Surveillance for breakdown or change in the effectiveness of a resistant plant species or plant variety which relates to a change in the composition of the quarantine pest or its biotype, pathotype, race or virulence group.
faireachas maidir le miondealú nó athrú ar éifeachtacht speiceas plandaí frithsheasmhach nó cineál planda a bhaineann le hathrú i gcomhdhéanamh na lotnaide coraintín nó a bitíopa, pataitíopa, cine nó grúpa nimhneach;