Download or read book A Classification of the Scale Insect Genus Asterolecanium written by Louise May Russell and published by . This book was released on 1941 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revisionary study of the genus Asterolecanium has evolved from unsuccessful attempts to identify accurately an injurious member of the genus which evidently was introduced into the United States and from difficulty experienced in satisfying numerous requests for correct identifications of other economically important species. Consideration of literature and specimens in these efforts disclosed a degree of confusion regarding many of the especially destructive species which could be clarified only through a critical classificatory review of the kind here presented. In this publication the writer has attempted to provide descriptions and illustrations adequate for the identification of the intended species and a classification of these species based primarily on a critical study of their morphology.

Download or read book A Classification of the Scale Insect Genus Asterolecanium written by Louise May Russell and published by . This book was released on 1941 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revisionary study of the genus Asterolecanium has evolved from unsuccessful attempts to identify accurately an injurious member of the genus which evidently was introduced into the United States and from difficulty experienced in satisfying numerous requests for correct identifications of other economically important species. Consideration of literature and specimens in these efforts disclosed a degree of confusion regarding many of the especially destructive species which could be clarified only through a critical classificatory review of the kind here presented. In this publication the writer has attempted to provide descriptions and illustrations adequate for the identification of the intended species and a classification of these species based primarily on a critical study of their morphology.

Download or read book A Classification of the Scale Insect Genus Asterolecanium written by Louise May Russell and published by . This book was released on 1941 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: This revisionary study of the genus Asterolecanium has evolved from unsuccessful attempts to identify accurately an injurious member of the genus which evidently was introduced into the United States and from difficulty experienced in satisfying numerous requests for correct identifications of other economically important species. Consideration of literature and specimens in these efforts disclosed a degree of confusion regarding many of the especially destructive species which could be clarified only through a critical classificatory review of the kind here presented. In this publication the writer has attempted to provide descriptions and illustrations adequate for the identification of the intended species and a classification of these species based primarily on a critical study of their morphology.

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 Western Forest Insects written by Robert Livingston Furniss and published by . This book was released on 1977 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Miscellaneous Publication written by Ellen Kay Miller and published by . This book was released on 1992 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Insect Mouthparts written by Harald W. Krenn and published by Springer Nature. This book was released on 2019-12-09 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first comprehensive book focusing on the form and function of insect mouthparts. Written by leading experts, it reviews the current knowledge on feeding types and the evolution of mouthparts and presents new research approaches. The richly illustrated articles cover topics ranging from functional morphology, biomechanics of biting and chewing, and the biophysics of fluid-feeding to the morphogenesis and genetics of mouthpart development, ecomorphology in flower-visiting insects as well as the evolution of mouthparts, including fossil records. Intended for entomologists and scientists interested in interdisciplinary approaches, the book provides a solid basis for future scientific work. Chapter 6 of this book is available open access under a CC BY 4.0 license at link.springer.com.

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 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forestry Clubs for Young People written by Marie Foote Heisley and published by . This book was released on 1929 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication has been prepared primarily for the use of leaders of young people's forestry clubs. Its purpose is to suggest forestry activities suitable for young people and ways and means of carrying on those activities. Some are suitable only for clubs formed by boys and girls, living on farms or in smaller towns; others are more suitable for young people living in the larger cities.

Download or read book Insects written by and published by . This book was released on 1947 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Systematic Collections of the Agricultural Research Service written by United States. Agricultural Research Service and published by . This book was released on 1977 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this report is to give the location, size, history, and significance of the 13 major ARS-supported collections.

Download or read book Insect Enemies of Eastern Forests written by Frank Cooper Craighead and published by . This book was released on 1950 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is a companion volume to Miscellaneous Publication 273, Insect Enemies of Western Forests, but Keen. Its purpose is to treat in a practical manner the more important forest insects in that part of the United States lying east of the Great Plains or treeless areas, roughly the 100th meridian. There is necessarily some overlapping of the eastern and western regions, particularly in the more arid parts of Texas and the Southwest and along the watercourses traversing the Great Plains where the eastern hardwoods extend westward.

Download or read book Index to USDA Miscellaneous Publications written by Ellen Kay Miller and published by . This book was released on 1992 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Selected United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1939 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Standardization and Inspection of Fresh Fruits and Vegetables written by William Henry White and published by . This book was released on 1946 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication gives information on collecting, preserving, handling, mounting, and labeling insect specimens, on subsequent care of collections, and on recognition of the general insect groups or orders. It has been prepared in response to numerous requests from farmers, students, servicemen, and other individuals and groups interested in obtaining first-hand knowledge of insects by collecting them.

Download or read book List of Publications of the United States Department of Agriculture from to Inclusive written by United States. Department of Agriculture. Office of Information and published by . This book was released on 1946 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book List of Publications of the United States Department of Agriculture from January 1941 to December 1945 Inclusive written by United States. Department of Agriculture and published by . This book was released on 1946 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: