Download or read book Weather and the Epidemiology of the African Armyworm Spodoptera Exempta written by M. R. Tucker and published by Hyperion Books. This book was released on 1993 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Summarizes work carried out in the African armyworm seasons during 1972-88 in relation to frequency of outbreaks and weather conditions. The use of trajectory analysis in estimating the migration paths of windborne moths during the season is discussed together with the importance of rainstorms in concentrating the moths to cause an outbreak. Of interest to those working in the field of predictive techniques in migration research, and those planning control operations against this serious pest.
Download or read book The African Armyworm Handbook written by D. J. W. Rose and published by . This book was released on 2000-01 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: The African armyworm, Spodoptera exempta (Walker) (Lepidoptera: Noctuidae is a serious migratory pest of cereal crops and grasslands. It can impact upon the livelihoods of farmers in many countries of sub-Saharan Africa, Yemen, some Pacific islands and parts of Australia. Containing as much up-to-date information as possible on the biology, ecology, epidemiology and management of this pest as well as containing an extensive list of useful references, this handbook will be of interest to those working in the agricultural sector, particularly those reponsible for the control of migrant pests.
Download or read book Epidemiology of the African Armyworm Spodoptera Exempta written by Michael Richard Tucker and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distribution Frequency of Attack and Seasonal Incidence of the African Armyworm Spodoptera Exempta Walk Lep Noctuidae written by Margaret J. Haggis and published by . This book was released on 1984 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Laboratory Culture and Development of the African Armyworm written by Sandra C. Smith and published by Nri. This book was released on 1998 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The African armyworm is a serious pest of cereal crops and rangeland in eastern Africa. However, it is notoriously difficult to rear in the laboratory, being highly susceptible to a nuclear polyhedrosis virus (NPV). From techniques developed at NRI, this handy A5 ring-bound manual is designed to help those who need to maintain a healthy culture for research purposes. Includes recipes for artificial diets, notes on recognition of disease and a list of equipment suppliers.
Download or read book The African Army Worm written by E. S. Brown and published by . This book was released on 1962 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Toxicity Tests of Various Insecticides Against the African Armyworm Spodoptera Exempta Walk East Africa 1969 71 written by Maureen N. D. B. Yeates and published by . This book was released on 1973 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report on Operational Programmes written by Natural Resources Institute (Great Britain) and published by . This book was released on 1993 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Ecological Research written by and published by Academic Press. This book was released on 1997-03-04 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains papers highlighting the diverse interests of modern ecologists. Areas covered range from physiological and evolutionary ecology to ecosystem ecology. Papers address the longevity of roots, the importance of wind dispersal to the population ecology of nocturnal insects, the different functions of soil fauna, 15N abundance in an old field ecosystem and forest productivity. This volume will be essential for all ecologists.
Download or read book Pathways Out of Poverty written by D. Harris and published by . This book was released on 2005 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Migrant Pests written by Royal Society (Great Britain). Discussion Meeting and published by Royal Society (GB). This book was released on 1990 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: A review of the problems of monitoring and control still posed by locusts, grasshoppers, moths and blackfly, in the light of progress made since the 1977 Royal Society Discussion Meeting on Strategy and Tactics of Control of Migrant Pests.
Download or read book Radar Entomology written by V. Alistair Drake and published by CABI. This book was released on 2012 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book (10 chapters) covers radar entomology and its application in the study and monitoring of insect flight and migration. Chapter 1 provides a general introduction to both radar and the biological phenomena that entomologists have studied with radars. An outline of alternative and complementary methods for studying insect movement and a brief historical account of developments in the field are included. Chapter 2 introduces the fundamentals of remote sensing and briefly summarizes some entomological applications of it that do not involve radio technology. The technique and theory underlying radar entomology are covered in chapters 3-8, whereas the principal biological findings that have resulted from the use of radar technology are discussed in chapters 9-14. This book is intended primarily for entomologists, although this publication may also be useful to behaviourists, ecologists, biometeorologists, radar ornithologists and radar meteorologists.
Download or read book African Research Documentation written by and published by . This book was released on 1998 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agroclimatology written by Jerry L. Hatfield and published by John Wiley & Sons. This book was released on 2020-01-22 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Can we unlock resilience to climate stress by better understanding linkages between the environment and biological systems? Agroclimatology allows us to explore how different processes determine plant response to climate and how climate drives the distribution of crops and their productivity. Editors Jerry L. Hatfield, Mannava V.K. Sivakumar, and John H. Prueger have taken a comprehensive view of agroclimatology to assist and challenge researchers in this important area of study. Major themes include: principles of energy exchange and climatology, understanding climate change and agriculture, linkages of specific biological systems to climatology, the context of pests and diseases, methods of agroclimatology, and the application of agroclimatic principles to problem-solving in agriculture.
Download or read book Biopesticides in Environment and Food Security Issues and Strategies written by Opender Koul and published by Scientific Publishers. This book was released on 2012-06-01 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drivers behind food security and crop protection issues vis-à-vis the food losses caused by pests include rapid human population increase, climate change, loss of beneficial on-farm biodiversity, reduction in per capita cropped land, water shortages, and pesticide withdrawals. Integrated pest management, therefore, becomes a compulsory strategy in agriculture, which offers a 'toolbox' of complementary crop- and region-specific crop protection solutions to address these rising pressures. IPM aims at more sustainable solutions by using complementary technologies and one of them is the use of biopesticides including genetically modified cropping systems. The aim is to reduce pests below economic thresholds utilizing key 'ecological services', particularly biocontrol systems via semiochemicals, biopesticides, precision pest monitoring tools, and rapid diagnostics. In fact, we are facing twin problems of environment and food security for the expanding population and it is necessary to ensure adequate pesticide-free food. The ecofriendly nature of biopesticide products suggests environment protection and safety for natural enemies and non-target organisms. However, their adoption and use have lagged behind due to certain constraints like variable performance under field situations, lack of quality standards and interest by big industrial houses, and cumbersome regulatory procedures. The present book is an attempt to critically debate over all these issues and suggest a road map for future.
Download or read book Dispersal Ecology written by British Ecological Society. Symposium and published by Cambridge University Press. This book was released on 2002-08 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dispersal has become central to many questions in theoretical and applied ecology in recent years. In this volume a team of leading ecologists aim to provide the advanced student and researcher with a comprehensive review of dispersal and its implications for modern ecology.
Download or read book Insect Evolutionary Ecology written by Royal Entomological Society of London. Symposium and published by CABI. This book was released on 2005 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insects provide excellent model systems for understanding evolutionary ecology. They are abundant, small, and relatively easy to rear, and these traits facilitate both field and laboratory experiments. This book has been developed from the Royal Entomological Society's 22nd international symposium, held in Reading in 2003. Topics include speciation and adaptation; life history, phenotype plasticity and genetics; sexual selection and reproductive biology; insect-plant interactions; insect-natural enemy interactions; and social insects.
