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Mimosa Pigra Management ) -i- Mimosa pigra management PROCEEDINGS OF AN INTERNATIONAL SYMPOSIUM Proceedings of an internationoa symposium Mimoa .. M.. nement G a , February 22-26, 1982 Chiang Mai, Thailand G. Lamar Robert and Dale H. Habeck Co-editors Published by the International Plant Protection Center with partial support of a contract with the U.S. Agency for International Development. 000 IPPC documenL no.48-A-83 March 1983 000 Views and interpretations in this publication are those of the authors of the papers presented, as edited, and are not attributable to the U.S. Agency for International Development nor any individual acting in the Agency's behalf. '-7 SupIXort f:or this puvlication was made possible, in part, throuqh a contrct- bctven te U.S. Age!ncy for ]nt-rntional Develoierit and Oriegon Sr to- Univrsit,,,, cordnated by thi Tnternaticnal Plant P-otection Ci nter. Single copies are 0lvailab.e, without charme to individuals, instii-ttions, or orqanizations that are bothb non-ccmnercial and aictively wo17iz'n- in a less developec, coultry; to al] others, USS5 u (ropy, suirface p_ostago paid; from: Internationavl Plant P,)tection Center Oreoon State Universitv Cor,'va.]is, OR 97331 / USA N-)rd proces-,inq and taylx, transcriptions by: M.R. 1l4.sch Di,] ication dnsi qn and prxuction: A. E. Deutsch 2 Table of Contents Foreword............................................................ 5 Symposium agenda..................................................... 7 Opening address - Uthai Nakpreecha, Deputy Governor, City of Chiang Mai ............................................ 1I Papers 1) Background, threat, and distribution of Mimosa pira L. in Thailand -Banpot Napmpeth ................................... 15 2) Economic assesmerit of Mimosa pigra in Thailcmd - G. lamar Robert........................................ 27 3) The distribution and threat of Mimosa pigra in Austral.ia - I.L. Miller ...................................... 38 4) Role and function of Mimosa piqra in reservoirs - Pong Suwignyo and J. Wiratmodjo .............................. 51 5) Habitats, seed germination, and growth of Mimosa pigra L. - Hidejiro Shibayama, Paitoon Kittiponq, Chai-um Prermisthira, Taee Sangtong and Chaiyot Supatanakul... ........................ 56 6) Research activities or Mimosa pigra n Australia I.L.'Miller, M.O. Rankin, and S.E. Pickering................. 63 7) Seed production and germination of Mimosa pigra L. in Chaing Mai, Thailand - Onnop Wara-Aswapati... ............. 81 R) Strateqies for the control of Minosa pig in AAistralia- I.L. Miller and fS.E. Pickering ................ 85 .3 9) Some notes on chemical control of Giart Mimosa U. Suwunnamek............................................95 10) Some ccruents on chemical control of Mimosa piqra with ephasis on aerial application - Chanuan Ratanawaraha ................. .................... 99 1) Chemical control of Mimosa pigra L. in Northern Thailand - Paitoon Kittipong ................................. 107 12) Mimosa pigra management in irrigation systems in Thailand - Saowanee Thamasara ............................... 109 13) }ospcts, for biological control of vimosa pi a L. in Australia - K.L.S. Harley, J.A. Winder, R.C. Kassulke and D.P.A. Sands ......... ..................... 113 J4) Potential for biological control of Mimosa i.a- Dale H. Habeck and Steven Passoa ............................. 115 15) Preliminary screening of insects for biological control of Mimosa pigra L. in Thailand - Banpot Napompeth. fi, .. a.................. I....................... 121 Panel Discussions 1) Integration of control strategies .............................. 129 2) International collaboration on biological control.. .......... 130 3) International collaboration on Mimosa piqra management ........... 131 Conclusions and Pecorrmndatjons ..................................... 135 Symposium Pattiepants . ... ... 137 4 J~reword i. The thorny sensitive plant Mimosa pigra occurs in many countries and, in virtually all, isconsidered to be a weed. However, only minimal inter­ national ccrmmunicatlon has occurred regarding M. pigra management strategies. For example, the weed is serious enough to be considered noxious in both Australia and Thailand, yet both have pursued developmen of their o-n man­ agement strategies in virtual isolation. Lack of communication among re­ 'searchers can result in duplication of effort and unnecessary expenditure of scarce funds. W4reover, without international collaboration among researchers, managemrent strategies adopted by a country may be less than optimal. An international symposium on M. pigra management was conceived of as a vehicle to help alleviate that problem. The symposium, held February 22-26, 1982, inlChiang Mai, Thailand, was designed to achieve this goal by means of 3 mechanisms. 