|
News and Views
|
Disease: Powdery Mildew
Pathogen: Erysiphe lagerstroemiae
Host: Crape (Crepe) Myrtle
Powdery mildews are among the most common and most easily diagnosed fungal diseases of plants. The diseases are characterized by the white powdery patches that occur on the surfaces of the leaf or stem. The patch is actually the fungus itself. Sometimes the disease can cause distortions of the leaf surfaces. Although powdery mildews all look alike, they are comprised of many species, some of which are quite host-specific. Therefore, when neighboring plants of different species all have powdery mildew, it may be because of favorable environmental conditions rather than the spread of the same fungus from plant to plant.
License to Copy. This notice hereby grants permission to APSnet users to copy the Image of the Week for noncommercial, personal use. All components of APSnet are copyrighted (including the Image of the Week) and may not be reproduced or distributed except by express permission of APS. Copyright is not claimed for material provided by United States government employees as part of their work. APSnet copyright extends to images, text, graphics, photographs, illustrations, audio, video, computer software, and all other elements of the site.
Instructions to Copy. For PC, position your mouse cursor on the week’s image, click the right mouse button, and choose "Save Picture As..." or "Save this Image as..." whichever is the case. For Mac, click the only mouse button and follow the same steps. Users may want to set up a specific directory and file naming scheme for storing images; otherwise, they will be saved using your system defaults. Images may be used in any software application that supports JPEG file format or viewed in an Internet browser as local files.
© Copyright 2001 by The American Phytopathological Society
