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Response of Common Cocklebur (Xanthium strumarium) to Alternaria helianthi

Published online by Cambridge University Press:  12 June 2017

P. Charles Quimby Jr.
P. Charles Quimby Jr.*
Affiliation:
South. Weed Sci. Lab., Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS 38776
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Abstract

A common sunflower isolate of Alternaria helianthi collected near Stoneville, MS, was pathogenic to cultivated sunflower and common cocklebur. Soybean, cotton, rice, grain sorghum, corn, wheat, and 22 other weed and crop species/varieties in nine botanical families showed no response or only minor symptoms. Therefore, further research is warranted to determine the potential of A. helianthi as a biocontrol agent against common cocklebur in geographic areas where sunflower is not a crop.

Keywords

Common sunflower, Helianthus annuus L. #3 HELANsunflower, H. annuus L.common cocklebur, Xanthium strumarium L. # XANSTsoybean, Glycine max (L.)Merr.upland cotton, Gossypium hirsutum L.rice, Oryza sativa L.grain sorghum, Sorghum bicolor (L.)Moench.field corn, Zea mays L.common wheat, Triticum aestivum L.Biological control of weedsfungus host rangeHelianthus annuusHELANXANST
Type
Research
Information
Weed Technology , Volume 3 , Issue 1 , March 1989 , pp. 177 - 181
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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