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Black Bean Aphid
Common names: Black Bean Aphid Scientific name: Aphis fabae
Overview
Black bean aphid (Aphis fabae) is a dark-coloured aphid species associated with beans, ornamentals, weeds and several horticultural crops.
It can form dense colonies on soft growth and may cause distortion, honeydew and reduced vigour.
Symptoms
- Dense dark aphid colonies
- Distorted young growth
- Sticky honeydew
- Sooty mould
- Reduced plant vigour
- Ant activity around colonies
Host relevance
Important on:
- beans
- beet
- ornamentals
- nursery stock
- weeds acting as reservoirs
IPM relevance
Black bean aphid can build rapidly where soft growth and ant protection allow colonies to expand.
Useful focus areas:
- early scouting
- weed host management
- soft growth monitoring
- preservation of predators and parasitoids
Biological control relevance
Useful natural enemies may include: