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Field Trials of Sclerotinia sclerotiorum to Control Canada Thistle (Cirsium arvense)

Published online by Cambridge University Press:  12 June 2017

Brenda S. Brosten  and
David C. Sands
Brenda S. Brosten
Affiliation:
Dep. Plant Pathol., Montana State Univ., Bozeman, MT 59717
David C. Sands
Affiliation:
Dep. Plant Pathol., Montana State Univ., Bozeman, MT 59717
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Abstract

An isolate of Sclerotinia sclerotiorum (Lib.) de Bary collected from a Canada thistle [Cirsium arvense (L.) Scop. # CIRAR] plant in Montana proved pathogenic on Canada thistle in field trials. In addition to attacking the thistle crown and causing wilting and death of the shoots, S. sclerotiorum also infected the root system. The high percentage of thistle shoot kill (20 to 80%) after treatment, and subsequent reduction in plant thistle density the following year, demonstrated the potential of S. sclerotiorum as a biological control agent for Canada thistle in Montana.

Keywords

Biological controlfungusCIRAR
Type
Weed Biology and Ecology
Information
Weed Science , Volume 34 , Issue 3 , May 1986 , pp. 377 - 380
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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