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Common bean

[R] Phaseolus vulgaris L. (Fabaceae).
Fr: Haricot; Ge: Gartenbohne; Sp: Judia; It: Fagiola verde; Pt: Feijao.
- Annual legume growing upright or climbing, with a twinig stem, trifoliate leaves, flowers arranged in racemes and having long pods (*) .
- It is cultivated for its green pods, which are consumed in their entirety, or whose seeds are consumed fresh, dried or canned.
- The principal European producers are Spain, Italy and France.
- There are very many varieties with different forms, sizes, colours of pods and grains.
- Cultivation is generally outdoors. In the case of crops destined for harvesting of the pods, sowing is spread out from March to August, depending on the region; harvesting occurs when the fruits are ripe. In the case of crops destined for harvesting of the seeds, planting occurs in May, and harvesting, done manually, takes place when the pods are yellow. In the case of dried seeds, the plants are pulled up and placed to dry.
- In the case of glasshouse crops, sowing occurs from January to May and transplanting takes place 15 days later.
- Diseases: the principal phytosanitary problems of bean are damping-off disease, sclerotinia diseases and bacterial diseases.
- Principal European pests: The bean seed fly (Delia platura) is the most serious pest of the seedling.
The black bean aphid (Aphis fabae) and the pea aphid (Acyrtosiphon pisum) colonize the stem and leaves.
The two-spotted spider mite (Tetranychus urticae) deforms and discolours the leaves. The European corn borer (Ostrinia nubilalis) perforates the pods and the common bean beetle (Acanthoscelides obtectus) attacks the seeds.

[R] Images

* Bean stem (Minost C.)
a: stem volubile; b: stipule; c: leaf trifoliate; d: flowers white or purple, arranged in a cluster; e: pod elongate, various colors, containing more or less big seeds of varoious colors.

To read this page in French

HYPPZ on line: Species (scientific names), Pests (common names), Glossary, Crops.

HYP3 : HYPP Phytopathology.

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