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A collection of poems explores the vast mysteries of language and love.
This is a reference book on the classification, distribution, ecology and control of poisonous and aggressively invasive plant species on rangeland. The plants covered include leafy spurge, snakeweeds, thistles and knapweeds, woody species such as juniper, rabbitbrush, oakbrush, mesquite and saltcedar, and other noxious weeds such as dyers woad, cheatgrass and tansy ragwort.
These proceedings contain the full-length papers and abstracts of papers presented at the symposium. Subjects covered include: ecology and modelling in biological control of weeds; benefits, risks and cost analysis of biological weed control; target and biological control agent selection; pre-release specificity and efficacy testing; regulations and public awareness; evolutionary processes; opportunities and constraints for the biological control of weeds in Europe; release activities and post-release evaluations; and management specifics, integration, restoration and implementation.
An early work from the acclaimed poet of Memorial and Falling Awake, appearing for the first time in the United States. A Sleepwalk on the Severn is a reflective, book-length poem in several registers, using dramatic dialogue. Ghostly, meditative, and characterized by Alice Oswald’s signature sensitivity to nature, the poem chronicles a night on the Severn Estuary as the moonrise travels through its five stages: new moon, half moon, full moon, no moon, and moon reborn.
Biological control of weeds has been practiced 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 practiced 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 practicing 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 Australiawill 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. KEY FEATURES * A unique collation of information for Australian weed research and management * Contains all the information about biological control of weeds in Australia in one book * Provides key references for further information * Will become a well cited publication
A field guide to more than 150 species of wildflower and weed pods. Includes photographs that show the flower in bloom, its pod, and a dried arrangement.