the NEWSLETTER of ThelWeed Society of Inc ISSN 1325-3689

#8 DECEMBER 1996

Giant Grass- No ’Weak Links’ Found

ccording to John Betts from NSW-Agriculture at Grafton,. A studies on giant Parramatta grass (Sporobolus indicus var. africanus) at the Universities of New England and Queensland have not revealed any weak links in the life cycle of this particularly troublesome weed that could be readily utilised in its management. - FEATURE ARTICT ,E

WEED SOCIETY The seed has a sticky coating when EXECUTIVE ...Giant Parramatta wet and will readily stick to smooth surfaces. Therefore, seed is most John Cameron Grass - No ’Weak (President) likely to spread when the grass is wet Links’ Found .with rainfall or heavy dew. Dan Austin (Vice President) Some viable seed will pass undigested through the gut of cattle. It takes Leon Smith Studies on ’what makes giant Parramat~a (Secretary) about 6-7 days for all the seed to pass grass tick’ and biological control of this through. However, in the field this Alex McLennan weed have been completed in the pail method of dispersal does not appear to (TreasureO year. The studies were funded by the be important as cattle rarely eat the Brian Sindel seed heads. Seed sticking to hides, or Meat Research Corporation and conducted vehicles,, etc.. is a much more likely (Newsletter Editor) by Todd Andrews at the University of New England and Shane Heatherington at means of dispersal~ Mike Barrett the University of Queensland as part of Botany .experts have predicted that Gary Beehag PhD degrees. Jim Dellow giant Parramatta grass will spread to John Betts summarises some of its environmental limits despite all ¯Lawrie Greenup the major findings of both studies as Mike Hood efforts to contain it. They reason that Jane Mallen-Cooper follows. our modem lifestyle, rapid transport Peter Michael and the weed’s dispersal mechanisms Allan Murphy No weak links werd found in the life Robert Plumbe make this inevitable. Val Stubbs cycle of gi~t Parramatta grass. Gordon Tink Giant Parramatta grass is attacked by a : . J0hr~ Toth . In dense infestations seed production fungus called Bipolaris which causes !~-Bob Trouhcd potential can be phenomenal, up to a fake smut disease of the seed head. 750,000 seeds per square metre. Two species of this disease organism Editor:. Brian Sindel infect giant Parramatta grass. Department of Agronomy Large’ soil seed bank reserves were and Soil Science, measured on heavy infestations, up to The general conclusions of the-biological University of New 20,000 seeds per square metre. England, Armidale 2351 control study using the above organisms Ph: (067) 733 747 -were: Fax: (067) 733 238 Email: Projections of seed longevity in the [email protected] soil indicated that Some viable seed the disease occurs too late in the may still be present in soil 10 years season to restrict the greatest seed fall after seeding. Secretary: Leon Smith event; 8 Darwin Drive, Lapstone 2773 Seed germinates best when there is a the plant appears to compensate with ptgfax: (047).393 564 daily fluctuation of soil temperature greater numbers of seed heads between 30°C maximum and 15°C produced when disease infected and minimum. This generally coincides A ~ Weea~ is published greater germination of seed following with October/November and four times per year by lower seed fall; the Weed Society of March/April. New South Wales, the disease organism also attacks PO Box 438 Seed germinates best when it has been Wahroonga 2076. native Sporobolus species (rats tail exposed to light. Implications of the grass). above two points is that bare soil Printed by the University favours germination of giantThe above factors appear to preclude giant of New England Parramatta grass - this is certainly Parramatta grass from biological control at observed in the field. Good ground this stage. ¯ Packaged by the Challenge cover and strong growth of other Foundation in recycled pasture species reduces infestations. plastic

page 2 ,,4~/~7¢/ee, #8 DECEMBER 1996 FEATURE ARTICLE

Other Work ¯ evaluation of some Swazi grass Other current work on giant Parramatta types that may be useful competitors grass includes: against giant Parramatta grass.

