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PHASEOLUS. French Bean and Runner Bean. [Fabaceae]

Three species of Phaseolus are recorded in Britain. These include the introduced French Bean (P. vulgaris), Butter Bean (P. lunatus) and Runner Bean (P. coccineus). Two dipterous miners, the polyphagous agromyzids Chromatomyia horticola and Liriomyza bryoniae, are recorded on Phaseolus in Britain. The agromyzids Liriomyza huidobrensis, Liriomyza sativae and Liriomyza trifolii, polyphagous pest species of ornamental and vegetable crops occasionally intercepted at UK points of entry, are recorded on Phaseolus. Liriomyza huidobrensis and Liriomyza trifolii have been found under glass in England and Wales. All populations have been and continue to be eradicated. Elsewhere the agromyzids Liriomyza bryoniae, Liriomyza congesta, Liriomyza huidobrensis, Liriomyza sativae, Liriomyza strigata and Liriomyza trifolii are recorded mining Phaseolus. No non-dipterous miners are recorded on Phaseolus in Britain.

Runner Bean - Phaseolus coccineus

Key for the identification of the known Diptera mines in Britain.

1> Mine linear, whitish, both upper and lower surface. Pupation internal, at the end of the mine, with the anterior spiracles projecting through the epidermis. Mine of Chromatomyia horticola on Papaver rhoeas. Image: Willem Ellis (Source: Nederlandse bladmineerders) Chromatomyia horticola (Goureau) [Agromyzidae] -> A short, irregular, linear upper surface mine on any part of the leaf. Also recorded from young pods Mines of Liromyza bryoniae on Tomato. Image: Crown copyright - courtesy of CSL Liriomyza bryoniae (Kaltenbach) [Agromyzidae]

Last updated 11-Sep-2008  Brian Pitkin

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