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ARMORACIA. Horse-radish. [Brassicaceae]

Two introduced species of Armoracia are recorded in Britain, including Horse-Radish (A. rusticana). The polyphagous agromyzid Chromatomyia horticola is the only Diptera miner recorded on Armoracia in Britain. See BRASSICA. Elsewhere the agromyzids Chromatomyia horticola, Liriomyza bryoniae and Phytomyza rufipes and the drosophilid Scaptomyza flava are recorded mining Armoracia. No non-Diptera miners are recorded on Armoracia in Britain. Elsewhere one non-Diptera miner is recorded on Armoracia. A key to the European miners, based on characteristics of the mines, immature stages and where relevant the larval cases, recorded on Armoracia is provided in Bladmineerders van Europa. This includes Phyllotreta armoraciae, Plutella xylostella, Ceutorhynchus minutus, Phyllotreta nemorum, Phytomyza rufipes, Scaptomyza flava, Chromatomyia horticola, Liriomyza xanthocera and Liriomyza bryoniae.

British non-Diptera miners recorded on Armoracia elsewhere Ceutorhynchus minutus (Marsham, 1802) [Coleoptera: Curculionidae]   Leaf-mine: Rather small, untidy, full depth, often branched corridor, often close to the leaf margin. Sides irregularly eaten out. Frass in a greyish-green central line that is interrupted from time to time, sometimes partly in strings. In times of rain the frass may run out and appear greenish. Usually several mines in a leaf (Bladmineerders van Europa). Mine of Ceutorhynchus minutus on Raphanus sativus Image: Willem Ellis (Bladmineerders van Europa) More..

Last updated 22-Jul-2010  Brian Pitkin

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