getting the best from giant For further information on this Parramatta grass through chemical aggressive grass weed contact: Grafton means using low rates of glyphosate Research Station (Phone 066-420 420). applied with a pressufised wick Cl wiper. This is the "living with it" approach; (Adapted from Beef News, April issue, 1996) selective herbicide application with a pressufised wick wiper, especially to scattered infestations; Serrated Tussock - Biocontrol to Add to Strategy

ver the years biological control ~; A management strategy for of serrated tussock (Nassella sedated tussock has recently be O trichotorna) has been discussed developed in Victoria. There are also and abandoned and rediscussed. The committees such as the Upper biggest problem foreseen is its’ closeMurrumbidgee Catchment Coordinating relationship to the native Stipa species Committee and the Cooma-Monaro which form a very important part ofShire who have-.brought together a native pastures. In 1976, Dr M Wells number of groups and organisations to from South Africa visited South Americadevelop a coordinated approach to but found no insects which appeared to serrated tussock control. This will be host specific. In 1988, the South include facilitating regional working Africans again commissioned a surveygroups, coordinating research and with results not looking too promising. assisting with regional control programs. Dr Wells also discovered that already had a range of insects attacking serrated tussock, but these were having Over the years biological control of serrated no effect on the overall problem. In 1993, pressure was again tussock (Nassella trichotoma) has been discussed rising to f’md a biological control and abandoned and rediscussed. solution to the serrated tussock problem. People were writing to Ministers trying to secure Government funding, but to no One of the major problems avail. Shire Councils started raisingforeseen is the use of Frenock for money themselves to fund a search control. It is used solely for control of program in South America, however, not serrated tussock, and therefore has a enough was raised and the issue again relatively small market, and is also a by- quietened down. A search conference product of the CFC process and unlikely was held in Berridale in 1994 which to be available in the not too distant looked at the issue of management rather future. than biological control.

AG~dWeed #8 DECEMBER 1996 page 3 FEATURE ARTICLE

In 1995 Brace Auld from NSW die back. The fungus is currently being Agriculture secured funding from theidentified and Dr Evans is now culturing International Wool Secretariat to send the strain preparing for host specificity Dr Harry Evans (International Institutetesting. The initial tests will be carried of Biological Control) to Argentina to out on closely related Danthonia and look at pathogens for control of Bathurst Stipa species. If the fungus does not burr. In liaison with CSIRO Division ofinfect these species, funding will be Entomology, Bob Sproule (Ns~W sought to broaden the testing to other Agriculture) and Gratton Wilson grasses and cereal crops with the closest (Cooma-Monaro Shire) raised the fufids relative in the cereal crops being rice. required to extend that survey by One week to look at pathogens on serrated tussock. (Reprinted from Weed Watch, the One unidentified fungus withexternal newsletter of the Cooperative potential was found at 10 of the 17 sites Research Centre for Weed Management surveyed. The fungus attacks the root- Systems, Issue no. 1, June-October stem interface and causes the tussock to 1995)

From Abseiling Scouts to a Little White Moth - the Battle with Bit0u Bush Continues

itou bush (Chrysanthemoides A 1994 terminating report to monilifera rotundata) is rated as NSW Environmental Trusts produced by B the worst pest plant in the J Toth, P Milham and R Holtkamp Australian coastal environment, (NSW Agriculture) has presented some restricting access to beaches and of the results on bitou bush which have destroying native bushland. It was been attained using chemical control and originally planted during the 1950s to how they can be implemented in an stabilise sand dunes after mineral sand integrated control program. One of the mining which it did so effectively thatinmost exciting results from the aerial the process it managed to displace native spray trials conducted between 1989 and flora, turning vast stretches of coastline 1993 was at least a four fold reduction in into a monoculture. herbicide rates used for bitou bush There are six sub species of control. Trialing of reduced water Chrysanthemoides monilifera in South volumes during aerial spraying has also Africa, but fortunately only two of thembeen completed. A number of trials occur in Australia, C. monilifera were conducted looking at the efficacy monilifera (boneseed) and C. monilifera of chemicals and the effect of adjuvants rotundata (bitou bush). Bitou bush on efficacy and selectivity. currently infests coastal areas of One trial assessed the sensitivity southern Queensland, NSW and Lord of native plant species to herbicides. At Howe Island while boneseed infests the time of the grant proposal a herbicide coastal areas of southern NSW, Victoria, tolerance ranking, had been developed south-eastern South Australia and for seven native species present in Tasmania. substantial numbers at Bherwerre Beach, Jervis Bay. The use of tube plants at page 4 AG~dWeed #8 DECEMBER 1996 FEATURE ARTICLE

