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Efficacy of 1,3-Dichloropropene Plus Chloropicrin in Combination with Herbicides on Purple Nutsedge (Cyperus rotundus) Control in Tomato

Published online by Cambridge University Press:  20 January 2017

James P. Gilreath  and
Bielinski M. Santos
James P. Gilreath
Affiliation:
Gulf Coast Research and Education Center, University of Florida, 5007 60th Street East, Bradenton, FL 34203
Bielinski M. Santos*
Affiliation:
Gulf Coast Research and Education Center, University of Florida, 5007 60th Street East, Bradenton, FL 34203
*
Corresponding author's E-mail: bmsantos@ifas.ufl.edu
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Abstract

A study was conducted to compare the effect of 1,3-dichloropropene (1,3-D) + chloropicrin (Pic) in a 83:17 ratio (C-17) used alone or in combination with herbicides on tomato. Treatments evaluated included 1,3-D (325 kg ai/ha) plus Pic (67 kg ai/ha) used either alone or with pebulate (4.5 kg ai/ha), napropamide (4.5 kg ai/ha), metolachlor (1.1 and 2.3 kg ai/ha), lactofen (2.3 kg ai/ha), or flazasulfuron (0.4 kg ai/ha). Pebulate was consistently more effective in controlling purple nutsedge than the other herbicides tested. Purple nutsedge was more effectively controlled with C-17 in combination with pebulate than with the fumigant alone. Shallow incorporation of pebulate failed to improve weed control and tomato fruit yield.

Keywords

Chloropicrin1,3-dichloropropeneflazasulfuronlactofenmetolachlornapropamidepebulatepurple nutsedge, Cyperus rotundus L. # CYPROtomato, Lycopersicon esculentum Mill. ‘Solar Set’Flazasulfuronlactofenmethyl bromidemetolachlornapropamidepebulatesoil fumigantC-17, 1,3-D + Pic (87:13)1,3-D, 1,3-dichloropropeneMBr, methyl bromidePic, chloropicrinWAT, weeks after treatment
Type
Research Article
Information
Weed Technology , Volume 19 , Issue 1 , March 2005 , pp. 137 - 140
Copyright
Copyright © Weed Science Society of America 

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