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Colletotrichum coccodes: A Pathogen of Eastern Black Nightshade (Solanum ptycanthum)

Published online by Cambridge University Press:  12 June 2017

Robert N. Andersen  and
H. Lynn Walker
Robert N. Andersen
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Dep. Agron. and Plant Genetics, Univ. Minnesota, St. Paul, MN 55108
H. Lynn Walker
Affiliation:
U.S. Dep. Agric., Agric. Res. Serv., Dep. Agron. and Plant Genetics, Univ. Minnesota, St. Paul, MN 55108
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Abstract

The fungus Colletotrichum coccodes (Wallr.) Hughes was isolated from diseased plants of eastern black nightshade (Solanum ptycanthum Dun. ♯ SOLPT) growing in the field. In greenhouse experiments, the isolate was highly pathogenic to eastern black nightshade and less so to seven other weedy species within the Solanaceae. No disease symptoms were observed on seedlings of tomato (Lycopersicon esculentum Mill.), potato (Solanum tuberosum L.), or 10 other species inoculated with the isolate. Dew periods of 16 h or longer were required for maximum disease development. This requirement could limit the practical use of this pathogen as a my coherbicide.

Keywords

Biological weed controlmycoherbicideSOLPT
Type
Special Topics
Information
Weed Science , Volume 33 , Issue 6 , November 1985 , pp. 902 - 905
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

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