Jervis Bay and observation of plant 50% and 70% in flower and fruit communities at Hill 60 (Port Kembla) production, respectively. and Hawks Nest extended the tolerance The black boneseed beetle ranking by a further 82 species. The (Chrysolina sp.), the blotched boneseed observations (being conducted by the leaf beetle (Chrysolina picturata), and University of Wollongong) showed thatthe painted boneseed leaf beetle, C. none of the 89 species were substantially oberprieleri, have been released on affected by Roundup applied from the boneseed in Victoria, Tasmania and air at 2 L/ha and current experiments are South Australia. Small releases of the expected to further extend the database. black boneseed leaf beetle have also Research also showed that bitou bush been made on bitouibush in NSW. As was more susceptible in winter to both yet these have not become established. Roundup and Brush-off whereas native The bitou seed fly (Mesoclanis polana) plants were least susceptible during and the bitou tortoise beetle (Cassida winter, making this a much moresp.) were approved for release in 1995. practical time to spray. Releases of both insects were planned A pilot study was conducted into for bitou bush sites in northern NSW in the fate of herbicides with the report late 1995-96. The highly damaging leaf recommending that before either roller moth (Tortrix sp.) has been glyphosate or metsulfuron methyl is used imported for host specificity testing on a large scale in a control program the along with continuation of testing on two questions of persistence and mobility other seed flies Mesoclanis magnipalpii must be addressed. (greater bitou seed fly) and M. dubia. The trials at Jervis Bay hive Both flies appear to be specific to C. been so successful that the Australian monilifera. Nature Conservation Agency has now adopted aerial spraying as part of the management strategy for control of bitou There are six sub species of Chrysanthemoides bush in the Jervis Bay National Park. Aerial spraying has also been adopted in monilifera in South Africa, but fortunately only over 565 ha from Pottsville (near Tweed two of them occur in Australia... Heads) to Port Kembla. More than 300 ha of this is in National Parks. The possibility of incorporating Although effort has so far biological control with a chemicalconcentrated on classical biological control program was also looked at. The control with exotic insects, a recent trials conducted on the bitou tip moth study by E Cother, R Gilbert and A (Comostolopsis germana) showed it can Nikandrow from NSW Agriculture, clearly be incorporated into an integrated looked at the potential of using naturally control. occurring, indigenous fungal pathogens The biological control program as mycoherbicides. Forty eight sites for both bitou bush and boneseed was were sampled in spring 1992 and/or initiated in 1987. Since that time 6 autumn 1993; 31 sites were sampled in insects have been approved for release. spring 1993 and autumn 1994. At each The first was the bitou tip moth which site die-back lesions, leaf lesions and/or has now been released at over 55 sites. symptomless tissue were sampled from The most spectacular establishment is at bushes at random within an area of Port Macquarie where the moth has several thousand square metres. A total spread up to 3 km north and in excess of of twelve different disease symptoms 5 km south from the release point since were identified from the 600 samples 1989. Larval densities in excess of 400 taken during the survey. larvae/m2 were found during 1991. Phomopsis sp. was recovered in These densities resulted in reductions ofrelatively high frequencies from almost all lesion types. The survey has

