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United States Department of Agriculture

Agricultural Research Service

Title: Rhizoctonia Root Rot

Authors
item Hagedorn, D. - UNIVERSITY OF WISCONSON
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: Hagedorn, D.J., revised by Hanson, L.E. Rhizoctonia Root Rot. pp. 19-20 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: Rhizoctonia Root Rot Prepared by D. Hagedorn, Revised by L.E. Hanson Rhizoctonia root rot of bean is common throughout the world. It is one of the most economically important root and hypocotyl diseases of beans in large and small plantings. Losses of more than 10% in conventional tillage and 20-30% in minimal or no-till systems have occurred in the United States, and in Brazil up to 60% yield reductions have been reported in conjunction with Fusarium root rot. Rhizoctonia root rot also is an important disease on a large number of other crop plants. The disease is caused by the fungus Thanatephorus cucumeris, anamorph Rhizoctonia solani, particularly AG-2-2 and AG-4.

Technical Abstract: Rhizoctonia Root Rot Prepared by D. Hagedorn, Revised by L.E. Hanson Rhizoctonia root rot of bean is common throughout the world. It is one of the most economically important root and hypocotyl diseases of beans in large and small plantings. Losses of more than 10% in conventional tillage and 20-30% in minimal or no-till systems have occurred in the United States, and in Brazil up to 60% yield reductions have been reported in conjunction with Fusarium root rot. Rhizoctonia root rot also is an important disease on a large number of other crop plants. The disease is caused by the fungus Thanatephorus cucumeris, anamorph Rhizoctonia solani, particularly AG-2-2 and AG-4.

Last Modified: 7/31/2014
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