Troubleshooting
Aquadulce Broad Bean problems — and how to fix them
Aquadulce Broad Bean (Vicia faba) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Blackfly (black bean aphid)
Colonies form densely on shoot tips from late spring. Pinch out the top 5-10 cm of growth once the lowest flowers have set to remove the primary infestation site.
Chocolate spot
Brown lesions caused by Botrytis fabae in damp conditions. Autumn-sown plants are more susceptible in a wet spring. Space plants 20-25 cm apart and remove badly affected foliage.
Bean weevil
Distinctive 'U'-shaped notches eaten from leaf margins, particularly in spring. Rarely fatal to plants — tolerate unless very severe.
Rust (Uromyces viciae-fabae)
Orange pustules on leaves from early summer. Remove affected leaves; full defoliation is rarely necessary.
Lodging in wind
Tall plants fall over in wind without support. Stake with canes and string along rows, or grow in a sheltered spot.
Prevent aquadulce broad bean problems before they start
Most aquadulce broad bean issues are care-mismatch, not bad luck. Dial in the basics:
- Common fava bean problems — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Aquadulce Broad Bean watering schedule
- Aquadulce Broad Bean light requirements
- Best soil mix for aquadulce broad bean
- Aquadulce Broad Bean temperature & humidity
- Full aquadulce broad bean care guide
Looking for aquadulce broad bean in general rather than its problems? Read the full aquadulce broad bean care guide — light, water, soil and feeding.
Aquadulce Broad Bean problems — FAQ
Why is my aquadulce broad bean blackfly (black bean aphid)?
Colonies form densely on shoot tips from late spring. Pinch out the top 5-10 cm of growth once the lowest flowers have set to remove the primary infestation site.
Why is my aquadulce broad bean chocolate spot?
Brown lesions caused by Botrytis fabae in damp conditions. Autumn-sown plants are more susceptible in a wet spring. Space plants 20-25 cm apart and remove badly affected foliage.
Why is my aquadulce broad bean bean weevil?
Distinctive 'U'-shaped notches eaten from leaf margins, particularly in spring. Rarely fatal to plants — tolerate unless very severe.
Why is my aquadulce broad bean rust (uromyces viciae-fabae)?
Orange pustules on leaves from early summer. Remove affected leaves; full defoliation is rarely necessary.
Why is my aquadulce broad bean lodging in wind?
Tall plants fall over in wind without support. Stake with canes and string along rows, or grow in a sheltered spot.