.,4~a~Taee, #8 DECEMBER !996 page 5 WF.ED WATCH

identified a number of potentiallysources:- Australian and New Zealand pathogenic fungi associated with a rangeEnvironment and Conservation Council of die-back and leaf lesions. The (ANZECC), NSW Environmental Trusts, screening of representative isolates for and the Commonwealth Government. their ability to produce disease Overseas work is conducted by CSIRO (pathogenicity) in bitou bush is now inEntomology with host specificity testing progress and considerable scope exists being conducted by the Keith Turnbull for studying synergism between in~ects Research Institute (DCNR), Frankston. and fungi. Dune care and other volunteer groups have been physically ren~oving(Reprinted from Weed Watch, the the weed, which is particularly effectiveexternal newsletter of the Cooperative in small areas of high conservationResearch Centre for Weed Management significance. As part of an initiative inSystems, Issue no. 1, June-October the Shoalhaven area, groups of scouts 1995) have abseiled on the cliff faces clearing bitou bush in their path to obtain merit towards a particular scout badge. Larger scale control using manual clearing isBitou Bush at not practical as it is too labour intensive. With both physical and chemical removal of plants, the process must be La Ferouse repeated year after year until the soil seed reserve is exhausted or the In this article, Dean Pryke, a field surrounding native vegetation out- officer with the National Parks and competes emerging Chrysanthemoides Wildlife Service, describes a case study seedlings. Regeneration of cleared areas for control of bitou bush at La Perouse is a vital part of the whole control in . process. The study site is 2 ha of land located between Congwong Beach, the Snakepit, Anzac Parade and the Golf Links Road, within Botany Bay National Park (La Perouse). Prior to bush regeneration works the site was completely smothered in bitou bush. It was approximately 2-3 metres high and dominated up to 90% of the vegetation. Bush regeneration commenced in 1992 by NPWS field staff and day-release prison labour (from Long Bay Jail).

Removal technique The bitou bush was removed using the cut-stump method. The branches were placed in piles scattered across the site, with the intention to burn them. 0 Bitou bush having taken over the for-dune area along Emerald Beach Use of fire on the NSW north coast. In May 1994, ,NPWS set fire to the entire site. It was a.~ery hot fire, turning weed Funding for the range of piles into a moonscape. After the fire, research has come from a number of we left the site to its own devices to

page 6 AG~IWeed #8 DECEMBER 1996 observe the patterns of regrowth. The faster than most native species) will dominant species were dense clusters of out-compete all vegetation, creating bitou bush and smaller individual Acacia a dense monoculture. longifolia plants. A number of new post-fire weeds also began to grow in the Fire is also an effective tool to ashes, such as fLrebceed (Senecio sp.), ink stimulate native regeneration. Fires weed (Phytolacca sp.), fleabane (Conyza need to be planned for frequency and sp.) and blackberry nightshade (Solanum intensity. Pile i bums should be nigrum). distributed across the site, tO maximise the ~ potential for Post-fire weeding regeneration. Follow-up weeding commenced between 10 to 12 months after the fire. The Certain colonising natives (i.e. clusters of bitou bush had reached one bracken) and weeds (i.e. blackberry metre high. Bitou bush was removed by nightshade and wild tobacco bush) hand (before it was able to flower) and can be used as nursery crops for left on sand to act as a mulch. During other natives, vI this exercise we uncovered numerous Acacia longifolia seedlings, which had (Reprinted from The Regenerator - been dwarfed by the bitou. Newsletter of the National Parks and Blackberry nightshade was Wildlife Service (Sydney District) assisting native regeneration by Volunteer Program - February 1996) providing shelter for natives and protecting tubestock from marauding rabbits. This weed prefers direct sunlight and will die off once a canopy isTravel Study established. A decision was made not to remove the blackberry nightshade. Grants Available

Outcome Travel Study Grants, funded by the On inspecting the site in late 1995, Weed Society, are ’now available to native species dominate the site. Only financially assist individuals to attend minimal follow-up is required to weed conferences or to travel on specific scattered bitou bush seedlings. interstate or overseas study tours in the However, other invasive weeds period from 1 July 1997 to 30 June 1998. have now started to occur, such as turkey The grant is open to persons over 18 rhubarb (Acetosa sagittata), Croftonyears of age who are involved with weed weed (Ageratina adenophora) and research, extension, regulation or wandering Jew (Tradescantia albiflora). practice. Studies of limited interest to And, more recently, the water weed the Society will not be considered. Ludwigia sp. has also started to appear. Applications will only be considered from persons who reside in Summary NSW 6r the ACT. Members of the From our experiences, we have learnt Society may be given preference. Rarely several things. will the grant meet the full expenses of travel so applicants must arrange Fire is an effective tool to stimulateadditional funds from other sources. germination of bitou bush. It isApplicants attending conferences are estimated that 75% of the bitou bush expected to contribute to the conference. seed bank will germinate within the Grantees are expected to return first year after a fire. It is vital youto service within NSW. They will be have enough resources to undertake required to submit a succinct written follow-up weeding at this stage. If report for publication in this newsletter not, the bitou bush (which grows

