This Order amends the Plant Health (Wales) Order 2006 (S.I. 2006/1643 (W.158)) (“the principal Order”) to include emergency measures to prevent the introduction and spread of Chalara fraxinea T. Kowalski including its teleomorph Hymenoscyphus pseudoalbidus, a cause of ash dieback. In particular, the Order:prohibits the landing in or the spread within Wales of Chalara fraxinea T. Kowalski (article 2(7));prohibits the landing in or the movement within Wales of plants intended for planting of Fraxinus L. which are infected with Chalara fraxinea T. Kowalski (article 2(8));imposes additional requirements on the landing in or movement within Wales of plants intended for planting of Fraxinus L. (article 2(9) to (12)); andimposes additional requirements on the consignment from Wales to other parts of the European Union of plants intended for planting of Fraxinus L. (article 2(13)).