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A Robin's pincushion or bedeguar gall and fruits, rosehips, on the Dog Rose (Rosa canina) against a blue summer sky. These galls are caused by the lavae of the gall wasp Diplolepis rosae. Bedgebury Forest, Kent, UK. 29 August 2005 * This growth on a wild rose is called a Bedeguar Gall, or more picturesquely a Robin's pincushion. (Bedeguar comes from a French, and ultimately a Persian, word meaning 'wind-brought'). * Several D. rosae larvae form the gall, and they may been joined by the harmless inquiline cynipid Periclistus brandtii (Ratzeburg) and (as in marble galls) a complex ecology of parasitoids and hyperparasitoids. * The species consists almost exclusively of parthenogenic females. * This example is about 7cm in diameter. * Cambridge TL463614, 18 Jul 2002. * Synonym: Rhodites rosae


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pin cushion science nature plant botany weed green fruit red gall wasp pest disease colour color shrub rose family Rosaceae wildlife wild life BarnDigital Barn Digital Michael Grant
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