Identification Of Variation Within Sex Pheromone Blends Of Various Maruca Vitrata Populations For Refining Pheromone Lures And Traps In Asia
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Identification Of Variation Within Sex Pheromone Blends Of Various Maruca Vitrata Populations For Refining Pheromone Lures And Traps In Asia
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Author : Stefanie Schläger
language : en
Publisher: Cuvillier Verlag
Release Date : 2017-07-12
Identification Of Variation Within Sex Pheromone Blends Of Various Maruca Vitrata Populations For Refining Pheromone Lures And Traps In Asia written by Stefanie Schläger and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-12 with Science categories.
The legume pod borer, Maruca vitrata, causes severe damage on legume crops in the tropics. The larvae are mainly controlled by synthetic insecticides but without satisfying results. Monitoring of the moths using pheromone traps can help to perform target-oriented control measures. The objective of this study was the improvement of pheromone traps for monitoring M. vitrata in tropical Asia, where synthetic pheromone lures failed to attract males so far. In addition, the sexual communication system of different M. vitrata populations was investigated, since variation in pheromone composition is a potential reason for failure of pheromone lures.
Chemical Ecology Of Cabbage White Pieris Sp Band 49
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Author : Maliha Gul Aftab
language : en
Publisher: Cuvillier Verlag
Release Date : 2021-10-06
Chemical Ecology Of Cabbage White Pieris Sp Band 49 written by Maliha Gul Aftab and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-10-06 with Science categories.
Under the widespread concept of integrated pest management, use of semiochemicals have been extensively studied to control agricultural pest insects. In this regard, aphrodisiac pheromones of two most destructive pest species of Pieris have been investigated. Individual pheromone constituents produced in the wings of two Asian populations were compared with two European populations of P. rapae. The total pheromone levels in the European populations were lower than the amounts present in wings of Asian populations. As a result of this study, we can conclude that both the subspecies of P. rapae showed a clear variation in pheromone profile between them. On the other hand, within subspecies, the different populations did not show very large differences. Therefore, the populations with geographical difference could not be considered identical as they showed significant quantitative differences in pheromone profiles. Furthermore, Electroantennographic analysis was also carried out to find out specific pheromone lures, which could be used for both the subspecies to carried out field bioassays in future, to test the mating disruption strategy.
Re Investigation Of The Female Sex Pheromone Of The Legume Podborer Maruca Vitrata Lepidoptera
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Author : Mohammad Nayemul Hassan
language : en
Publisher:
Release Date : 2007
Re Investigation Of The Female Sex Pheromone Of The Legume Podborer Maruca Vitrata Lepidoptera written by Mohammad Nayemul Hassan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
The legume podborer, Maruca vitrata (Lepidoptera: Crambidae) is a serious pest of legumes throughout Asia and Africa. Previous workers identified (E,E)-10,12-hexadecadienal (EE10,12-6:Ald), (E,E)-10,12-hexadecadienol (EE10,12-16:OH) and (E)-10-hexadecenal (E10-16:Ald) as sex pheromone components of female M. vitrata. They developed a lure that attracts male moths in the field in Benin but they failed to attract male moths in the laboratory, or to develop a lure that attracts male moths in Asia or the rest of Africa. Synthetic lures also attracted significant number of female moths. The objectives of this study were to re-examine the sex pheromone of female M. vitrata with the aim of developing synthetic lures that attracted male moths in a wind-tunnel and in the field in both Africa and Asia and determining the reason for attraction of female moths to synthetic pheromone lure. Procedures were developed for mass rearing M. vitrata of African and Indian strains using synthetic diet without loss of vigour and reproductive potential. The female sex pheromone was re-examined using gas chromatography linked to mass spectrometry (GC-MS) and gas chromatography coupled with electroantennography (GC-EAG). In this study two new components, (E)-10-hexadecenol E10-16:OH and (Z,Z,Z,Z,Z)-3,6,9,12,15-tricosapentaene (ZZZZZ3,6,9,12,15-23:H), were identified as a part of the M. vitrata pheromone blend along with (E,E)-10,12-hexadecadienol (EE10,12-16:Ald). Laboratory windtunnel tests showed attraction of male moths to EE10,12-16:Ald and blends with E10-16:OH or ZZZZZ3,6,9,12,15-23:H equal to that of natural female extract for the first time. Field trials were conducted in West Africa in Burkina Faso, Ghana, Nigeria, Benin and at two locations in India. Although variable trapping results were obtained, in Burkina Faso the major component, EE10,12-16:Ald alone, caught significantly more moths than other synthetic blends consisting major and minor components. A similar result was found in India and the trap catch was significantly increased when E10-16:OH was added to the major component in a ratio of 10:90. Synthetic blends also captured female moths in West Africa but not in India. The role of the newly identified pheromone components and possible reasons for the female moth capture are discussed.
Insect Sex Pheromone Research And Beyond
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Author : Yukio Ishikawa
language : en
Publisher: Springer Nature
Release Date : 2020-03-19
Insect Sex Pheromone Research And Beyond written by Yukio Ishikawa and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-03-19 with Science categories.
