Download or read book Picciola written by Joseph Xavier Boniface and published by . This book was released on 1858 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cassava Mealybug Interactions written by Paul-André Calatayud and published by IRD Editions. This book was released on 2006 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most basic information on plant-mealybug interactions during the last decade has come from research on the cassava Manihot esculenta Crantz (Euphorbiaceae) system with two mealybug species, namely Phenacoccus manihoti Matile-Ferrero and Phenacoccus herreni Cox and Williams (Sternorrhyncha: Pseudococcidae). Both these insects cause severe damage to cassava in Africa and South America, respectively. This book reviews these interactions (plant selection by the insects, nutritional requirements
Download or read book Toward Insect Resistant Maize for the Third World written by International Maize and Wheat Improvement Center and published by CIMMYT. This book was released on 1989 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annual Report written by Pomological and fruit growing society of the province of Quebec and published by . This book was released on 1910 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin written by Entomological Society of Canada (1951- ) and published by . This book was released on 2003 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedic Dictionary of Landscape and Urban Planning written by Klaus-Jürgen Evert and published by Springer Science & Business Media. This book was released on 2010-05-21 with total page 1548 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique, multilingual, encyclopedic dictionary in two volumes covers terms regularly used in landscape and urban planning, as well as environmental protection. The languages are American and British English, Spanish (with many Latin-American equivalents), French, and German. The encyclopedia also provides various interpretations of the terms at the planning, legal or technical level, which make its meaning more precise and its usage clearer.
Download or read book Semences et plants 2e d written by MACIEJEWSKI Jean and published by Lavoisier. This book was released on 2013-10-09 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Produire des semences et des plants certifiés, c’est concourir au progrès agricole que permet l’évolution constante de la génétique et de ses applications. Cinquante pour cent de la productivité des principales productions agricoles lui sont redevables. Cependant, la législation actuelle fait débat : en effet, elle tend à se durcir afin d’apporter des garanties pour l'utilisateur sur la qualité germinative, la pureté spécifique, la pureté variétale, l'état sanitaire, et à encadrer la production des semences commerciales. Cette nouvelle édition de Semences et plants a pour vocation de faire un point sur l’état actuel de la production de semences et de plants certifiés au vu des récentes évolutions de la réglementation. Les bases scientifiques et les données techniques inhérentes à cette production sont largement développées. Documenté et complet, cet ouvrage s’adresse aux étudiants et aux formateurs de l’enseignement agricole, aux agents du développement agricole et aux agriculteurs – qu’ils soient multiplicateurs ou usagers – qui y trouveront les connaissances techniques et économiques qui leur sont indispensables.
Download or read book The Physiology of Insect Reproduction written by Franz Engelmann and published by Elsevier. This book was released on 2013-10-22 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Physiology of Insect Reproduction provides a comprehensive coverage of insect reproductive system. The title details basic phenomena governing reproductive processes in insects, with the whole spectrum of an insect reproductive cycle. The text first covers insect genitalia, and proceeds to discussing sex determination. Next, the selection talks about the development of unfertilized eggs in insects. The text also deals with gonadal development, along with insect mating behavior. Chapter 7 details the factors that affect egg production and fecundity, while Chapter 8 tackles hormonal control of egg maturation. The ninth chapter covers endocrine influence on reproduction in the male insect. The next chapters discuss oviposition, heterogony, and viviparity. The last two chapters deal with functional hermaphroditism and insect societies, respectively. The book will be of great use to students and researchers in the field of entomology.
