| Abstract: | UK plant health measures are based principally on the Plant Health (Great Britain) Order 1993 and the similar Order covering forestry pests, both implementing EU Directive 77/93/EEC, as amended. Nematode species of quarantine status are Aphelenchoides besseyi, Bursaphelenchus xylophilus, Ditylenchus destructor, D. dipsaci, Globodera pallida, G. rostochiensis, Longidorus diadecturus, Nacobbus aberrans, Rhadopholus similis, Xiphinema americanum sensu lato (non-European populations), and X. californicum. Soils are tested for freedom from Globodera spp. and virus vector nematodes under certain certification schemes and where necessary, for export crops. EU Marketing schemes require visual freedom from quality-affecting nematodes. Soil samples normally comprise 500 g of soil from 100 cores per 4 ha (or less). |
