Download or read book A Study of the Aphid Transmission and Field Spread of Potato Virus Y in Wisconsin written by Allison Bennett Stevenson and published by . This book was released on 1959 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Role of Transient Aphid Species in the Epidemiology of Potato Virus Y in Wisconsin Potatoes written by Sri Hendrastuti Hidayat and published by . This book was released on 1997 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Epidemiology of Potato Virus Y written by Roland Sigvald and published by . This book was released on 1987 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Potato virus Y biodiversity pathogenicity epidemiology and management written by Christophe Lacomme and published by Springer. This book was released on 2017-08-10 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Potato virus Y (PVY) infects a wide host range mainly within the Solanaceae and is distributed worldwide. PVY is transmitted by more than 40 aphid species in a non persistent manner. Isolates of the PVY species are highly variable at biological, serological and molecular levels. Epidemiological studies have highlighted the emergence of distinct potato PVY variants able to induce necroses on potato tubers. Due to the lack of efficient resistance to PVY isolates inducing necrotic symptoms in cultivated varieties and the plant-to-plant transmission of isolates through the daughter tubers, PVY has become the most economically important virus for the potato industry. The review offers an overview of several decades of research on PVY but also focuses on the latest data obtained by expert on PVY worldwide on the biological characteristics of PVY, interactions between aphids-hosts, its evolution and management. Identified knowledge gaps to understand further PVY biology will be discussed.

Download or read book Transmission of Potato Viruses by Aphids written by and published by International Potato Center. This book was released on with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Management of Potato Virus Y PVY in Wisconsin Seed Potato Production written by and published by . This book was released on 2011 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Aphids and Their Relation to the Field Transmission of Potato Virus Diseases in Northeastern Maine written by Geddes W. Simpson and published by . This book was released on 1940 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Epidemiology and Control of Potato Virus Y PVY in the Red River Valley of Minnesota and North Dakota written by Christina Diane DiFonzo and published by . This book was released on 1995 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Studies on the Relationships of Potato Virus Y and Potato Leaf Roll Virus with Their Aphid Vectors in Potato written by Shaonpius Mondal and published by . This book was released on 2014 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Potato virus Y (PVY) and Potato leaf roll virus (PLRV) constrain potato production and are transmitted by many aphid vectors. Green peach aphid (GPA) is the most efficient vector of both viruses. The overall objective of this dissertation was to study the potato-PVY- and PLRV-aphid pathosystems. A recent concern regarding PVY is the emergence of necrotic and recombinant strains (e.g., PVYN̳:̳O̳, PVYN̳T̳N̳, PVYN̳A̳-N̳/̳N̳T̳N̳) and their impacts relative to the ordinary strain (PVYO̳) in the United States. The first study was aimed at clarifying transmission of virus strains by GPA when multiple virus strains are present in the same source tissue. The apparent primacy of PVYO̳ observed in the study suggests that GPA transmission from mixed infection does not contribute to the increasing prevalence of newer necrotic strains. The second study was aimed at understanding how necrotic PVY isolates are transmitted compared to ordinary isolates by various colonizing (GPA and potato aphid, PA) and non-colonizing aphid (bird cherry-oat aphid, BCOA) species. Although GPA transmitted PVY isolates most efficiently, BCOA transmitted PVYN̳T̳N̳ isolates with better efficiency than previously reported. BCOA is one of the most abundant aphids in potato fields in Idaho, suggesting that this species might be a contributing factor to the recent prevalence of necrotic strains. The third study was focused on the characterization of the aphid species complex over time in potato fields adjacent to cereal fields and how their transient flight might contribute to PVY incidence. A diverse fauna of non-colonizing aphid species was captured, including many cereal aphids as well as species from other crops and weeds. PVY incidence in potato increased following peak aphid flight and appeared to be related to aphid abundance. The objectives of the PLRV-aphid pathosystem study were to observe the phenology of aphid vectors and PLRV incidence among Russet Burbank, Russet Norkotah, and Ranger Russet potato varieties over the season. All varieties were found to be at similar risk of PLRV incidence and aphid vector colonization. Findings from these studies contribute to our understanding of the PVY- and PLRV-pathosystems, and their future management for the benefit of potato growers. [Underscored letters are superscript in original text.]

