Problems with green beans
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 green beans.
Common problems with green beans
The problems recorded on green beans, the most common first.
17 problems
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Pest Common
Aphids
Small, soft insects clustered on new growth and under leaves, leaving sticky honeydew. -
Fungal disease Common
Anthracnose
Sunken, dark spots on fruit and leaves, often with pink spore masses in wet weather. -
Viral disease Common
Bean common mosaic virus
Light and dark green mosaic, puckered and cupped leaves, and stunted bean plants. -
Fruiting Common
Blossom drop
Flowers yellow at the stalk and fall before any fruit forms. Usually heat or cold. -
Light & temperature Common
Heat stress
Afternoon wilting, dropped flowers and stalled fruit in a hot spell, even in moist soil. -
Soil & nutrients Common
Too much nitrogen
Lush, dark leaves and few flowers or fruit. Rich feeding pushes growth, not crop. -
Fungal disease
Grey mould (botrytis)
Fuzzy grey mould on fruit, flowers and damaged leaves, rotting them in cool, damp weather. -
Pest
Slugs and snails
Ragged holes in leaves and seedlings gone overnight, with silvery slime trails. -
Bacterial disease
Bacterial leaf spot
Small, dark, water-soaked spots on leaves and raised scabby spots on fruit, spreading in wet weather. -
Pest
Birds
Torn, stripped brassica leaves, pecked fruit, and seeds or seedlings pulled from the soil. -
Viral disease
Cucumber mosaic virus
Mottled yellow and green, puckered leaves, stunted plants and warty, mottled fruit. -
Pest
Cutworms
Seedlings cut off at soil level overnight, with a fat grey caterpillar curled in the soil nearby.