1) by providing an international forum for M. pigra investi­ gators to share their latest research findings; 2) by offering M. pigra researchers from different nations the opportunity to establish contact with counterparts personally, rather than through written cormmunications only; and, 3) by establishing a mechanism to facilitate future inter­ national collaboration on M. pigra management. This publication, the proceedings of the smposiim, serves as a record of the event and is intended to he used as a working paper and research tool rather than an official iocu ent. For that reason, it does not include a ver­ batim transcript of the entire 5 days of meetings; rather it siumarizes rele­ vant discussions, though most of the papers presented are included in their entirety. The proceedinqs includes 3 major sections: papers, panel discussions, and conclusions/recnmeindationls. Each paper is followed by relevant questions/answers and conmnts. Panel discussions have been sun-marized and the key pnints of each set forth. The closing plenary sessions'also are stn­ mi.zed and the reconmndations of the symposii~n outlined. er psin ulnd A list of symposium participants and their addresses is included.; The symposium was hosted by C. Lamar Robert, International Plant Pro­ tection Center, Orecon State University, Corvallis, Oregon.- Preparations for the symposium were made by Banpot Napampeth, Director, National Biological Control Research Center, Bangkok; Dale Habeck, International Plant Protection Center Aquatic Weed Program, University of Florida, Gainesville, Florida;-/ and G. Lamar Robert. Funding was provided by the IPPC Aquatic Weed Program and the National Biological Control Research Center. It is hoped that the rapport established among researchers at the sympo­ sium and the concomitant exchange of information achieved there will continue in the future and that the countries affected by the weed will continue to jointly seek solutions to their mutual problems. All indications to date are that a viable international network for collaboration on M. piqra management has in fact been established: the symposium was indeed a success. -/ Current address: Dept. of Agricultural Economics, Faculty of Agriculture, Chianq Mai Univ. Chiang Mai 50002, Thailand. 2/ Current address: Entomoloqy and Nenrotology Dept., Univ. of Florida, Gainesville, FL 32611, USA. 6 ymposium Rgenda Monday February 22, 1982 0800 - 0900 Registration 0900 - 0930 Opening Address and Ceremony (The Honorable Uthai Nakpreecha, Deputy Governor, City of Chiang Mai) 0930 - 1000 Welcome Address Introduction to the symposium Introduction of the participants (Banpot Napompeth / Dale H. Habeck) 1000 - 1030 Coffee break 1030 - 1100 Background, threat and distribution of Minsa pigra L. in Thailand (Banpot Napompeth) 1100 - 1200 Film presentation: Mimosa pigra in Thailand Discussion on film and related problems 1200 - 1300 Lunch 1300 - 1500 Fconomic assessment of Mimosa piqra in Thailand (G. lamar Robert) 1500 - 1530 , Coffee break 1530 - 1630 Mimosa pi problems in Australia (K.L.S. Harley) Mimosa pigr prmblems in Indonesia (Pong Suwirgnyo and J. Wiroantidjo) 7 Tuesday February 23, 1982 0900 - 1600 Ground and aeria'l survey of Mrhsa Either a helicopter or a light airplane will be provided for aerial inspection of Mimosa Digra. A limited number of seats will be provided. Wednesday Februar' 24, 1982 0830 - 1200 Current research and control activities: - Australia - Thailand - Indonesia - CSIRMJ activities - IPPC activities 1200- 1300 Lunch SESSIN II: COIROL STRATIEFS FOP. M114OSA PIGRA 1300 1330 Strateqies for the control of Mimosa pigra in Australia (Ian L. Miller) 1330 - 1350 Some notes on the chemical control of Giant Mimosa (Umporn Suwunnamek) 1350 - 1.420 Sane conrtents on chemical control of Mimosa piqra with emphasis on aerial application (Chanuan Ratanawaraha) 2420 - 1440 Chemical control of Mimsa pigra L. in Northern Thailand (Paitioon ittiponq) 1440 - 1500 Mimosa p.ra management in i rriqation systems in Thailand (Saowanee Thamasara) • ,/ 1500 - 1530 CC)f fe lhreak 1530 - 1630 Panrl dJicnsion in "INTMPATT(N OF O.AKPOL STPA9T-IES" Cha] nfm-ml: Pai toon l1K Iti.pmq Panel mebiers: Tan I. Mil.ler Uinon Sux~'unanr-jk lbursdayFehruary 25, ] 9R2 SE8SITF I' I: POITIT-IAL, OF 131101,(XiCAL CCXfJTPOL OF MIMOSA PIOPA 0830 - 900 Princi pg<s of hlocitic'a-11 control, of weedlis (1K. 1,. lr I,') 0900 - 0930 CSiPO ac M,,'t im(' hi)iol mical control of Mnsa 0930 - 1000 I PIC act 'i, i,' on 1)1io0x-i0 cal1. rcotrol of Mieysa piqrIa ( 11 11.I lal beck) 1000 - 1030 Coffee hr,-,; 1030 - 1.100 NT'CPC acti vities on bioloqical, control of Mii m sa P-!ra 4 (BnjI.I X : N-loT eT-)t-h) 1100 - 1200 Pane]1circussi m (;p I.NT1,P~hTI(YAL COI.AJe-P.OPATTON
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