Grasshoppers Locusts
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Grasshoppers Locusts And Crickets
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Author : John Bernhard Smith
language : en
Publisher:
Release Date : 1892
Grasshoppers Locusts And Crickets written by John Bernhard Smith and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1892 with Cranberries categories.
Grasshoppers And Locusts Behaviour Ecology Biogeography Population Dynamics
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Author : Boris Petrovich Uvarov
language : en
Publisher: Nri
Release Date : 1966
Grasshoppers And Locusts Behaviour Ecology Biogeography Population Dynamics written by Boris Petrovich Uvarov and has been published by Nri this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Science categories.
Volume 2 only available of this major hardback book, covering behaviour, ecology, biogeography and population dynamics of locusts and grasshoppers worldwide.
New Strategies In Locust Control
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Author : Stephan Krall
language : en
Publisher: Springer Science & Business Media
Release Date : 1997-12-01
New Strategies In Locust Control written by Stephan Krall and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-12-01 with Technology & Engineering categories.
In the late eighties large-scale control operations were carried out to control a major desert locust upsurge in Africa. For the first time since the banning of organochlorine pesticides these operations relied mainly on non-persistent pesticides such as organophosphates and pyrethroids. The amount of pesticides sprayed and the area covered were probably the highest in the history of locust control and raised criticism with respect to efficacy, economic viability and environmental impact. As a consequence, applied research into the problem was intensified, both at the national and the international level, with the goal of finding new and environmentally sound approaches and solutions to locust and grasshopper control. Emphasis was laid on developing new control agents and techniques.
A Guide To Australian Grasshoppers And Locusts
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Author : David C. Rentz
language : en
Publisher:
Release Date : 2003
A Guide To Australian Grasshoppers And Locusts written by David C. Rentz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Nature categories.
Provides an aid to the identification of both adult and nymph stages of Australian grasshoppers, using nothing more than a 10x hand lens. Technical terminolgy is kept to minimum, as easy-to-understand diagrams illustrate the morphological structures necessary for identification.
Grasshoppers And Grassland Health
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Author : Jeffrey A. Lockwood
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Grasshoppers And Grassland Health written by Jeffrey A. Lockwood and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Acridids (grasshoppers and locusts) can range from being rare curiosities to abundant menaces. Some are threatened with extinction and become subjects of intensive conservation efforts, while others are devastating pests and become the objects of massive control programmes. Even within a species, there are times when the animal is so abundant that its crushed masses cause the wheels of trains to skid (the Rocky Mountain grasshopper, Melanoplus spretus Walsh in western North America in the 1860s and I 870s), while at other times the animal is alarmingly scarce (the Rocky Mountain grasshopper went extinct in the early 1900s). Why are there these extremes in one insect family, and even in a single species? The NATO workshop examined this paradox and its implications for Environmental Security, which must address both the elements of land use (agricultural production and pest management) and conservation of biodiversity. The reconciliation of these objectives clearly demands a critical assessment of current knowledge and policies, identification of future research, and close working relationships among scientists. Insects can present two clear faces, as well as the intervening gradation. These extremes require us to respond in two ways: conservation of scarce species and suppression of abundant (harmful) species. But perhaps most important, these opposite poles also provide the opportunity for an exchange of information and insight.
The Locust Plague In The United States
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Author : Charles Valentine Riley
language : en
Publisher: Chicago : Rand, McNally
Release Date : 1877
The Locust Plague In The United States written by Charles Valentine Riley and has been published by Chicago : Rand, McNally this book supported file pdf, txt, epub, kindle and other format this book has been release on 1877 with Locusts categories.
Grasshoppers Locusts
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Author : John Rowley
language : en
Publisher:
Release Date : 1993
Grasshoppers Locusts written by John Rowley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Social Science categories.
Grasshoppers Up Close
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Author : Greg Pyers
language : en
Publisher: Raintree Perspectives
Release Date : 2005
Grasshoppers Up Close written by Greg Pyers and has been published by Raintree Perspectives this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Juvenile Nonfiction categories.
This book contains information about grasshoppers, their habitats, body parts, senses, and life cycles.
Field Guide To Common Western Grasshoppers
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Author : Robert E. Pfadt
language : en
Publisher:
Release Date : 1994
Field Guide To Common Western Grasshoppers written by Robert E. Pfadt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Grasshoppers categories.
A Plague Of Locusts
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Author :
language : en
Publisher:
Release Date : 1990
A Plague Of Locusts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Agricultural pests categories.