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Author: J. E. Ireson Publisher: ISBN: 9781920932596 Category : Electronic books Languages : en Pages : 78
Book Description
It has been estimated that weeds cost Australian agriculture about $4 billion annually (Sinden et al 2004). In Tasmania, about 1.8 million ha is used for production agriculture (Australian Bureau of Statistics 2001). In 1996, the cost of weeds to Tasmanian primary producers in terms of lost production and the cost of control was estimated at $33 million annually (Anon 1996). The primary aim of this technical bulletin is to provide a revised assessment of the cost of weeds to Tasmanian pastures and field crops as well as identifying the weeds that are having the most significant impact on Tasmanian agriculture. It also reviews the current status of all weed biological control programs that have been conducted in Tasmania against some of the major weeds and provides a case study of the successful biological control program on ragwort. The document should serve as a useful reference for those involved in weed control both within the state and nationally.
Author: J. E. Ireson Publisher: ISBN: 9781920932596 Category : Electronic books Languages : en Pages : 78
Book Description
It has been estimated that weeds cost Australian agriculture about $4 billion annually (Sinden et al 2004). In Tasmania, about 1.8 million ha is used for production agriculture (Australian Bureau of Statistics 2001). In 1996, the cost of weeds to Tasmanian primary producers in terms of lost production and the cost of control was estimated at $33 million annually (Anon 1996). The primary aim of this technical bulletin is to provide a revised assessment of the cost of weeds to Tasmanian pastures and field crops as well as identifying the weeds that are having the most significant impact on Tasmanian agriculture. It also reviews the current status of all weed biological control programs that have been conducted in Tasmania against some of the major weeds and provides a case study of the successful biological control program on ragwort. The document should serve as a useful reference for those involved in weed control both within the state and nationally.
Author: Department of Primary Industries, Water and Environtment Staff Publisher: ISBN: 9780724663835 Category : Field crops Languages : en Pages : 108
Author: Jim Cullen Publisher: CSIRO PUBLISHING ISBN: 0643104216 Category : Technology & Engineering Languages : en Pages : 641
Book Description
Biological control of weeds has been practised for over 100 years and Australia has been a leader in this weed management technique. The classical example of control of prickly pears in Australia by the cactus moth Cactoblastis cactorum, which was imported from the Americas, helped to set the future for biocontrol of weeds in many countries. Since then there have been many projects using Classical Biological Control to manage numerous weed species, many of which have been successful. Importantly, there have been no serious negative non-target impacts – the technique, when practised as it is in Australia, is safe and environmentally friendly. Economic assessments have shown that biocontrol of weeds in Australia has provided exceedingly high benefit-to-cost ratios. This book reviews biological control of weeds in Australia to 2011, covering over 90 weed species and a multitude of biological control agents and potential agents. Each chapter has been written by practising biological control of weeds researchers and provides details of the weed, the history of its biological control, exploration for agents, potential agents studied and agents released and the outcomes of those releases. Many weeds were successfully controlled, some were not, many projects are still underway, some have just begun, however all are reported in detail in this book. Biological Control of Weeds in Australia will provide invaluable information for biological control researchers in Australia and elsewhere. Agents used in Australia could be of immense value to other countries that suffer from the same weeds as Australia. The studies reported here provide direction to future research and provide examples and knowledge for researchers and students.
Author: Charles Lamp Publisher: ISBN: Category : Botany Languages : en Pages : 384
Book Description
"This field guide begins with some simple explanations of the botanical terms inescapable in describing plants. Its organization does not follow the formal layout of the definitive Floras of the region. Plants are not arranged in their families but are listed in alphabetical order of scientific name. It is to this extent self-indexing. However, an index of common plant names is included so that those who only know a plant by one of these names, can locate it and confirm its description."--BOOK JACKET.
Author: Jim J. Dellow Publisher: ISBN: 9780734715364 Category : Weeds Languages : en Pages : 112
Book Description
"This field guide deals with the most important broadleaf weeds of temperate crops and pastures of Australia ... The field guide details 95 broadleaf plant species, this includes 86 weeks, two crops, one forage crop and six legume pasture species" -- p. 4.
Author: Harry Rose Publisher: NSW Agriculture ISBN: 1760583650 Category : Technology & Engineering Languages : en Pages : 209
Book Description
In coastal NSW, grasses generally form the bulk of the pasture and are visually obvious. However, there are a large number of non-grass species that are also present such as ferns, sedges, rushes, legumes, daisies and orchids. The purpose of this book is to provide an easy reference guide to more common species so they can be recognised and managed appropriately.
Author: J. E. Ireson
Author: J. E. Ireson
Author: B. Hyde-Wyatt
Author: Brian H. Hyde-Wuyatt
Author: Department of Primary Industries, Water and Environtment Staff
Author: Jim Cullen
Author: Charles Lamp
Author: Jim J. Dellow
Author: 
Author: Harry Rose
Author: Jonathan Knox