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 Parasites of the Birch Leaf mining Sawfly Phyllotoma Nemorata written by Philip B. Dowden and published by . This book was released on 1941 with total page 56 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 1956 with total page 1200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trends in Dairying by Major Type of farming Regions written by Winn Frederick Finner and published by . This book was released on 1941 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Braconid and Ichneumonid Parasitoid Wasps written by Donald L. J. Quicke and published by John Wiley & Sons. This book was released on 2015-01-20 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ichneumonoidea is a vast and important superfamily of parasitic wasps, with some 60,000 described species and estimated numbers far higher, especially for small-bodied tropical taxa. The superfamily comprises two cosmopolitan families - Braconidae and Ichneumonidae - that have largely attracted separate groups of researchers, and this, to a considerable extent, has meant that understanding of their adaptive features has often been considered in isolation. This book considers both families, highlighting similarities and differences in their adaptations. The classification of the whole of the Ichneumonoidea, along with most other insect orders, has been plagued by typology whereby undue importance has been attributed to particular characters in defining groups. Typology is a common disease of traditional taxonomy such that, until recently, quite a lot of taxa have been associated with the wrong higher clades. The sheer size of the group, and until the last 30 or so years, lack of accessible identification materials, has been a further impediment to research on all but a handful of ‘lab rat’ species usually cultured initially because of their potential in biological control. New evidence, largely in the form of molecular data, have shown that many morphological, behavioural, physiological and anatomical characters associated with basic life history features, specifically whether wasps are ecto- or endoparasitic, or idiobiont or koinobiont, can be grossly misleading in terms of the phylogeny they suggest. This book shows how, with better supported phylogenetic hypotheses entomologists can understand far more about the ways natural selection is acting upon them. This new book also focuses on this superfamily with which the author has great familiarity and provides a detailed coverage of each subfamily, emphasising anatomy, taxonomy and systematics, biology, as well as pointing out the importance and research potential of each group. Fossil taxa are included and it also has sections on biogeography, global species richness, culturing and rearing and preparing specimens for taxonomic study. The book highlights areas where research might be particularly rewarding and suggests systems/groups that need investigation. The author provides a large compendium of references to original research on each group. This book is an essential workmate for all postgraduates and researchers working on ichneumonoid or other parasitic wasps worldwide. It will stand as a reference book for a good number of years, and while rapid advances in various fields such as genomics and host physiological interactions will lead to new information, as an overall synthesis of the current state it will stay relevant for a long time.

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 2868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report of the Director of Information written by United States. Department of Agriculture. Office of Information and published by . This book was released on with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Letter of the Bureau of Entomology United States Department of Agriculture written by United States. Bureau of Entomology and published by . This book was released on 1929 with total page 388 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 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 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 Miscellaneous Publication written by and published by . This book was released on 1985 with total page 622 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 1939 with total page 2162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experiment Station Record written by U.S. Office of Experiment Stations and published by . This book was released on 1934 with total page 1092 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Insect Pest Survey Bulletin written by and published by . This book was released on 1931 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalogue of Publications Issued by the Government of the United States written by United States. Superintendent of Documents and published by . This book was released on 1941 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1941 with total page 2194 pages. Available in PDF, EPUB and Kindle. Book excerpt: