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Our place. People, priorities and practice in weed management 14TH QUEENSLAND WEED SYMPOSIUM 4-7 DECEMBER 2017, PORT DOUGLAS, QUEENSLAND PLATINUM SPONSOR SPONSORSHIP OPPORTUNITIES GOLD SPONSORS SILVER SPONSORS BRONZE SPONSORS USB SPONSOR A Threat to the Wet Tropics MICONIA (PHOTO: DAF AND AND DAF (PHOTO: MICONIA QPWS) ~ ROACH CHRIS Weeds Wet Tropics: An Exceptional Ecosystem Current Programmes The Wet Tropics region houses Australia’s greatest diversity The Wet Tropics Management Authority collaborates with of distinctive and irreplaceable plants and animals within community, governments and landholders on monitoring just 0.26% of the continent: and eradication programmes for tropical weeds such as: limnocharis, mikania vine and three miconia species. ~ 65% of Australia’s fern species However vigilance is key, as many ‘sleeper’ weeds exist ~ 60% of Australia’s butterfly species now in the Wet Tropics, with the potential to proliferate ~ 40% of Australia’s bird species under the right conditions. ~ 42% of Australia’s freshwater fish ~ 30% of Australia’s mammal species ~ 30% of Australia’s orchid species The region’s close links to its neighbours and ideal growing climate makes it particularly vulnerable to invasive plants. MICONIA RACEMOSA FRUIT LIMNOCHARIS PLANTS, FLOWER AND MICONIA FLOWERS (PHOTO: DAF) (PHOTO: TRAVIS SYDES) SEED PODS (PHOTOS: DAF) The Wet Tropics Management Authority is committed to community education, awareness and participation as vital tools to prevent the introduction and spread of invasive species into the Wet Tropics. | wettropics.gov.au th The Authority is proud to support the 14 Queensland Weed Symposium as part of its ongoing work | [email protected] to protect biodiversity in the Wet Tropics from invasive pests. | 07 4241 0500 CONTENTS Session one: biological control – research investment AT LAST, BIOLOGICAL CONTROL OF BELLYACHE BUSH ............................................. 4 Dianne B. J. Taylor, Elizabeth L. Snow, Kerri Moore and Kunjithapatham Dhileepan ...... 4 UPDATE ON BIOLOGICAL CONTROL AGENT, ACERIA LANTANAE (LANTANA BUD MITE) ON LANTANA CAMARA IN NORTHERN QUEENSLAND ..................................... 10 Kelli Pukallus1, Michael Day2, Natasha Riding2, Judy Clark1 .......................................... 10 IMPLEMENTATION OF THE LAND PROTECTION FUND CO-INVESTMENT MODEL ... 16 Kristy Gooding ................................................................................................................ 16 Session two: eradication – two steps forward one step back ERADICATION OF RED WITCHWEED – ONE STEP AT A TIME! ................................... 21 Peter J. Austin1, Daniel C. Stampa1 and Joseph S. Vitelli2 ............................................. 21 SIAM WEED (CHROMOLAENA ODORATA) THE RECENT PAST AND OPTIONS FOR THE FUTURE .................................................................................................................... 27 David Green ................................................................................................................... 27 KOSTERS’ CURSE – A MULTI-AGENCY APPROACH TO MANAGEMENT ................... 32 Kelly Ashwood1, Damon Sydes1 ..................................................................................... 32 ADVANCING PRICKLY ACACIA MANAGEMENT THROUGH THE WAR ON WESTERN WEEDS INITIATIVE........................................................................................................... 39 Nathan March1, Wayne Vogler2 and Kunjithapatham Dhileepan 3 .................................. 39 UNDERSTANDING AND IMPROVING THE BEST MANAGEMENT PRACTICE OF MEXICAN BEAN TREE IN THE WILDERNESS OF TROPICAL NORTH QUEENSLAND. ........................................................................................................................................... 44 Michael Graham ............................................................................................................. 44 Session three: protecting values CONSERVING BLACK-THROATED FINCH HABITAT ..................................................... 50 Jaymie Rains .................................................................................................................. 50 LANTANA CONTROL ON EASTERN TORRES STRAIT ISLANDS USING SPLATTER GUN TECHNIQUE. ............................................................................................................ 56 Janine Buist2, John Lynn1, Aaron Bon1 and Boggo Gela1 .............................................. 56 BRIDGING BARRIERS THROUGH PARTNERSHIPS FOR WEED MANAGEMENT ON CAPE YORK ...................................................................................................................... 61 1 Peta-Marie Standley1, Vicki Wundersitz1, Wunthulpu Aboriginal Land Trust. ................. 