Download or read book Environment in Key Words written by Isaac Paenson and published by Elsevier. This book was released on 2016-06-28 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental problems ignore international boundaries. Toxic wastes travel by water and air, sometimes displacing the effects of an environmental disaster entirely outside of its country of origin. It is now understood that to overcome the problems that face us international co-operation is required. This important work is designed to assist in that process, by helping to break down the language barriers that stand between countries. The manual, written in parallel English, German, French and Russian texts, provides the basic tools of communication in the specialized fields of environmental sciences between speakers of these languages. Each chapter has been revised in each separate language by specialists in the field to guarantee the authenticity of the information presented. The author is unique in his approach, presenting the key-words in context, as opposed to simple glossary entries, allowing the reader to fully understand the complex relations between the word and the concepts involved. A comprehensive index written in all four languages guides the reader through the text, providing references to the words as they are used in different disciplines.
Download or read book Pwoje Plante Kafe Coffee Based Cropping Systems Project Volumen 3 Baseline study Coffee revitalization project written by and published by IICA Biblioteca Venezuela. This book was released on with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acrida written by and published by . This book was released on 1972 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theory and Practice of Biological Control written by C.B. Huffaker and published by Elsevier. This book was released on 2012-12-02 with total page 811 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Theory and Practice of Biological Control covers conventional biological control achievement in the major crop types and in public health problems. Composed of five sections encompassing 28 chapters, this book discusses the basic information concerning developments in other biologically based alternatives to chemical pesticides. The first two sections discuss the philosophy, theory, scope, history, and the biological and ecological bases of biological control. These sections also deal with the impact of predators and the host relationships of parasitoids and pathogens. The following section presents the methodological aspects of biological control. Discussions on the variability of natural enemies as encountered in biological control work; the fitness of individuals and populations; the ways fitness is being or can be influenced by importation procedures; and the ability of imported natural enemies to adapt to the new environment are included. The fourth section outlines the accomplishments of conventional biological control in various types of crops, forests, and public health areas. Lastly, the various components of integrated pest control other than conventional biological control that forms the essential ways used in the integrated control approach are covered in the last section of the book. This book is an ideal source for plant pathologists and researchers, microbiologists, parasitologists, and public health professionals.
Download or read book The Host Plant in Relation to Insect Behaviour and Reproduction written by T. Jermy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Preference to oviposition and antibiosis mechanism to jassids (Amrasca devastans Dist.) in cotton (Gossypium sp.).- Studies on the induction of food preference in alfalfa ladybird, Subcoccinella 24-punctata L. (Coleoptera: Coccinellidae).- Feeding and nutrition of the pea aphid, Acyrthosiphon pisum (Harris), with special reference to amino acids.- The ability of Locusta migratoria L. to perceive plant surface waxes.- Antifeedant properties of seedling grasses.- A critical review of the methodology and interpretation of experiments designed to assay the phagostimulatory activity of chemicals to.
Download or read book Research for Farmers written by and published by . This book was released on 1963 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sampling Methods in Soybean Entomology written by M. Kogan and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: Insects as a group occupy a middle ground in the biosphere between bacteria and viruses at one extreme, amphibians and mammals at the other. The size and gen eral nature of insects present special problems to the student of entomology. For example, many commercially available instruments are geared to measure in grams, while the forces commonly encountered in studying insects are in the mil ligram range. Therefore, techniques developed in the study of insects or in those fields concerned with the control of insect pests are often unique. Methods for measuring things are common to all sciences. Advances sometimes depend more on how something was done than on what was measured; indeed a given field often progresses from one technique to another as new methods are discovered, developed, and modified. Just as often, some of these techniques fmd their way into the classroom when the problems involved have been suffici ently ironed out to permit students to master the manipulations in a few labo ratory periods. Many specialized techniques are confined to one specific research laboratory. Although methods may be considered commonplace where they are used, in another context even the simplest procedures may save considerable time. It is the purpose of this series (1) to report new developments in methodology, (2) to reveal sources of groups who have dealt with and solved particular entomological problems, and (3) to describe experiments which might be applicable for use in biology laboratory courses.
Download or read book The Insects of Great Britain Systematically Arranged Accurately Engraved and Painted from Nature Les Insectes de la Grande Bretagne Etc Eng Fr Vol 1 written by William LEWIN (F.L.S.) and published by . This book was released on 1795 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
