virus disease

Listing 1 - 10 from 305 for virus disease

Plant Virus Diseases
... Viruses are for the most part beyond the resolution capabilities of a light microscope. Consequently, virus structures have been determined primarily by electron microscopy and X-ray defraction. They vary ... means of controlling plant viruses. In some instances, when the spread of the virus is slow, loss from disease can be reduced by removing diseased plants and replacing them with healthy replants ...
plantpathology.tamu.edu

Miscellaneous Information About Rose Mosaic Virus
... "Notes are given on the viruses and virus-like diseases that are known to affect roses around the world. The most common and widespread virus disease is rose mosaic, associated especially with ... In the April 1994 issue of the "American Rose" George R. Barse writes "Rose Mosaic virus disease is supposedly spread primarily through using infected propagation stock, although pollen is considered an ...
home.neo.rr.com

Sweet corn Disease Descriptions - Maize Dwarf Mosaic Virus
... corn Disease Descriptions - Maize Dwarf Mosaic Virus Corn Stunt Symptoms on Sweet corn Maize Dwarf Mosaic (virus): Maize Dwarf Mosaic virus is the most common virus disease of sweet corn in Texas. Infected plants ... isolation of sweet corn fields from Johnsongrass stands will help reduce the occurrence of this disease. There are a number of hybrids of sweet corn that are resistant. September, 1996
plantpathology.tamu.edu

APSnet Feature - Transgenic Virus Resistant Papaya: New Hope for Controlling Papaya Ringspot Virus in Hawaii
... St. Paul, MN, U.S.A. Transgenic Virus Resistant Papaya: New Hope for Controlling Papaya Ringspot Virus in Hawaii Dennis Gonsalves, Department of Plant ... of aphid species. In fact, PRSV causes the most serious virus disease of papaya worldwide. The PRSV threat in Hawaii PRSV was ... in Puna in October 1995. Slides show the progress of the disease caused by PRSV in rows of nontransgenic papaya (left in ...
www.apsnet.org

APSnet Education Center - Plant Disease Lessons - Barley yellow dwarf
... . DOI: 10.1094/PHI-I-2000-1103-01 Updated, 2005. DISEASE: Barley yellow dwarf PATHOGEN: Barley yellow dwarf virus, Cereal yellow dwarf virus HOSTS: barley, oats, wheat, maize, rice and other grasses Authors ... Leslie L. Domier, USDA-ARS, University of Illinois Barley yellow dwarf (BYD) is a worldwide virus disease of our most important grasses, including wheat, rice and maize. In the mid-1900s, the ...
www.apsnet.org More from this site

Diseases of Roses
... presents a particular author's ideas and experience with their roses and their method of disease control. If you have questions about diseases of roses, you may e-mail the authors ... article, or send e-mail to the E.Rose Committee. Rose Mosaic Virus Disease By Malcolm Manners Rose Mosaic Virus Effects By Malcolm Manners Powdery Mildew By Jill Barnard Blackspot By Danny Craft ...
www.ars.org

New Disease Reports - Volume 13: February 2006 - July 2006
... a bunchy-top disease of papaya in Cuba Y. Arocha, ... virus infecting soybean in India S.K. Raj, M.S. Khan, S.K. Snehi, S. Srivastava & H.B. Singh Sweet potato feathery mottle virus is the casual agent of Sweet Potato Virus Disease (SPVD) in Italy G. Parrella, A. De Stradis & M. Giorgini First report of a ‘Candidatus Phytoplasma asteris’ isolate associated with a little leaf disease ...
www.bspp.org.uk

Department of Plant Pathology Plant Disease Fact Sheets
... virus by the process called meristem tip culturing. Symptoms vary with the virus involved, the species of plant infected, and the environmental conditions. In some cases, such as virus disease of geraniums, certain environmental conditions bring out symptoms while other conditions mask or hide symptoms. Symptoms associated with virus infections: reduced growth ...
www.ppath.cas.psu.edu

Help! What is this? virus, pest, disease? - Orchids Forum - GardenWeb
... fungus, virus, disease, or etc. Please look at the photo. Any information and advise is greatly appriecated. Click Here to View Photo Follow-Up Postings: RE: Help! What is this? virus, pest, disease? clip ... wet and the leaves with that discolouration dropped off. RE: Help! What is this? virus, pest, disease? clip this post email this post what is this? see most clipped and recent clippings ...
forums2.gardenweb.com

Basic Virus Structure
... the bacteria through the baseplate. HIV, the virus that causes the disease AIDS and is the most famous virus in the world right now, has ... rhinoviruses. What you are seeing are the interlocking proteins of the virus capsid. Each color represents a different type of protein. This image was developed at the University of Wisconsin. This and many other virus structures are available: Follow this link ...
web.mit.edu

These listings are filtered
View all for virus disease