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Unrefined Corn Oil Improves the Mycoherbicidal Activity of Colletotrichum truncatum for Hemp Sesbania (Sesbania exaltata) Control

Published online by Cambridge University Press:  12 June 2017

C. Douglas Boyette
C. Douglas Boyette*
Affiliation:
South. Weed Sci. Lab., U.S. Dep. Agric., Stoneville, MS 38776
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Abstract

In greenhouse experiments, unrefined corn oil was tested as an adjuvant with the mycoherbicidal fungus, Colletotrichum truncatum. A1:1 (V/V) fungus/corn oil tank mixture extended by at least 70 h the period of time in which the fungus remains infective between inoculation and the onset of dew. This formulation also reduced the dew period requirements for optimal weed pathogenesis and mortality from 12 h to 2 h, and reduced the required spray volume by 100-fold, from 500 L/ha to 5 L/ha. These results suggest that formulating C. truncatum in unrefined corn oil greatly improves the bioherbicidal potential of this pathogen.

Keywords

Hemp sesbania, Sesbania exaltata (Raf.) Rydb. ex. A. W. Hill # SEBEXColletotrichum truncatum (Schw.) Andrus and MooreBioherbicidal potentialemulsionSEBEXCOLTRU
Type
Research
Information
Weed Technology , Volume 8 , Issue 3 , September 1994 , pp. 526 - 529
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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