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Biology And Biological Control Of Dalmatian And Yellow Toadflax
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Book Synopsis Biology and Biological Control of Dalmatian and Yellow Toadflax by :
Download or read book Biology and Biological Control of Dalmatian and Yellow Toadflax written by and published by . This book was released on 2005 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology and Biological Control of Dalmatian and Yellow Toadflax by : Sharlene E. Sing
Download or read book Biology and Biological Control of Dalmatian and Yellow Toadflax written by Sharlene E. Sing and published by . This book was released on 2016 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology and Biological Control of Dalmatian and Yellow Toadflax by :
Download or read book Biology and Biological Control of Dalmatian and Yellow Toadflax written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology and Biological Control of Dalmatian and Yellow Toadflax by : Sharlene E. Sing
Download or read book Biology and Biological Control of Dalmatian and Yellow Toadflax written by Sharlene E. Sing and published by . This book was released on 2016 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology and Biological Control of Dalmatian and Yellow Toadflax by :
Download or read book Biology and Biological Control of Dalmatian and Yellow Toadflax written by and published by . This book was released on 2005 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology and biological control of dalmatian and yellow toadflax by : L.M. | Sing Wilson (S.E.)
Download or read book Biology and biological control of dalmatian and yellow toadflax written by L.M. | Sing Wilson (S.E.) and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Control of Yellow and Dalmatian Toadflax by :
Download or read book Biological Control of Yellow and Dalmatian Toadflax written by and published by . This book was released on 2011 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Control Programmes in Canada 2001-2012 by : Peter G Mason
Download or read book Biological Control Programmes in Canada 2001-2012 written by Peter G Mason and published by CABI. This book was released on 2013-10-21 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Canada is a world leader in biological control research. Reporting the status of biocontrol agents released in Canada over the last decade, this book presents case studies by target pest that evaluate the impact of biocontrol and recommend future priorities. In addition to a new chapter on future targets and an appendix listing established agents, this edition contains information of interest to a global audience, and chapters that address effects of invasive species and climate change.
Book Synopsis Field Guide for the Biological Control of Weeds in the Northwest by : Rachel Winston
Download or read book Field Guide for the Biological Control of Weeds in the Northwest written by Rachel Winston and published by Government Printing Office. This book was released on 2017-12-13 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide focuses on the most problematic weeds in eastern North America for which there are at least some biocontrol agents established and/or available. Multiple photos and descriptions of each weed included in this guide emphasize key identification traits and plant ecology. For each weed included in this guide, all biocontrol agents released or currently found in North America are described individually. Photos highlighting key identification features and damage are included. The release history, current status, and recommended use of each biocontrol agent are described in detail. Recommendations and current impact often vary between the US and Canada, therefore, the information is presented separately. Includes international code of best practices for classical biological control of weeds.
Book Synopsis Seasonal Development of the Biological Control Agent of Dalmatian Toadflax, Mecinus Janthiniformis (Curculionidae: Coleoptera), in Utah by : Samantha A. Willden
Download or read book Seasonal Development of the Biological Control Agent of Dalmatian Toadflax, Mecinus Janthiniformis (Curculionidae: Coleoptera), in Utah written by Samantha A. Willden and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Invasive weeds are threatening ecosystem function and productivity all over the world by outcompeting desirable vegetation and reducing species diversity. One option for long-term control of such weeds is biological control using natural insect enemies. Such a program has been developed for management of Dalmatian toadflax (Linaria dalmatica (L.) Miller (Plantaginaceae)) in North America using a stem-mining weevil, Mecinus janthiniformis To¿Łevski and Caldara (Coleoptera: Curculionidae). Although widely effective in northern regions, such as in British Columbia and in the American northwest, this insect has been slow to suppress Dalmatian toadflax in southern most regions of their current range, including areas in Utah and Colorado, and little is known of the limiting factors leading to slow weed suppression in these areas. Using field assessments of insect and plant activity over two growing seasons at several sites, this study aimed to provide degree-day and calendar-date descriptions of insect phenology. In addition, dead, overwintered Dalmatian toadflax stems were dissected to determine overwintering mortality of weevil adults before spring emergence, and living stems were dissected to determine development stages and mortality of weevils during summer development. Degree-day and calendar-date based models independently resulted in consistent trends in weevil phenology between sites and between years in this study, although the degree-day model is likely to be most useful for purposes of predicting weevil life cycle