,4~,o,¢Wee, #8 DECEMBER 1996 page 7 LOCAL NEWS

soon after returning to duty and/or pass The Society sponsored the visit on results of the assignment to other to NSW of Prof Jim Kells, a weed workers in an appropriate manner, e.g. extension specialist from Michigan State seminar or meeting. University, who gave a seminar at Applications are to be forwarded ARVC, Orange, visited farmers and by 1 May 1997 to: The Secretary, The agricultural chemical representatives at Weed Society of New South Wales, PO Cowra and gave the after-dinner speech Box 438, WAHROONGA 2076.. ~ at the Annual Dinner. Prof Kells gave Application forms are a~ail~ble an overview of Michigan agriculture and from the Secretary, Leon Smith, at the the development of herbicide resistance above address or by telephoning/faXing there. (047) 393 564. The high standard of the newsletter was maintained by Brian Sindel in 1996 and new membership application forms .were printed using the 19 9 6 Annual colours and format of the newsletter. A list of members and their interests was prepared and will be distributed in 1997. Report The Society had displays at the A year the Lge of the Weed Australian Turfgrass Research Institute Societ~ of NSW Symposium and the l lth Australian Weeds Conference in Melbourne. An article and advertisement about the The major .event of the year was a two Society was contributed to The Land day seminar at the Lakes Golf Club, Newspaper supt~lcment for Weeds Mascot, on management of weeds in Awareness Week. Negotiations are wetlands. Over 100 people, including underway with ATRI regarding an several from interstate, attended the Aquatic Weeds ID workshop for next seminar over the two days. The first year. day dealt with the weed problems and The Society met its obligations management methods used in wetlands, under the Articles of Incorporation and while demonstrations and field site ~;isitshas procured a Common Seal. to specific weeds and Situations in the President, John Cameron is investigating Botany Wetlands occurred on the second holding of regional activities for Society day. The AGM of the Society was held members who are unable to come to following the first day of the seminarSydney. These activities would be and twenty three people attended. sponsored by the Society. Thirteen new A Travel Study Grant of $200 members joined the Society in 1996 and was awarded to Mark Gardener, a CAWSS delegzt-~ for the next three graduate student from the University ofyears will be J Cameron and L Smith. New England to assist with travel to The Society will be making a submission South America to study Chilean needle regarding the draft NSW Noxious Weed grass, a problem weed on the Tablelands Strategy Document. of NSW and Victoria. Weed Society prizes were awarded to students from the University of New England, Charles Sturt University and Sydney University.Members Matter Eric Cuthbertson, a foundation member of the Society represented the Society at the prize giving ceremony at Charles Subscriptions Sturt University. For the first time one 1997 subscriptions have now been of the awardees accepted an offer of mailed out. The financial year of the complimentary membership of theSociety is 1 October 1996 to 30 Society. September 1997. A cut-out remittance page 8 A G~dWeed #8 DECEMBER 1996 LOCAL NEWS

