Download or read book A Study in Hyperparasitism with Particular Reference to the Parasites of Apanteles Melanoscelus ratzeburg written by Carl Frederick William Muesebeck and published by . This book was released on 1927 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pp. 32.

Download or read book Gypsy Moth Handbook written by Edward E. Simons and published by . This book was released on 1979 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Bulletin written by and published by . This book was released on 1941 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biology of the Primary Screw Worm Fly Cochliomyia Americana and a Comparison of Its Stages with Those of C Macellaria written by Paul Random Henson and published by . This book was released on 1936 with total page 1274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Timber Growing and Logging Practice in the Southern Appalachian Region written by Earl Hazeltine Frothingham and published by . This book was released on 1931 with total page 1142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agriculture Handbook written by and published by . This book was released on 1949 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set includes revised editions of some issues.

Download or read book Parasites of the Birch Leaf mining Sawfly Phyllotoma Nemorata written by Philip Berry Dowden and published by . This book was released on 1941 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1927 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of the Public Documents of the Congress and of All Departments of the Government of the United States for the Period from to written by United States. Superintendent of Documents and published by . This book was released on with total page 2476 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selenium Occurrence in Certain Soils in the United States with a Discussion of Related Topics written by Alfred Paul Dachnowski-Stokes and published by . This book was released on 1941 with total page 1240 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 Miscellaneous Publication written by and published by . This book was released on 1950 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Available Publications of the United States Department of Agriculture written by United States. Department of Agriculture and published by . This book was released on with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biological Insect Pest Suppression written by H. C. Coppel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject area embraced by the term "biological control" in its classical sense is very broad indeed. The term itself was apparently first used in 1919 by the late Harry S. Smith, and was then used specifically in reference to the suppression of insect populations by the actions of their indigenous or introduced natural enemies. The California school of biological control specialists who followed in Smith's footsteps have traditionally differentiated "natural" biological control (by indigenous natural enemies) and "applied" biological control (by man-introduced natural enemies). Subsequently, the philosophy broadened beyond the original narrow concern with population suppression of insects (and especially pest insects), to embrace directed activities against mites or other arthropod pests, various invertebrate and vertebrate pests, weeds, and organisms producing disease in humans or their domestic animals and plants. The techniques used in these activities also multiplied beyond the original concern with natural enemies. The subjects area discussed in this book is, at the same time, broader and more restricted than that covered in other books on "biological control. " On the one hand, the treatment here is restrictive in that, with rare exception, we have limited ourselves to dealing only with ideas and examples involving the suppression of insect pests through human activity or intervention in the environment.

Download or read book Journal of Agricultural Research written by and published by . This book was released on 1934 with total page 1246 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Index to Publications of the United States Department of Agriculture 1926 1930 written by United States. Department of Agriculture. Division of Publications and published by . This book was released on 1935 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Yearbook of Agriculture written by and published by . This book was released on 1928 with total page 1252 pages. Available in PDF, EPUB and Kindle. Book excerpt: