Download or read book The California Species of Mealy Bugs written by Gordon Floyd Ferris and published by Stanford University Press. This book was released on 1918 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The California Species of Mealy Bugs written by Gordon Floyd Ferris and published by Palala Press. This book was released on 2016-05-16 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Mealybugs of California written by Howard Lester McKenzie and published by Univ of California Press. This book was released on with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The California Species of Mealy Bugs written by Gordon Floyd Ferris and published by . This book was released on 1918 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The California Species of Mealy Bugs Classic Reprint written by Gordon Floyd Ferris and published by . This book was released on 2015-08-05 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The California Species of Mealy Bugs The systematic literature dealing with certain groups of the Coccidae or scale insects is extremely unsatisfactory, this condition being especially pronounced in the case of those groups commonly called the "soft scales." The present author (4) has stated in an earlier paper that ." . . of the nearly 100 species of mealy bugs thus far described from North America, including some 35 from California, not more than three or four are recognizable at all on the basis of the published descriptions if taken apart from their typical host and their type locality," nor at the time of the present writing does this statement need any extensive modification. A few species have been described since the statement was originally made and to some of these it may not apply, but so far as the species known at that time arc concerned, the additional claim may safely be made that even under the optimum conditions cited, the identification of many of our species can not be accomplished with reasonable certainty. The actuating motive of the present paper has been the hope of remedying this condition as far as may be for those species of mealy bugs occurring in California. However, progress toward this goal has been made possible only by the utilization of certain methods not ordinarily employed, at least by American entomologists, and by the emphasizing of certain morphological features of which some have been entirely overlooked and of which the full significance of none seems at any time to have been realized. The scope of the paper has therefore been extended to include an explanation of these methods and a description of these morphological features. The restriction of the paper to those species occurring in California has not been due to any desire to keep within the boundaries of some artificially defined political unit nor to any belief that the California mealy-bug fauna is at all separable as a group from that of the rest of North America. The limitations imposed have been purely those of convenience. It so happens that most of the species known from west of Colorado and New Mexico have been described from California and that the types of these are for the most part in western collections. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Download or read book California Citrograph written by and published by . This book was released on 1918 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Pest Management for Avocados written by STEVE H. DREISTADT and published by UCANR Publications. This book was released on 2007-12-01 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual for growers and pest control professionals draws on the expertise of UC faculty, UC Cooperative Extension specialists, farm advisors, and pest control advisors to bring you the latest research and advice on pest management for avocados the IPM way. Using this guide you'll learn how to: • Prevent and diagnose causes of damage • Identify pests and key natural enemies • Establish and IPM program for your grove • Use biological control and other non-chemical methods • Manage problems related to irrigation, nutrition, and the growing environment • Determine when direct control actions are warranted Illustrated with 386 color photographs and 64 line drawings and charts that will help you identify and manage over 100 important pests and disorders.
Download or read book Mealybugs in California Vineyards written by Kris E. Godfrey and published by UCANR Publications. This book was released on 2002-06-01 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This booklet contains detailed descriptions to help you identify the mealybugs found in your vineyard. You'll learn how they cause damage and how to take action with suggested biological, cultural, and chemical controls for each species.
