small, soft insects clustered on new growth and under leaves, leaving sticky honeydew. -
Blossom end rot
A sunken, dark, leathery patch at the flower end of the fruit. Caused by uneven watering. -
Grey mould (botrytis)
Fuzzy grey mould on fruit, flowers and damaged leaves, rotting them in cool, damp weather. -
Late blight
Dark, water-soaked patches that spread fast in warm, wet weather, killing leaves, stems and fruit. -
Bacterial leaf spot
Small, dark, water-soaked spots on leaves and raised scabby spots on fruit, spreading in wet weather. -
Blossom drop
Flowers yellow at the stalk and fall before any fruit forms. Usually heat or cold. -
Cutworms
Seedlings cut off at soil level overnight, with a fat grey caterpillar curled in the soil nearby. -
Early blight
Brown spots with target-like rings on the lower leaves of tomatoes and potatoes. -
Fusarium wilt
Leaves yellow and wilt, often on one side first; inside the stem is stained brown. -
Heat stress
Afternoon wilting, dropped flowers and stalled fruit in a hot spell, even in moist soil. -
Magnesium deficiency
Yellow between the veins of older leaves, veins still green. Common on tomatoes. -
Nutrient deficiency
Pale, yellowed or purpled leaves in a telling pattern. Read which leaves first, then feed.