advice has been provided to members Robert Blackall, Garigal National Park, this year. To assist the Treasurer Forestville; (honorary) in keeping our f’mancialPaul Bourne, Hawkesbury Heights; records, please use the cut-out Ken Bunn, Pelaw Main; remittance section when paying yourJeff Burton, Homsby Shire Council, subscriptions, v~hich if you haven’tHornsby; already done, we hope you will do soon! Richard Carter, NSW Agriculture, Thanks. Orange; , Toni Commens, Charles Sturt Missing Members University, Wagga Wagga; The following people have movedPhil Da-Pra, Riverwood; without providing us with theirPeter Ellmer, Londonderry; forwarding addresses. Does anyone Rod Ensby, NSW Agriculture, Grafton; know .their whereabouts? If so, please A Featherstone, East Maitland; give their new addresses to our Secretary Anthony Grimm, Cooma; or have them phone Leon. His address Philip Hansen, Queanbeyan; and contact phone and fax number are Kerry Holmes, Broken Hill; listed on page 2 of this newsletter. Laurie Jackel, Rochester, Vic; Peter Jensen, Leichhardt; T Condon Diana Kureen, Concord; Louise Gall GR Matthews, Bellingen; John Garner Terry Meader, Marrickville West; D Howell Narelle Montgomery, ANCA, Canberra; Geoff Modra Paul Mulholland, Raymond Terrace; Robert Moorefield AnniParks, Carlingford; Geoff Pelizzo Pat Pike, Mt Colah; Chris R)an Anna Ranke, East Maitland; Brian Rubzen, Wagga Wagga; Many thanks. Rick Rundell-Gordon, Swan Hill, Vic; Ursula Taylor, University of New England, Armidale; Influx of New Members James Wilding, Maiden Gully, Vic; We welcome the influx of new members Annette Williams, Unanderra; and to the Society who joined the other 250 Kerry Yeend, Maitland; or so members in the last few months of 1996. See the 1996 annual report in this newsletter for a summary of the year and Have Your Say events to look forward to in 1997. ,~ ~ Wee~ is open to contributions If by any chance you move from all members of the Society so if address in 1997 then please let the you have an article or item of interest Secretary know at the address on page 2 then please pass this along to the Editor as soon as possible to avoid sending out (address on page 2) for inclusion in a the Newsletter only to have it returned future addition. Letters to the Editor are with ’Not Known at this Address’ also welcome so go ahead and have your stamped all over it. This plea is to allsay on weed issues affecting NSW and our members - please remember your beyond. Don’t let this stop you having Weed Society when you’re notifyingyour say, but if you can send your people of an address change! contributions in electronic format (ie. on Our new members are: disk or by email) then that just makes the job of reproduction that much easier. John Abbey, Bradbury; Suggestions for possible improvement of Roger Baker, Kerang; the Newsletter to better meet your needs Mark Beharrell, Collaroy Plateau; can also be passed on to the Editor.