timing. Interestingly, the sexes differed in their phenology in that males consistently emerged from overwintering sites and were found on Dalmatian toadflax stems considerably earlier than females in the spring. Females as well as males tended to peak in abundance on stems in late-May when Dalmatian toadflax stems reached full maturity. Overall mortality of M. janthiniformis during a lifecycle was low for all samples; approximately 83% of adults successfully emerged from overwintered stems in the following spring, and greater than 65% of larvae survived to adulthood before overwintering. This resulted in >50% of weevils surviving larval development, overwintering, and spring emergence as adults. The majority of M. janthiniformis deaths (51%) resulted from parasitism by chalcidoid wasps during summer development to adulthood. These parasitoid wasps, and also M. janthiniformis adults, likely created the peculiar exit holes that were observed in live Dalmatian toadflax stems during the summer. Although M. janthiniformis populations were slow to provide effective control of Dalmatian toadflax at sites in Utah, this study indicates that the phenology and survivorship of M. janthiniformis individuals in Utah are well suited for successful biocontrol. If given enough time to build populations, M. janthiniformis appears to be capable of providing effective Dalmatian toadflax control in southern regions, but other limiting factors, such as precipitation and host plant quality, should be considered in future studies to explain slow weed suppression. Phenology models and estimates of mortality of M. janthiniformis generated by this study at sites in Utah may be helpful in implementing future biocontrol programs of Dalmatian toadflax.
Book Synopsis Beneficial Insects by : David V. Alford
Download or read book Beneficial Insects written by David V. Alford and published by CRC Press. This book was released on 2019-04-23 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insects are key components of life on our planet, and their presence is essential for maintaining balanced terrestrial ecosystems. Without insects humans would struggle to survive, and on a world scale food production would be severely compromised. Many plants and animals depend directly or indirectly on insects for their very survival, and this is particularly so in the case of insectivorous birds and other such creatures. The beneficial role of insects is often overlooked or misunderstood, and in farming circles their very presence on crops is often seen to be unwelcome. In reality, however, many insects are genuinely beneficial, as in the case of parasitic and predacious species. The use of chemical pesticides to control crop pests is becoming more tightly regulated and environmentally undesirable, and low-input farming, in which natural enemies of pests are encouraged to survive or increase, is becoming far more prevalent. Accordingly, Integrated Pest Management (IPM) and Integrated Pest Management (ICM) strategies are increasingly being developed, advocated and adopted. Features: Highlights information on many groups of insects and mites that act as natural enemies or biological control agents of phytophagous insects and mites, including plant pests. Profusely illustrated with high-quality colour photographs. Focuses mainly on insects and mites as natural enemies of plant pests, including parasitic and predacious species that have been accidentally or deliberately introduced in classical biological control programmes. Reviews the role of phytophagous European insects and mites in controlling or managing European plants that have become invasive weeds in other parts of the world, notably North America, Australia and New Zealand.
Book Synopsis An Evaluation of Biological Control of Linaria Dalmatica with Mecinus Janthinus in Oregon by : Alexander Guy Park
Download or read book An Evaluation of Biological Control of Linaria Dalmatica with Mecinus Janthinus in Oregon written by Alexander Guy Park and published by . This book was released on 2014 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dalmatian toadflax (Linaria dalmatica) has become a prolific invasive plant of rangelands in Oregon since its arrival in the early 20th century. In 2001, the Oregon Department of Agriculture initiated a release program promoting the distribution of the stem-boring weevil, Mecinus janthinus as classical biological control agent to reduce densities of Dalmatian toadflax and improve ecological integrity. This retrospective study sought to answer [1] What impact has M. janthinus had on reducing densities of Dalmatian toadflax, [2] Is M. janthinus spreading naturally to new sites, [3] Should ODA still facilitate spread of the agent, [4] If the program is successful, what is the long-term benefit acquired from this biological control program? These questions were answered using historical biological release forms and monitoring data, and a 2013 state-wide survey of Dalmatian toadflax and M. janthinus. The results show that M. janthinus has reduced average Dalmatian toadflax densities from 9.45 ± 1.34/m2 prior to release, to 5.5 ± 1.1/m2 after release. It was also found that the weevil has naturally migrated beyond their original release sites, and that there was no correlation between distance from release site and abundance of the weevil. These results indicate that ODA and its partners no longer need to distribute M. janthinus. Predictive modeling indicates that the current infestation of Dalmatian toadflax has reached 1% of its mean biological potential, while further expansion will be limited by the presence of M. janthinus. Reduction of plant density through biocontrol is of particular benefit to cattle production in Oregon where conventional control strategies of Dalmatian toadflax could reduce the annual value per acre of grazed land could be reduced by 6.5%.
