INDUSTRY BIOSECURITY PLAN FOR THE GRAINS INDUSTRY Threat specific contingency plan Barley stripe rust (Puccinia striiformis f. sp. hordei) Prepared by Colin Wellings and Plant Health Australia March 2010 PLANT HEALTH AUSTRALIA | Contingency plan for Barley stripe rust (Puccinia striiformis f. sp. hordei) Disclaimer The scientific and technical content of this document is current to the date published and all efforts were made to obtain relevant and published information on the pest. New information will be included as it becomes available, or when the document is reviewed. The material contained in this publication is produced for general information only. It is not intended as professional advice on any particular matter. No person should act or fail to act on the basis of any material contained in this publication without first obtaining specific, independent professional advice. Plant Health Australia and all persons acting for Plant Health Australia in preparing this publication, expressly disclaim all and any liability to any persons in respect of anything done by any such person in reliance, whether in whole or in part, on this publication. The views expressed in this publication are not necessarily those of Plant Health Australia. Further information For further information regarding this contingency plan, contact Plant Health Australia through the details below. Address: Suite 5, FECCA House 4 Phipps Close DEAKIN ACT 2600 Phone: +61 2 6215 7700 Fax: +61 2 6260 4321 Email: [email protected] Website: www.planthealthaustralia.com.au | PAGE 2 PLANT HEALTH AUSTRALIA | Contingency plan for Barley stripe rust (Puccinia striiformis f. sp. hordei) 1 Purpose of this document ........................................................................................................... 5 2 Eradication or containment decision matrix ............................................................................. 5 3 Pest information/status ............................................................................................................... 7 3.1 Pest details ............................................................................................................................ 7 3.1.1 Background ..................................................................................................................... 7 3.1.2 Life cycle and morphology .............................................................................................. 8 3.2 Affected Hosts ..................................................................................................................... 11 3.2.1 Host range ..................................................................................................................... 11 3.3 Geographic distribution ........................................................................................................ 11 3.3.1 Current distribution ........................................................................................................ 11 3.3.2 Potential distribution in Australia ................................................................................... 12 3.4 Symptoms ............................................................................................................................ 12 3.4.1 Plant parts affected ....................................................................................................... 12 3.5 Pest risk analysis ................................................................................................................. 13 3.5.1 Entry pathways for exotic rust pathogens ..................................................................... 13 3.5.2 Spread potential ............................................................................................................ 13 3.5.3 Establishment potential ................................................................................................. 14 3.5.4 Economic impact ........................................................................................................... 14 3.5.5 Environmental impact .................................................................................................... 14 3.5.6 Social impact ................................................................................................................. 14 3.5.7 Overall risk .................................................................................................................... 15 4 Surveillance ................................................................................................................................ 15 4.1 Overview of surveillance systems for cereal rust in Australia ............................................. 15 4.2 What additional surveillance is required to successfully detect Barley stripe rust? ............ 15 4.3 Delimiting survey and epidemiology study .......................................................................... 15 4.3.1 Sampling method .......................................................................................................... 15 4.3.2 Epidemiological study ................................................................................................... 16 4.3.3 Models of spread potential ............................................................................................ 17 4.3.4 Pest Free Area guidelines ............................................................................................. 17 5 Diagnostic information .............................................................................................................. 18 5.1 Current diagnostics for Barley stripe rust ............................................................................ 18 6 Control methods ......................................................................................................................... 18 6.1 Breeding for resistance ........................................................................................................ 19 6.2 Chemical management ........................................................................................................ 19 6.3 Cultural control ..................................................................................................................... 20 7 Course of action ......................................................................................................................... 20 7.1 Infected crop destruction strategy ....................................................................................... 20 | PAGE 3 PLANT HEALTH AUSTRALIA | Contingency plan for Barley stripe rust (Puccinia striiformis f. sp. hordei) 7.1.1 Destruction protocols .................................................................................................... 20 7.1.2 Decontamination protocols ............................................................................................ 21 7.1.3 Priorities ........................................................................................................................ 21 7.1.4 Plants, by-products and waste processing ................................................................... 21 7.1.5 Disposal issues ............................................................................................................. 21 7.2 Quarantine and movement controls .................................................................................... 22 7.2.1 Quarantine priorities ...................................................................................................... 22 7.2.2 Movement control for people, plant material and machinery ........................................ 22 7.3 Zoning .................................................................................................................................. 22 7.3.1 Destruction zone ........................................................................................................... 23 7.3.2 Quarantine zone ............................................................................................................ 23 7.3.3 Buffer zone .................................................................................................................... 23 7.3.4 Restricted Area .............................................................................................................. 23 7.3.5 Control Area .................................................................................................................. 23 7.4 Decontamination and farm clean up .................................................................................... 23 7.4.1 Decontamination procedures ........................................................................................ 24 7.4.2 General safety precautions ........................................................................................... 24 7.5 Surveillance and tracing ...................................................................................................... 24 7.5.1 Surveillance ................................................................................................................... 24 7.5.2 Survey regions .............................................................................................................. 24 7.5.3 Post-containment surveillance ...................................................................................... 25 8 References .................................................................................................................................