Pythium diseases, Pythium spp.  (Peronosporales: Pythiaceae)

Pythium diseases
Oomycetes > Peronosporales > Pythiaceae
Pythium spp. Pringsh.


Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 United States License.

Host: flue-cured tobacco
Nicotiana tabacum L.
Photographer: Clemson University - USDA Cooperative Extension Slide Series, , United States
Contact: Pat Zungoli, Clemson University
Descriptor: Symptoms
Description: Rhizoctonia spp. injury (left and right) and Pythium spp. injury in center to young seedlings. Damping off is a problem in tobacco plant beds but can be a problem in the field soon after transplanting. Pythium spp. causes a watery, soft rot of the lower stem and root system and is more common during cool, wet weather. Rhizoctonia causes brown, irregular cankers to develop on the lower stems and injury is more common during warm weather. Lesions can enlarge and girdle the stem while plants that are not severely damaged by Rhizoctonia may recover in the field.
Image taken in: United States


Image Citation: (?)  Clemson University - USDA Cooperative Extension Slide Series, , Bugwood.org


Image Use: (?)   You must attribute the work in the manner specified (but not in any way that suggests endorsement).

 


Image Information last updated on Monday, August 18, 2003


footer line
USDA Forest Service The Bugwood Network University of Georgia

Home | Image Usage | Accessibility Policy | Privacy Policy | Disclaimers | Contact Us

Last updated on Tuesday, January 05, 2010 at 11:31 AM
www.forestryimages.org version 2.0, XHTML 1.1, CSS, 508.