Download or read book Coniesta Ignefusalis Hampson the Millet Stem Borer written by Ousmane Youm and published by . This book was released on 1996 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers presented at a seminar.
Download or read book Samaru Journal of Agriculture Research written by and published by . This book was released on 1990 with total page 570 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 Proceedings of the International Conference on Genetic Improvement of Sorghum and Pearl Millet written by and published by . This book was released on 1997 with total page 722 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Regional Pearl Millet Workshop written by Ousmane Youm and published by . This book was released on 1993 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin Organisation Internationale de Lutte Biologique Contre Les Animaux Et Les Plantes Nuisibles Section Regionale Quest Pal arctique written by and published by . This book was released on 1993 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1990 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Middle East Abstracts and Index written by and published by . This book was released on 1995 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Am lioration du sorgho et de sa culture en Afrique de l Ouest et du Centre written by Alain Ratnadass and published by Cirad. This book was released on 1998 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Spatial and Temporal Dynamics of Host Parasitoid Interactions written by Michael Hassell and published by OUP Oxford. This book was released on 2000-06-08 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines our current understanding of the population dynamics of one kind of interaction - that between insect parasitoids and their hosts. Parasitoids are amongst the most abundant of all animals, and make up about 10% or more of metazoan species. Almost no insect species escape their attack. Host-parasitoid interactions were first modelled over fifty years ago, but for many years there was little good empirical information on the important factors that affect host and parasitoid populations. The models were very simple, and their predictions rather divorced from the complexity of what was visible in the field. Now, better data is available on many components of host-parasitoid systems, from field observations and laboratory and field experiments, and this allows a much closer correspondence between models and data. In particular, the past twenty years have seen major advances in our understanding of how host-parasitoid interactions are influenced by spatial processes, by age-structure effects, and by competition from additional host and parasitoid species. The result is a body of theory that makes direct contact with real systems in the field, and provides us with a detailed understanding of what underpins a whole area of population dynamics. In this book, Michael P Hassell pulls the theory and field data together to present an elegant illustration of the way in which ecological studies advance.
Download or read book Bulletin de la Soci t entomologique d gypte written by Jamʻīyat al-Ḥasharāt al-Miṣrīyah and published by . This book was released on 1988 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:
