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Stufkens, M. and Bulman, S. 2002. <i>Nasonovia ribisnigri</i> a new aphid pest found on lettuces (<i>Lactuca sativa</i>) and <i>Ribes</i> spp in Canterbury. New Zealand Plant Protection. 55, (Aug. 2002), 437–437. DOI:https://doi.org/10.30843/nzpp.2002.55.3973.