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Woolly Cupgrass (Eriochloa villosa) Control in Corn (Zea mays) with Chloroacetamide Herbicides

Published online by Cambridge University Press:  12 June 2017

Michael D. K. Owen ,
Robert G. Hartzler  and
James Lux
Michael D. K. Owen
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
Robert G. Hartzler
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
James Lux
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
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Abstract

Woolly cupgrass control with acetochlor, alachlor, and metolachlor in corn was evaluated at Stratford, IA from 1985 through 1990. Averaged over application techniques, acetochlor at 3.4 kg/ha controlled more than 85% of woolly cupgrass five out of six years, whereas alachlor at 4.5 kg/ha and metolachlor at 3.4 kg/ha controlled more than 85% of this weed one and two years out of six, respectively. Herbicide incorporation did not consistently improve woolly cupgrass control. PRE applications were more effective than incorporated treatments in years with greater than 7 mm rainfall occurring within 3 d after application.

Keywords

Acetochlor, 2-chloro-N-(ethoxymethyl)-N-(2-ethyl-6-methylphenyl)acetamidealachlor, 2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamidemetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamidecorn, Zea mays L.woolly cupgrass, Eriochloa villosa (Thumb.) Kunth # ERBVIHerbicide incorporationacetochloralachlormetolachlorERBVI
Type
Research
Information
Weed Technology , Volume 7 , Issue 4 , December 1993 , pp. 925 - 929
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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