This book provides a complete overview of cutting-edge research on insect sex pheromones and pheromone communication systems. The coverage ranges from the chemistry, biosynthesis, and reception of sex pheromones to the control of odor-source searching behavior, and from molecules to the application of research findings to robotics. The book both summarizes the progress of studies conducted using Bombyx mori and several groups of moths and reviews sex pheromones of some non-lepidopteran insect groups of agricultural importance. Attention is drawn to recent findings on elaborate neural information processing in the brain in male moths and to the importance of olfactory receptors specifically tuned to sex pheromone molecules. Featuring contributions from leading experts on the topic, this book will be a unique and valuable resource for researchers and students in the fields of entomology, chemical ecology, insect physiology and biochemistry, evolution, biomimetics, and bioengineering. In addition to researchers, general insect lovers will find the book fascinating for its descriptions of the marvelous abilities of insects and the underlying mechanisms involved.
Seaveg 2012 High Value Vegetables In Southeast Asia Production Supply And Demand
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Author : R. Holmer
language : en
Publisher: AVRDC-WorldVegetableCenter
Release Date : 2013-01-01
Seaveg 2012 High Value Vegetables In Southeast Asia Production Supply And Demand written by R. Holmer and has been published by AVRDC-WorldVegetableCenter this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-01-01 with categories.
Global Report
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Author : International Assessment of Agricultural Knowledge, Science, and Technology for Development (Project)
language : en
Publisher: Iaastd
Release Date : 2009
Global Report written by International Assessment of Agricultural Knowledge, Science, and Technology for Development (Project) and has been published by Iaastd this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Business & Economics categories.
"In addition to assessing existing conditions and knowledge, the IAASTD uses a simple set of model projections to look at the future, based on knowledge from past events and existing trends such as population growth, rural/urban food and poverty dynamics, loss of agricultural land, water availability, and climate change effects. This set of volumes comprises the findings of the IAASTD. It consists of a Global Report, a brief Synthesis Report, and 5 subglobal reports. Taken as a whole, the IAASTD reports are an indispensable reference for anyone working in the field of agriculture and rural development, whether at the level of basic research, policy, or practice."--BOOK JACKET.
Biological Control Of Insect Pests Southeast Asian Prospects
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Author : D.F. Waterhouse
language : en
Publisher:
Release Date : 1995
Biological Control Of Insect Pests Southeast Asian Prospects written by D.F. Waterhouse and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Biorational Control Of Arthropod Pests
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Author : Isaac Ishaaya
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-08-28
Biorational Control Of Arthropod Pests written by Isaac Ishaaya 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 2009-08-28 with Science categories.
For nearly 50 years, pest control was mostly based on broad-spectrum conv- tional insecticides such as organochlorines, organophosphates, carbamates and pyrethroids. However, the severe adverse effects of pesticides on the environment, problems of resistance reaching crisis proportions and public protests led to stricter regulations and legislation aimed at reducing their use. Ways to reduce the use of synthetic pesticides in plant protection and to use more alternative and novel me- ods for pest control or biorational control are the challenges of pest control for the twenty-first century. The term biorational (biological + rational) pesticides can be defined as the use of specific and selective chemicals, often with a unique modes of action, that are compatible with natural enemies and the environment, with minimal effect on n- target organisms. Biorational control is based on a diversity of chemical, biological and physical approaches for controlling insect pests which results in minimum risk to man and the environment.
New Horizons In Insect Science Towards Sustainable Pest Management
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Author : Akshay Kumar Chakravarthy
language : en
Publisher: Springer
Release Date : 2015-04-28
New Horizons In Insect Science Towards Sustainable Pest Management written by Akshay Kumar Chakravarthy and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-04-28 with Science categories.
Insect science is fast changing as insects are evolving to a plethora of newer chemical molecules, climate change, management tactics and transformation of the landscapes. Through the International Conference, the editors have attempted to gather together newer aspects of Insect Sciences like Insect Taxonomy, DNA Barcoding, Physiology, Toxicology, Vectors and their Management, Molecular Biology, RNA interference in Pest Management, Semiochemicals and Pest Management using Host Plant Resistance and Biological Control appropriated especially for the developing world. Both basic and applied aspects of insect science have been included to stimulate comprehensive studies on insect science. The book not only deals with insect science but also environmental and ecological aspects in the hope that the book will be of immense use to students, researchers, extension workers, planners, administrators, farmers and other end users. The Chapters on diversified aspects of Insect Science are contributed by leading scientists for the coming 21st century in which entomology is witnessing a dramatic advancement in management of pests through in-depth investigations. The dimensions of Insect Science covered in the book are pest management approaches that can be adopted worldwide with ascent on sustainability.
Molecular Basis Of Olfaction
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Author :
language : en
Publisher: Academic Press
Release Date : 2015-01-23
Molecular Basis Of Olfaction written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-01-23 with Science categories.
The scope of this volume of Progress in Molecular Biology and Translational Science includes the molecular regulation of olfactory processes in vertebrates and insects including detailed discussion of olfactory proteins, signaling cascades and olfactory receptor modeling. In addition, because insect olfaction is an important and emerging field, it is also discussed in the context of key research questions such as disruption of host-finding by insect disease vectors, elucidation of the diverse range of compounds that are detected by insects, and the detection of pheromones by moths. Comprehensive coverage of molecular processes in olfaction of vertebrates and insects Focus on the emerging field of insect olfaction Contributions by leading research groups in their fields, from a range of countries Discusses fundamental knowledge and also key applications being addressed by the research