Download or read book Monthly Bulletin of the Department of Agriculture State of California written by California. Dept. of Agriculture and published by . This book was released on 1919 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Bulletin of the Department of Agriculture State of California written by California. Department of Agriculture and published by . This book was released on 1918 with total page 1552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Bulletin of the Department of Agriculture State of California written by and published by . This book was released on 1915 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 1st International Symposium on Biological Control of Arthropods written by and published by . This book was released on 2003 with total page 592 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Closteroviridae written by Ricardo Flores and published by Frontiers E-books. This book was released on 2014-06-06 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant viruses grouped within this family have remarkable properties, prominent among which is their genomic size: Citrus tristeza virus (CTV) has the largest (19.3 kb) genome reported for a plant monopartite single-stranded RNA (+) virus. Virions are filamentous and typically flexuous particles, approximately 12 nm in diameter and 650 to 2000 nm in length, with a unique bipolar (“rattlesnake”) morphology: the major coat protein (CP) encapsidates most of the genomic RNA, with a minor CP (CPm) coating a small 5’-terminal fragment (virion tail) and other viral-encoded proteins being also incorporated to this tail. The genome is monopartite (genus Closterovirus, type member Beet yellows virus, and genus Ampelovirus, type member Grapevine leafroll-associated virus 3) or bipartite (genus Crinivirus, type member Lettuce infectious yellows virus, with at least one example of tripartite genome). The genomic RNA (or RNA1 in criniviruses) directs translation of the two 5’-proximal ORFs (via a peculiar ribosomal frameshift mechanism and proteolytic processing) that encode replication-related components, with the 3’-proximal ORFs encoding proteins expressed from 3’-coterminal subgenomic RNAs. A genomic signature of members of the family Closteroviridae is the presence of a five-gene block of proteins involved in virion assembly and movement that, in addition to the CP and CPm, includes a small transmembrane protein, a homologue of the HSP70 class of heat-shock proteins and a diverged CP. Members of this family encode suppressors of RNA silencing differing in number (up to three in CTV), and in mode of action: intracellular, intercellular, or both. In this same context Sweet potato chlorotic stunt virus codes for a singular suppressor: an RNase III that catalyzes cleavage of the small interfering RNAs mediating RNA silencing. Host range is usually narrow and, in order to expand it, some member(s) of the family, illustrated by the case of CTV, have evolved by acquiring multiple non-conserved genes. Virion accumulation is restricted to the phloem, with aphids, mealybugs and whiteflies (depending on the genus) operating as natural vectors. Disease symptoms may be expressed in leaves, fruits and trunk of the woody hosts. Natural Plant viruses grouped within this family have remarkable properties, prominent among which is their genomic size: Citrus tristeza virus (CTV) has the largest (19.3 kb) genome reported for a plant monopartite single-stranded RNA (+) virus. Virions are filamentous and typically flexuous particles, approximately 12 nm in diameter and 650 to 2000 nm in length, with a unique bipolar (“rattlesnake”) morphology: the major coat protein (CP) encapsidates most of the genomic RNA, with a minor CP (CPm) coating a small 5’-terminal fragment (virion tail) and other viral-encoded proteins being also incorporated to this tail. The genome is monopartite (genus Closterovirus, type member Beet yellows virus, and genus Ampelovirus, type member Grapevine leafroll-associated virus 3) or bipartite (genus Crinivirus, type member Lettuce infectious yellows virus, with at least one example of tripartite genome). The genomic RNA (or RNA1 in criniviruses) directs translation of the two 5’-proximal ORFs (via a peculiar ribosomal frameshift mechanism and proteolytic processing) that encode replication-related components, with the 3’-proximal ORFs encoding proteins expressed from 3’-coterminal subgenomic RNAs. A genomic signature of members of the family Closteroviridae is the presence of a five-gene block of proteins involved in virion assembly and movement that, in addition to the CP and CPm, includes a small transmembrane protein, a homologue of the HSP70 class of heat-shock proteins and a diverged CP. Members of this family encode suppressors of RNA silencing differing in number (up to three in CTV), and in mode of action: intracellular, intercellular, or both. In this same context Sweet potato chlorotic stunt virus codes for a singular suppresso.
Download or read book Journal of Economic Entomology written by and published by . This book was released on 1919 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the Hawaiian Entomological Society written by Hawaiian Entomological Society and published by . This book was released on 1923 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Review of Applied Entomology written by and published by . This book was released on 1914 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Original Version of Love s Labour s Lost written by David Starr Jordan and published by . This book was released on 1918 with total page 960 pages. Available in PDF, EPUB and Kindle. Book excerpt:
