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United States Department of Agriculture

Agricultural Research Service

Title: Black Root Rot

Authors
item Abawi, George - CORNELL UNIVERSITY
item Hanson, Linda

Submitted to: Compendium of Bean Diseases, 2nd Edition
Publication Type: Other
Publication Acceptance Date: November 1, 2002
Publication Date: March 30, 2005
Citation: Abawi, G.S., revised by Hanson, L.E. Black Root Rot. pp. 12-13 Compendium of Bean Diseases, 2nd Edition. H.F. Schwartz, J.r. Steadman, R. Hall, and R.L. Foster, eds. St. Paul, MN. 2005

Interpretive Summary: Black Root Rot Prepared by G. S. Abawi, Revised by L.E. Hanson Black root rot is caused by Thielaviopsis basicola (syn. Chalara elegans). The pathogen is widely distributed, can infect more than 130 plant species in 15 families, and causes severe black root rot diseases in ornamentals and crops such as bean, carrot, cotton, pea, peanut, tomato, and tobacco. Black root rot can be severe on beans in the United States, Italy, and Germany, but it does not appear to be of significance in Latin America. Lesions are initially reddish purple in color, then becoming dark charcoal to black.

Technical Abstract: Black Root Rot Prepared by G. S. Abawi, Revised by L.E. Hanson Black root rot is caused by Thielaviopsis basicola (syn. Chalara elegans). The pathogen is widely distributed, can infect more than 130 plant species in 15 families, and causes severe black root rot diseases in ornamentals and crops such as bean, carrot, cotton, pea, peanut, tomato, and tobacco. Black root rot can be severe on beans in the United States, Italy, and Germany, but it does not appear to be of significance in Latin America. Lesions are initially reddish purple in color, then becoming dark charcoal to black.

Last Modified: 10/20/2014
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