Download or read book Mass rearing of stem borers maize weevil and larger grain borer insect pests of maize written by Tadele Tefera and published by CIMMYT. This book was released on 2010 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods of Screening Maize for resistance to Stem borers and post harvest insect pests written by and published by CIMMYT. This book was released on with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insect pests of maize in storage biology and control Research Guide No 32 written by and published by IITA. This book was released on with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insect Resistant Maize written by and published by CIMMYT. This book was released on 1997 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechanisms and bases of resistance; The genetics of resistance; Biotechnological manipulation of resistance; Advances in techniques, rearing, rating bioassays, mechanism detection; Resistance verification and utilization; Country reports.
Download or read book On Farm Strategies for the Control of the Maize Weevil in Kenya written by Kakai Khakame and published by LAP Lambert Academic Publishing. This book was released on 2012-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maize is an important staple food for most people in the Sub-Saharan Africa. In most rural areas of Kenya, the production of this crop is under subsistence farming and on-farm storage forms part of the traditional practices. During harvest and storage maize is liable to attack by a variety of insect pests. The maize weevil (Sitophilus zeamais Motsch.) and the larger grain borer (Prostephanus truncatus Horn) cause considerable economic losses to smallholder farmers thus jeopardizing food security at the farm level. Satisfactory pest control has been achieved by use of synthetic pesticides but their adverse effects on the environment, development of resistant strains, their high cost and residues in food has motivated research for safer and cheap alternative methods. On- farm pest control strategies by farmers can be improved by informed research where each method is evaluated thoroughly with the aim of identifying its strength to avoid storage grain losses which may compromise food security at the farm level.
Download or read book Techniques for Efficient Mass Rearing and Infestation in Screening for Host Plant Resistance to Corn Earworm Heliothis Zea written by John A. Mihm and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The practice of growing varieties, lines or hybrids resistant to attack by insects, and their subsequenty effectiveness in reducing pest populations and corresponding crop losses, is well documented for several agricultural crops and pest species. The development of many of these resitant cultivars has resulted from or been facilitated by many years of study of the insect pests, the development of techniques to mass rear the insects, artificially infest the crop species, and screen the germplasm of the species (or their wild relatives) for resistance, and the successful application of appropriate breending procedures for improvement of the resistance characteristic over succeeding cycles or generations of population improvement (Guthrie, 1974, 1980). The basic components necessary to identify or developed germaplasm with resitance, or with higher levels of resistance than present cultivars utilized by farmer/producers, include: (1) A colony of the insect species, which exhibits the vigor and vitality of the damaging pest population within the geographical area that is affected. (2) The capability to efficiently mass culture the species, including the rearing facility, trained personnel, natural, meridic, or defined diets, and rearing procedures and containers. (3) Germaplasm resources that area representative of the genetic variation within the crop and/or its closely related species. (4) Methods for uniform artificial infestation. (5) Methods for assessing resultant damage, or lack of damage, to the plants subjected to deliberate infestation (rating scales to determine classes or categories of resistance or susceptibility). (6) Screening to determine whether adequate levels of resistance exist within suitable agronomic types (equivalent or better than currently grown cultivars), and effective selection/breeding scheme established to improve either the resistance levels or agronomic characteristics of the "improved" materials.
Download or read book Insect Resistant Maize for Africa IRMA Project Annual Report 2002 written by and published by CIMMYT. This book was released on with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biological Control of Maize Stem Borer written by Tadele Tefera and published by LAP Lambert Academic Publishing. This book was released on 2010-08 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stem borers are economically the most important insect pests of maize worldwide. Chemical control is often not successful because of the concealed feeding behavior of the insect. Chemical control can result in adverse effects on non-target organisms and the presence of residues in food and water. As an alternative strategy, insect pathogenic fungi Beauveria bassiana and Metarhizium anisopliae have currently shown great potential in an integrated management of stem borers. This book, therefore, provides empirical information on methods of testing, selection and evaluation of B. bassiana and M. anisopliae for controlling the spotted stem borer Chilo partellus in maize. This book addresses the susceptibility of different larval instars; effect of temperature on fungal development and virulence; food consumption of fungus treated larvae; compatibility of fungal isolates with insecticides; effect of exposure methods and diets on larval mortality; and control of stem borer using effective isolates. This book is useful especially to professionals in agriculture, biological and environmental sciences.
Download or read book Insect resistant Maize written by Jürg Bürgi and published by CABI. This book was released on 2009 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many farmers in sub-Saharan Africa suffer heavily from crop losses due to stem borer pests. Insecticides are often unaffordable; therefore, maize plants must be made resistant to pests. The 'Insect Resistant Maize for Africa' (IRMA) project in Kenya was aimed at developing new maize varieties both by conventional methods and by biotechnologically incorporating the endotoxin produced by the soil bacteriumBacillus thuringiensis. The author gives an impartial and chronological account of this exemplary project between 1999 and 2008, supplemented by discussions of agricultural development policy and descriptions of Kenyan smallholders and the project team. He also takes critical and rational positions on the use of modern plant breeding techniques, biotechnology and development policy.