61 Page Session four: biocontrol part two BROAD SCALE INTRODUCTION OF CROWN ROT IN WEEDY SPOROBOLUS GRASSES (GIANT RAT’S TAIL AND GIANT PARRAMATTA GRASS) ............................ 66 Jeremy Bradley and Cathy Eggert .................................................................................. 66 BIOLOGICAL CONTROL OF PARTHENIUM: PROGRESS ON THE REDISTRIBUTION OF ESTABLISHED AGENTS TO SOUTHERN QUEENSLAND ........................................ 72 J.T. Callander1, B. Shi1, S. Raghu2 and K. Dhileepan1 ................................................... 72 BIOLOGICAL CONTROL: NOT AS SIMPLE AS IT SEEMS .............................................. 77 Elizabeth Snow, Michael Day ............................................................................................ 77 Session five: invasive grasses TO BURN OR NOT TO BURN: USING FIRE TO MANAGE A COMPLEX GRASS ECOSYSTEM .................................................................................................................... 82 Wayne Vogler ................................................................................................................. 82 MANAGING BUFFEL GRASS TO PROMOTE SPECIES RICHNESS AND FACILITATE ECOSYSTEM RECOVERY ............................................................................................... 88 Melzer R.1 and Melzer A.2 .............................................................................................. 88 GIANT RAT’S TAIL GRASS: LESSONS LEARNT FROM CONTROL TRIALS AND LANDHOLDER ENGAGEMENT IN THE MACKAY WHITSUNDAY REGION ................... 94 Emily Wood .................................................................................................................... 94 THE POTENTIAL FOR FERTILISER TO CONTROL WEEDY SPOROBOLOUS SPP. IN CENTRAL QUEENSLAND: RESULTS FROM BYFIELD................................................... 98 John Reeve1, Stuart Buck2 and Leisa Childs3 ................................................................ 98 Session six: surveillance tools and approaches TESTING THE UTILITY OF NOVEL, PRE-EMPTIVE SURVEILLANCE TECHNIQUES TO ACHIEVE EARLIER DETECTION OF FIVE HIGH-RISK WEEDS. .................................. 104 Steve Csurhes, Duncan Swan, Matt Ryan and Lyn Willsher ........................................ 104 UAV’s – A SNAZZY TOY OR A REAL SOLUTION FOR AERIAL WEED SURVEILLANCE ......................................................................................................................................... 109 Jochem van der Reijden ............................................................................................... 109 BITOU BUSH SURVEILLANCE UAV TRIAL ................................................................... 113 Stacy Harris¹, Peter Trotter².......................................................................................... 113 WHAT CAN I DO WITH WEED CONTROL DATA? ........................................................ 119 Brooks1, S.J. ................................................................................................................. 119 SOME RAPIDLY EMERGING WOODY WEEDS IN SOUTH-EASTERN QUEENSLAND ......................................................................................................................................... 126 2 Sheldon Navie .............................................................................................................. 126 Page Session seven: informed decisions SURVIVAL AND BUOYANCY OF HYGROPHILA COSTATA STEM FRAGMENTS IN SALT, BRACKISH AND FRESH WATER. ....................................................................... 132 Setter, M.J.1, Setter, S.D. 1 and Styman, D.T.2 ............................................................. 132 IMPLEMENTING PEST PLANNING ON THE GROUND: KEEPING THE PIGS OUT OF THE CHOCOLATE PUDDING. ........................................................................................ 138 Geoff Lundie-Jenkins and John Hodgon ...................................................................... 138 GOOD NEIGHBOUR PROGRAM (GNP) – MANAGING PESTS IN THE FLINDERS SHIRE .............................................................................................................................. 143 Robyn Young ................................................................................................................ 143 SUCCESSFUL COMMUNITY ENGAGEMENT FOR WEED CONTROL ON PRIVATE LAND. CONSERVATION PARTNERSHIPS – CITY OF GOLD COAST ......................... 147 Lexie Webster, Todd Burrows and Donald Mackenzie ................................................. 147 Posters presentations: SIAM WEED DISPERSAL MECHANSIMS ...................................................................... 153 Brooks1, S.J., Setter2, S.D. and Gough1, K.L.

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