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Application Timing Determines Giant Foxtail (Setaria faberi) and Barnyardgrass (Echinochloa crus-galli) Control in No-Till Corn (Zea mays)

Published online by Cambridge University Press:  20 January 2017

Ronald F. Krausz ,
Bryan G. Young ,
George Kapusta  and
Joseph L. Matthews
Ronald F. Krausz*
Affiliation:
Department of Plant, Soil, and General Agriculture, 2036 Charles Lane, Southern Illinois University, Carbondale, IL 62901
Bryan G. Young
Affiliation:
Department of Plant, Soil, and General Agriculture, 2036 Charles Lane, Southern Illinois University, Carbondale, IL 62901
George Kapusta
Affiliation:
Department of Plant, Soil, and General Agriculture, 2036 Charles Lane, Southern Illinois University, Carbondale, IL 62901
Joseph L. Matthews
Affiliation:
Department of Plant, Soil, and General Agriculture, 2036 Charles Lane, Southern Illinois University, Carbondale, IL 62901
*
Corresponding author: R. F. Krausz.
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Abstract

Field studies were conducted from 1996 to 1998 to evaluate grass control in no-till corn (Zea mays) with herbicides applied early preplant (EPP), preemergence (PRE), and postemergence (POST) at the Belleville Research Center at Belleville, IL. Grass control was affected by application timing rather than herbicide. The herbicides applied PRE provided more consistent giant foxtail (Setaria faberi) and barnyardgrass (Echinochloa crus-galli) control (90 to 98%) than the same herbicides applied EPP (0 to 92%). There also was no difference in giant foxtail and barnyardgrass control between the emulsifiable concentrate (EC) formulation and microencapsulated (ME) formulation of acetochlor. Rimsulfuron plus thifensulfuron applied POST provided 90 to 97% control of giant foxtail and barnyardgrass. Metolachlor, EC-acetochlor, SAN 582H, and rimsulfuron plus thifensulfuron provided 85 to 92% control of yellow nutsedge (Cyperus esculentus) compared with 63 to 74% control for BAY FOE 5043 plus metribuzin and ME-acetochlor. Corn grain yield was greater with herbicides applied either PRE or POST than applied EPP. Grass control and grain yield were greater with herbicides applied either PRE or POST compared with EPP.

Keywords

giant foxtail, Setaria faberi Herrm. # SETFAyellow nutsedge, Cyperus esculentus L. # CYPEScorn, Zea mays L. ‘Pioneer 3335’Early preplantpreemergencepostemergenceDAP, days after plantingEC, emulsifiable concentrate formulationEPP, early preplantME, microencapsulated formulationPOST, postemergencePRE, preemergence
Type
Research
Information
Weed Technology , Volume 14 , Issue 1 , March 2000 , pp. 161 - 166
Copyright
Copyright © Weed Science Society of America 

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