Download or read book Potato Insect Control in Relation to the Transmission of Potato Virus Y written by Freeman Lester McEwen and published by . This book was released on 1953 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Viruses of Potatoes and Seed potato Production written by J. A. de Bokx and published by . This book was released on 1987 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Characterization and identification of potato viruses and viroids; Viruses, viroids, mycoplasmas and diseases with a virus-like; Viruses and potatoes.

Download or read book Role of Hairy Nightshade Solanum Sarrachoides Sendtner in the Transmission of Potato Virus Y PVY Strains by Aphids and Characterization of the PVY Strain Reactions on Solanum Tuberosum L written by Felix Cervantes and published by . This book was released on 2008 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Potato virus Y (PVY) (Potyviridae: Potyvirus), is the most economically important virus affecting potato seed and tuber commercial production in the Pacific Northwest (PNW) of the USA. The complexity of the PVY-potato pathosystem is affected by the presence of several virus strains that differ in their ability to produce tuber necrosis, and the presence of an alternate host that increases the amount of inoculum in potato fields. Solanum sarrachoides (Sendtner), an invasive weed from South America present in PNW potato agro-ecosystems, serves as reservoir of PVY and its most efficient vectors, the green peach aphid, Myzus persicae (Sulzer), and the potato aphid, Macrosiphum euphorbiae (Thomas). The role of S. sarrachoides as vector and virus reservoir in PVY epidemiology was investigated through a series of laboratory and field experiments. A study of symptom development and titer accumulation of PVY in S. sarrachoides revealed the host susceptibility to infection by different strains of PVY. Greenhouse transmission studies revealed that PVY-infected S. sarrachoides increased the transmission rate of PVY necrotic strains by M. persicae and M. euphorbiae. A field study experimentally demonstrated that the presence of PVY-infected S. sarrachoides increased the transmission of PVY in potato plots by M. persicae, M. euphorbiae and Rhopalosiphum padi (L). A comparative study between mechanical and aphid virus inoculation of three potato cultivars with PVY revealed that necrotic strains were more efficiently transmitted by M. persicae than the non-necrotic strain, and upon virus inoculation these strains tended to reach higher virus concentrations. Upon PVY aphid-inoculation in S. sarrachoides, PVYNTN, a necrotic strain, reached higher concentrations than PVYO, a non-necrotic strain, at different sites in the plant.

Download or read book Seasonal Flight Dynamics of Aphid Species in Association with Potato Virus Y Infection in Wisconsin Potato written by Natalie M. Hernandez and published by . This book was released on 2016 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Potato Crop written by Hugo Campos and published by Springer Nature. This book was released on 2019-12-03 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is open access under a CC BY 4.0 license. This book provides a fresh, updated and science-based perspective on the current status and prospects of the diverse array of topics related to the potato, and was written by distinguished scientists with hands-on global experience in research aspects related to potato. The potato is the third most important global food crop in terms of consumption. Being the only vegetatively propagated species among the world’s main five staple crops creates both issues and opportunities for the potato: on the one hand, this constrains the speed of its geographic expansion and its options for international commercialization and distribution when compared with commodity crops such as maize, wheat or rice. On the other, it provides an effective insulation against speculation and unforeseen spikes in commodity prices, since the potato does not represent a good traded on global markets. These two factors highlight the underappreciated and underrated role of the potato as a dependable nutrition security crop, one that can mitigate turmoil in world food supply and demand and political instability in some developing countries. Increasingly, the global role of the potato has expanded from a profitable crop in developing countries to a crop providing income and nutrition security in developing ones. This book will appeal to academics and students of crop sciences, but also policy makers and other stakeholders involved in the potato and its contribution to humankind’s food security.

Download or read book Virus and Virus like Diseases of Potatoes and Production of Seed Potatoes written by Gad Loebenstein and published by Springer Science & Business Media. This book was released on 2013-12-01 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive up-to-date treatise including information on virus-, viroid-, and phytoplasma-induced potato diseases. The chapters of this book were written by internationally well-known experts and include novel techniques of detection, virus isolation, transmission, and epidemiology of the pathogens.

Download or read book Studies on aphid transmission of potato virus Y written by N. Katis and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acta Phytopathologica Et Entomologica Hungarica written by and published by . This book was released on 1988 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt: