2 edition of biology and control of the insect vectors of potato viruses in Oregon found in the catalog.
biology and control of the insect vectors of potato viruses in Oregon
S. E. Crumb
Written in English
|Statement||by Samuel Ebb Crumb, Jr.|
|The Physical Object|
|Pagination||204 leaves, bound :|
|Number of Pages||204|
Parasitoids kill their insect host, and development of the host is halted prior to its reproductive stage. Hence, they are critical elements in integrated pest management programs and biological control, and many aspects of their biology are under study at UCR. This project (Objectives I & II) on host-parasitoid interactions focuses on how the parasitoids exert their lethal action on the host. Exploiting Viral Proteins to Control Vectors of Circulative Viruses. For circulative viruses, the structural proteins of the viral capsid are the determinants of insect vector specificity (reviewed in Grey et al., ).The route of virus dissemination has been well-characterized for members of the family Luteoviridae and the coat protein (CP) and the readthrough extension of the coat protein Cited by:
The results show that a virus can detect insect vectors, likely by using the sensory system of its host, and trigger a response that boosts viral uptake and thus transmission. This is a novel concept in virology. It will be important to discover whether similar mechanisms are used by other viruses, including those that infect animals and by: Insects and the Plant Viruses carrier of stunt disease of rice. We now know that many of our plant virus disease outbreaks are the result of in- sect-carrier activity, and it is suspected that insects are made,involved in the spread of many other plant virus diseases. Insect carriers of plant viruses are Six-spotted leafhopper.
many organisms can act as vectors and spread plant viruses: bacteria-fungi-nematodes-parasitic plants-insects. -control of insect vectors-removal of alternate hosts-sanitation techniques-use of certified virus free seed or stock-growing resistant crop varieties-plant quarantines. Crop vacuuming systems are suitable for insect control in short-statured crops such as strawberry and some vegetables, particularly in situations where pesticide resistance has emerged such as with the Colorado potato beetle (Leptinotarsa decemlineata) (Boiteau et al., ).
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This work focuses on those insect virus families found primarily or exclusively in insects, covering all major families of insect-selective viruses except for the baculoviruses which were described in a previous volume of The Viruses series.
Included are the established families of insect viruses, the newly recognized ascovirus family, and the nudiviruses, which probably represent a separate. Biology of Disease Vectors presents a comprehensive and advanced discussion of disease vectors and what the future may hold for their control.
This edition examines the control of disease vectors through topics such as general biological requirements of vectors, epidemiology, physiology and molecular biology, genetics, principles of control and Book Edition: 2.
Insect Pests of Potato: Biology and Management provides a comprehensive source of up-to-date scientific information on the biology and management of insects attacking potato crops, with an international and expert cast of contributors providing its contents. This book presents a complete review of the scientific literature from the considerable research effort over the last 15 years, providing.
Culicidae Mosquitoes in the genus Anopheles are the principle vectors of malaria, a disease caused by protozoa in the genus Plasmodium. Aedes aegypti is the main vector of the viruses that cause yellow fever and dengue.
Other viruses, the causal agents of various types of encephalitis, are also carried by Aedes spp. mosquitoes. Wuchereria bancrofti and Brugia malayi, parasitic roundworms that. This book will also be useful to researchers in other fields who will appreciate the diversity and utility of these viruses: virologists and students of virology, particularly those interested in virus evolution or structure, entomologists interested in biological control of insects, insect immunity or diseases carried by insect vectors, and Cited by: This review addresses some of the biological complexities presented by aphid-transmitted viruses of potato,Solanum tuberosum L., and their vectors and discusses the application of this knowledge to the management of potato viruses with particular emphasis on seed potato by: The Molecular Biology of Insect Disease Vectors: Molecular Biology, which was initially focused on the simplest of organisms, bacteria and viruses, broke out of its confines after the initial fundamental questions were answered - the structure of DNA, the genetic code, the nature of regulatory genes - and, importantly, as its methods became Format: Hardcover.
While some plant viruses may be transmitted by several different vector species (e.g. aphids and the non-persistent transmitted potyviruses and Cucumber mosaic virus (CMV)), other viruses are highly specific, being transmitted perhaps by a single species of insect vector, as shown by the circulative-propagative transmitted rhabdoviruses.
Early research into the biology of insect transmission Cited by: Control of the insect vector remains the major point of control of virus infection and this is heavily reliant on insecticides. Since current approaches are not sufficient to control virus spread and insecticide resistance is rising [,], there is a current emphasis on insect vector–virus interactions and novel insect control by: from book Advances in Microbial Control of Insect Pests (pp) Molecular Biology of Insect Viruses.
and many vertebrate and plant viruses have arthropods as propagative vectors. UNESCO – EOLSS SAMPLE CHAPTERS TROPICAL BIOLOGY AND CONSERVATION MANAGEMENT - Vol. VII - Insect Viruses Diversity, Biology, and Use as Bioinsecticides - Jorge E.
Ibarra and M. Cristina Del Rincón-Castro ©Encyclopedia of Life Support Systems (EOLSS) viral group. Some viruses are released by inverted pinocytosis, which engulfs the viralFile Size: KB.
Leaf beetles (family Chrysomelidae) spread more than 35 plant viruses including broad bean mottle, turnip yellow mosaic, southern bean mosaic, and rice yellow mottle.
Potato flea beetles (Epitrix cucumeris) spread the pathogen of potato scab (Actinomyces scabies) when the larvae enters a tuber.
Written by internationally renowned insect virologists, chapters cover all of the major groups of insect pathogenic viruses and suggest future directions for research. The book is divided into three parts: 1) DNA viruses 2) RNA viruses and 3) current hot-topics in insect virology.
Virus groups covered include: Ascoviruses, Baculoviruses, Densoviruses, Entomopoxviruses, Hytrosaviruses. For example, there are more than 50 known aphid vectors of the NC-NPer viruses, Potato virus Y (PVY), but only a few of these species actually colonize the solanaceous crop hosts that are.
Abstract. Taxonomically, insect viruses can be classified into 18 different virus families, including 6 families of DNA viruses and 12 families/groups of RNA viruses (Hunter-Fujita Cited by: Mechanical vectors: The only function of these vectors is to transport the infectious agents, which don’t really need vectors to complete their life cycle (that is, the insect isn’t a host of the pathogen).
Some flies carry infectious agents that are the main cause of different intestinal infections, but these pathogens do not need flies to. The transmission of insect-borne plant pathogens, including viruses, bacteria, phytoplasmas, and fungi depends upon the abundance and behavior of their vectors.
These pathogens should therefore be selected to influence their vectors to enhance their transmission, either indirectly, through the infected host plant, or directly, after acquisition of the pathogen by the vector.
Accumulating Cited by: Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod tions and circumscriptions vary; usually, insects comprise a class within the Arthropoda. As used here, the term Insecta is synonymous with s have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound Clade: Pancrustacea.
The following contributions are included: newline˜ Harrison, B.D. Epidemiology of plant virus diseases: a prologue ().
newline˜ Bos, L. Plant virus ecology; the role of man, and the involvement of governments and international organizations (). newline˜ Buddenhagen, I.W. Crop improvement in relation to virus diseases and their epidemiology ().
newline˜ Gibbs, A. The potato industry in Idaho and the US is currently being affected by aphid-transmitted viruses such as Potato virus Y (PVY) (Potyviridae: Potyvirus). PVY reduces yields and is jeopardizing the seed production industry.
Potato colonizing aphids are the most efficient vectors of PVY. However, aphids that do not colonize potatoes may play an important role in the epidemiology of PVY in Idaho. of various viruses within the body of their insect vectors (Peiﬀer, Gildow & Gray ).
Molecular biology has pro-vided a wealth of knowledge on structures and functions of diﬀerent viral genes and proteins, notably on genes involved in direct interactions with the insect vectors (Zie-gler-Graﬀ & Brault ).
However, interesting and man-Cited by: • Control of Virus Diseases by Interfering with Vectors and Transmission • Acknowledgements Online posting date: 15th April Most plant viruses depend on insect vectors for their survival, transmission and spread. They trans-mit plant viruses by two principal modes, circula-tive (circulating through the insect’s haemocoel.tools for viruses and their aphid vectors.
Although many insects can vector viruses, aphids are the most important vectors for potatoes. The green peach aphid, Myzus persicae, is the most common aphid species in potatoes and the most efficient at transmitting potato viruses (Radcliffe and Ragsdale ).