Download or read book Parasites and Predators of Forest Insects Liberated in the United States Through 1960 written by Philip B. Dowden and published by . This book was released on 1962 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parasites and Predators of Forest Insects Liberated in the United States Through 1960 written by Philip B. Dowden and published by . This book was released on 1962 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parasites and Predators of Forest Insects Liberated in the United States Hirogh 1960 written by Philip B. Dowden and published by . This book was released on 1962 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Parasites and Predators of Forest Insects Liberated in the United States Through 1960 written by Philip B. Dowden and published by . This book was released on 1962 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stored Tobacco Insects written by Brian Joe Lobley Berry and published by . This book was released on 1962 with total page 1008 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of the Bell 205A 1 Turbojet Helicopter and Spray System for Forest Application of Insecticide written by and published by . This book was released on 1974 with total page 258 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 1969 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book USDA Forest Service Research Paper NE written by Northeastern Forest Experiment Station (Radnor, Pa.) and published by . This book was released on 1971 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agriculture Handbook written by Curtis Paul Clausen and published by . This book was released on 1978 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: Set includes revised editions of some issues.

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 Selected parasites and hyperparasites of the gypsy moth with keys to adults and immatures written by Edward E. Simons and published by . This book was released on 1979 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Toward Integrated Control written by and published by . This book was released on 1971 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Basic Principles of Insect Population Suppression and Management written by E. F. Knipling and published by . This book was released on 1979 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Yields of Eastern White Pine in New England Related to Age Site and Stocking written by William B. Leak and published by . This book was released on 1970 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: S2The Universities of Maine, Massachusetts, and New Hampshire, in cooperation with the Northeastern Forest Experiment Station, initiated in 1959-60 a study of the effects of site and stocking on the growth of eastern white pine. The primary purposes of the study were to develop equations for: (1) predicting the volume increment per acre of pure, even-aged, white pine stands from observable characteristics of the stand, soil, and topography; and (2) predicting the increment of individual white pine trees related to characteristics of the tree, stand, and site. By 1965, measurements of stand growth and development for a 3-year period were available from nearly all field plots. A preliminary analysis revealed that one or more additional remeasurements should be taken before a final summary of the periodic growth of trees and stands is made. Nevertheless, useful and accurate relationships were developed between stand yield, or volumes per acre, and stand age, site, and stocking; and this information is presented in this paper. Yield tables based on the plot data from New Hampshire, using stand height in place of age and site index, have been published by Barrett and Allen (1966).S3.

Download or read book List of Available Publications of the United States Department of Agriculture written by United States. Dept. of Agriculture and published by . This book was released on 1965 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Host parasite Catalog of North American Tachinidae Diptera written by Paul Henri Arnaud and published by . This book was released on 1978 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Tachinidae are the most important of the dipterous families with entomophagous habits. Though often little noticed, these flies have an important role in controlling phytophagous Insecta.