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Biological Control of Jimsonweed (Datura stramonium) with Alternaria crassa

Published online by Cambridge University Press:  12 June 2017

C. Douglas Boyette ,
Gregory J. Weidemann ,
D. O. Te Beest  and
P. C. Quimby Jr.
C. Douglas Boyette
Affiliation:
South. Weed Sci. Lab., Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS 38776
Gregory J. Weidemann
Affiliation:
Dep. Plant Pathol., Univ. Arkansas, Fayetteville, AR 72701
D. O. Te Beest
Affiliation:
Dep. Plant Pathol., Univ. Arkansas, Fayetteville, AR 72701
P. C. Quimby Jr.
Affiliation:
South. Weed Sci. Lab, Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS 38776
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Abstract

In field experiments conducted from 1985 to 1987 in Mississippi and Arkansas, jimsonweed was successfully controlled with the fungus Alternaria crassa (Sacc.) Rands. Conidial applications of the fungus provided an average of 96% control in Mississippi, and 87% control in Arkansas. Mycelial formulations were less effective than conidial applications overall, but during periods of favorable environmental conditions, weed control provided by the mycelial formulations was similar to that provided by conidial preparations. These results indicate that Alternaria crassa has potential as a mycoherbicide for controlling jimsonweed.

Keywords

Jimsonweed, Datura stramonium L. # DATSTAlternaria crassa (Sacc.) RandsBioherbicidemycoherbicideDATST
Type
Soil, Air, and Water
Information
Weed Science , Volume 39 , Issue 4 , December 1991 , pp. 678 - 681
Copyright
Copyright © 1992 by the Weed Science Society of America 

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