QPs are listed pests absent from GB (or under official control) which pose an unacceptable risk to GB, as they would cause economic/environmental damage if introduced.
Bydd ‘n/a’ (ddim ar gael) wedi’i nodi ar rai parseli, naill ai am nad yw'r parsel hwnnw'n gymwys, neu am nad yw rhai gweithgareddau'n gymwys os gallent fod yn niweidiol i nodwedd amgylcheddol.