Book Synopsis Encyclopedia of Invasive Species [2 volumes] by : Susan L. Woodward
Download or read book Encyclopedia of Invasive Species [2 volumes] written by Susan L. Woodward and published by Bloomsbury Publishing USA. This book was released on 2011-09-22 with total page 873 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume set provides a one-stop resource on invasive plants, animals, fungi, and microorganisms that are threatening native ecosystems, agriculture, economies, and human health in the United States. Kudzu vine and field bindweed. Eurasian collared-doves, Burmese pythons, and black rats. The northern snakehead and the gypsy moth. All of these are examples of invasive species that have taken over or are threatening certain ecosystems—places where these organisms never naturally occurred. This two-volume work contains 168 entries on plants, animals, fungi, and microorganisms that are invasive in the United States, providing a complete examination of the variety of organisms, pathways, distribution patterns, and impacts of non-native species introduced to this country. Encyclopedia of Invasive Species: From Africanized Honey Bees to Zebra Mussels begins with a background essay that illuminates the complexities of dealing with invasive animals and plants. Each entry provides information on the origins and invasion history of the species in question as well as a general description of the biology and ecology of each organism. Impacts—actual and potential, as well as management strategies—are addressed. Every species is depicted via photographs as well as maps that show its place of origin and invaded regions in the United States. This unique work presents fascinating scientific information as well as valuable insights about how seemingly minor events can drastically alter our environment.
Download or read book Dalmatian and Yellow Toadflax written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seed Versus Microsite Limitation of Dalmation Toadflax (Linaria Genistifolia Ssp. Dalmatica), Extension of Biological Control Agents for Yellow Toadflax (Linaria Vulgaris), and a Conceptual Dalmation Toadflax Life History Model by : Matthew James Donovan Grieshop
Download or read book Seed Versus Microsite Limitation of Dalmation Toadflax (Linaria Genistifolia Ssp. Dalmatica), Extension of Biological Control Agents for Yellow Toadflax (Linaria Vulgaris), and a Conceptual Dalmation Toadflax Life History Model written by Matthew James Donovan Grieshop and published by . This book was released on 1999 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biology and Management of Noxious Rangeland Weeds by : Roger L. Sheley
Download or read book Biology and Management of Noxious Rangeland Weeds written by Roger L. Sheley and published by . This book was released on 1999 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: In addition to the theory and principles of weed management, this book provides information about twenty-nine of the most serious weeds in the West, including weed identification, origin, history and distribution, invasion potentials, biology and ecology, and specific management options. Full-color photographs and distribution maps help illustrate the plants and the invasive threat they pose. An invaluable resource for land managers, resource specialists, and students of natural resource management, Biology and Management of Noxious Rangeland Weeds provides practical, science-based information needed for sustainable weed management and land restoration.
Book Synopsis Theory of Knowledge for the IB Diploma Fourth Edition by : Carolyn P. Henly
Download or read book Theory of Knowledge for the IB Diploma Fourth Edition written by Carolyn P. Henly and published by Hodder Education. This book was released on 2020-04-27 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developed in cooperation with the International Baccalaureate® Confidently navigate the Theory of Knowledge Guide with a set of rich and engaging resources, grounded in conceptual considerations and illustrated with real-world examples. - Guide students by helping them examine the nature of knowledge and their own status as a knower. - Develop diverse and balanced arguments with a variety of activities, case studies and Deeper Thinking features. - Aid understanding with in-depth discussions of the twelve course concepts and detailed definitions of all key terms. - Provide assessment support with guidance relating to the TOK Exhibition and Essay. Free online material available at hoddereducation.com/ib-extras Also available: Theory of Knowledge Student eTextbook 9781510475458 Theory of Knowledge Whiteboard eTextbook 9781510475441 Theory of Knowledge: Teaching for Success 9781510474659 Theory of Knowledge: Skills for Success 9781510474956 Theory of Knowledge: Skills for Success Student eTextbook 9781510475472