Download or read book Genetic Evaluation for Insect Resistance in Rice written by E. A. Heinrichs and published by Int. Rice Res. Inst.. This book was released on 1985 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Asian Regional Maize Workshop 8 New Technologies for the New Millennium written by and published by CIMMYT. This book was released on with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Insect Pests of Rice written by M. D. Pathak and published by Int. Rice Res. Inst.. This book was released on 1994 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book African Cereal Stem Borers written by Andrew Polaszek and published by Cabi. This book was released on 1998 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: An assemblage of approximately twenty moth species belonging to the families Crambidae, Pyralidae and Noctuidae constitute the most important cereal pests in many parts of Africa. The caterpillars of these moths bore into the stems of maize, sorghum, millet and rice, often killing the plant, and are commonly known as stem or stalk borers. The cereals attacked are grown on small farms to feed the farmers and their families and are of great importance as the staple food for the population in most parts of Africa. Complex control measures, including the use of chemicals, are often inappropriate. This book provides the information necessary for pursuing integrated pest management of African cereal stem borers, in particular strategies using natural enemy components. The book begins by characterizing the economically important species by region and by their biology and host plants. The book then describes in detail the taxonomy and rearing techniques for the moths, their larvae and their natural enemies. It includes illustrated keys of species and lists of distributions and hosts, and it concludes with a summary of current control measures and those being investigated.
Download or read book Insect Pests of Millets written by A. Kalaisekar and published by Academic Press. This book was released on 2016-12-23 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insect Pests of Millets: Systematics, Bionomics, and Management focuses on protecting the cultivated cereals that many worldwide populations depend on for food across the semi-arid tropics of the world. Providing coverage of all the major cultivated millets, including sorghum, pearlmillet, finger millet, barnyard millet, prosomillet, little millet, kodomillet, and foxtail millet, this comprehensive book on insect pests is the first of its kind that explores systematics, bionomics, distribution, damage, host range, biology, monitoring techniques, and management options, all accompanied by useful illustrations and color plates. By exploring the novel aspects of Insect-plant relationships, including host signaling orientation, host specialization, pest – host evolutionary relationship, and biogeography of insects and host plants, the book presents the latest ecologically sound and innovative techniques in insect pest management from a general overview of pest management to new biotechnological interventions. - Includes the most comprehensive and relevant aspects of insect systematics, including synonyms, nomenclatural history, and identification characters to quickly guide readers to desired information - Addresses aspects of insect-plant relationships, including host signaling and orientation, host specialization, pest – host evolutionary relationship, and biogeography of insects and host plant - Presents the latest research findings related to the ecological, behavioral, and physiological aspects of millet pests
Download or read book Insect Pests of Maize written by Alejandro Ortega C. and published by CIMMYT. This book was released on 1987 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook, designed to facilitate the identification of common insects affecting maize, contains descriptions and color photographs of pests of the seed, root, and seedling, pests of the foliage and tassel; pests of the stem, ear, and tassel; and pests of the ear and grain. The handbook also includes key for identifying insect pests, a guide to beneficial insects, and a section on insect control.
Download or read book Edible Insects written by Arnold van Huis and published by Bright Sparks. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edible insects have always been a part of human diets, but in some societies there remains a degree of disdain and disgust for their consumption. Although the majority of consumed insects are gathered in forest habitats, mass-rearing systems are being developed in many countries. Insects offer a significant opportunity to merge traditional knowledge and modern science to improve human food security worldwide. This publication describes the contribution of insects to food security and examines future prospects for raising insects at a commercial scale to improve food and feed production, diversify diets, and support livelihoods in both developing and developed countries. It shows the many traditional and potential new uses of insects for direct human consumption and the opportunities for and constraints to farming them for food and feed. It examines the body of research on issues such as insect nutrition and food safety, the use of insects as animal feed, and the processing and preservation of insects and their products. It highlights the need to develop a regulatory framework to govern the use of insects for food security. And it presents case studies and examples from around the world. Edible insects are a promising alternative to the conventional production of meat, either for direct human consumption or for indirect use as feedstock. To fully realise this potential, much work needs to be done by a wide range of stakeholders. This publication will boost awareness of the many valuable roles that insects play in sustaining nature and human life, and it will stimulate debate on the expansion of the use of insects as food and feed.
Download or read book Area Wide Control of Insect Pests written by M.J.B. Vreysen and published by Springer Science & Business Media. This book was released on 2007-10-30 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insect pests are becoming a problem of ever-more biblical proportions. This new textbook collates a series of selected papers that attempt to address various fundamental components of area-wide insect pest control. Of special interest are the numerous papers on pilot and operational programs that pay special attention to practical problems encountered during program implementation. It’s a compilation of more than 60 papers authored by experts from more than 30 countries.