AGoodWeed #8 DECEMBER 1996 page 9 BOOKS

Corrections to Internet Addresses Other Some members found it difficult to access the Intemet addresses published Good ’Reads’ in the last issue of,.4 ~,~g 7/,’ee,. So di, d I! The address for ’on-line pestl.,clde Global Herbicide Directory newsletters’ had two letters transposed. The correct part of the address slipuld Previously advertised in ,,4 ~ 74,’eed, read ncsu not nscu. My apologies! the Global Herbicide Directory is now available at the special price of US $40 ($85 discount). The GHD is an up-to- date, easy-to-use reference that brings Publishers Move together all experimental and commercial herbicide compounds and From 1 December 1996, the address of the companies who discovered them the RG and FJ Richardson, publishers of with an overview of the world herbicide Plant Protection Quarterly and The market segmented by major crops, Biology of Australian Weeds, will be PO countries, chemical class and discovery Box 42, Meredith, Victoria 3333. companies. Tel/Fax: 03 52861 533 Email: Available from Ag Chem [email protected] Information Services, 6705 E. 71st Street, Indianapons, IN 46220, USA. Phone (317) 845 0681, Fax (317) 841 Weed Awareness 1210. Pdcegrass the Video Goes National Did you know that Port Sorell in Tasmania has Australia’s second largest Bob Trounce was a major organiser of infestation of ricegrass (Spartina Weed Awareness Week in NSW in anglica)? You can see the extent of the 1996. Symbols such as Woody the problem on video rather than wade Weed were borrowed from the through waist deep mud, thanks to the Queensland Department of Natural Rubicon Coast and Landcare group. Resources where the successful The video shows how ficegrass can be ’Weedbuster’ day was established. controlled through the slashing- Keith Noble and Debra Beck from smothering teck_ " 21es developed by the Queensland and the Cooperative group in conjunction with the Research Centre for WeedManagement Department of Primary Industry and Systems have expressed their enthusiasm Fisheries. for Weed Awareness Week and have The 14 min video ($29.95 offered the use of their logos and other including postage) is available from information and cooperation for a Rubicon Coast and Landcare Inc., PO national approach to ’Weedbusting’. Box 48, Port Sorell, Tasmania 7307 The aim is to increase community(Phone Julia Butler on 03 6428 6072). awareness and knowledge about weeds, their management and costs. Landcare Notes: Pest Plants and The date that has been set for Pest Animals on CD-Rom Weed Awareness Week (or some other This CD-ROM ~ontains all currently similar name) for 1997 is October 12- available Landcar~ Notes on Pest Plants 20. So start planning your weed and Animals from the Keith Turnbull awareness activities now. Research Institute (KTRI), Victoria. It page 10 .4~,,¢Wee, #8 DECEMBER 1996 DIARY NOTES includes 38 pest animal notes and 36 agricultural systems, emerging pest plant notes. The notes on technologies in plant protection, non- Victoria’s State Prohibited Weeds (14 in target effects of biological control all) are produced as an awareness tool introductions and pesticides, genetics in with emphasis on weed identificationpest management, and current plant and provide no information on control. protection research. All the f’des contain a black and white Registration cost is $195 and graphic of the weed. Regionally accommodation $60;per night. A copy Prohibited and Controlled Weeds (22 in of the conference ~tetails is available all) have similar notes but also havefrom the Editor of,,’//Goad 74/eed or from detailed information on weed control. Jan Latham, NZPPSoc Secretariat, The CD-ROM can be ordered Centre for Continuing Education, PO from KTRI, PO Box 48, Frankston Vic Box 84, Lincoln University, Canterbury, 3199 for $50 (includes postage). NZ. Phone +64 3 325 2811 extn 8604, Enquiries to Ross Williamson - phone 03 Fax +64 3 325 3840, Email: 9785 0111 or fax 03 9785 2007. lathamj @lincoln.ac.nz Sixteenth Asian Pacific Weed Science Society Conference September 1997, Kuala Lumpur. The conference is expected to deliberate on pertinent issues in weed science such as: optimal inputs for sustainable 10th European Weed agriculture, maximisation of yield and quality of food and fibres; increased Research Society Symposium labour efficiency in weed management; Poznan, Poland, 22-26 June 1997. judicious use of herbicides and Enquiries from Prof K. Adamczewski, environmental conservation. Institute of Plant Protection~ ul All enquiries and Miczurina 20, PL-60-318 Poznan, correspondence to:. Dr Baki Hi. Bakar, Poland. Organising Secretary, The 16th APWSS Conference, 1977, C/- Botany 50th New Zealand Plant Department, University of Malaya, Protection Conference 59100 Kuala Lumpur. Phone 603 ’Plant Protection in a Green Oasis: The 7594351, Fax 603 7594178, Email: Next 50 Years’ - Lincoln University, baki@ botany.um.edu.my Canterbury, New Zealand, 18-21 August 1977, hosted by the NZ Plant Protection 12th Australian Weeds Society. Conference This Conference will highlightAt the 11th Conference in Melbourne critical issues and options for NZ’s recently, the Council of Australian Weed primary industries, natural estate and Science Societies (CAWSS) delegates environment, as they look to provide voted unanimously to accept the bid research that ensures a viable and from the Tasmanian Weed Society Inc. successful future within the globalto host the next Australian Weeds community. It is the continuation ofConference. So mark in your diary that what was known as the NZ Weed and you will be at Wrest Point Convention Pest Control Society Conference and has Centre in Hobart on 12-16 September a prestigious history for the presentation 1999 (a little way off yet!). The theme of quality research information. Someof the conference is ’Weed Management of the relevant themes of the conference into the 21st Century: Looking Back and include measuring sustainability inLooking Forward’.

AGoodWeed #8 DECEMBER 1996 page 11 POSTAGE SURFACE PAID the NEWSLETTER of AUSTRAL~ The Weed Society of New South Wales MAIL PO Box 438 WAHROONGA NSW 2076

Print Post Approved PP247134/00010

~~EAGLE ENVIRONMENTAL SERVICES PTY LIMITED

The Weed Society acknowledges the generous support of DowElanco Aust Ltd, Frenchs Forest, and Eagle Environmental Servicesi Lidcombe, for their sponsorship of,4 ~,~ Wee~. I