Effect of Thiamethoxam on Injurious Herbicides in Rice | OMICS International| Abstract
ISSN: 2329-8863

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  • Research Article   
  • Adv Crop Sci Tech 2017, Vol 6(2): 351
  • DOI: 10.4172/2329-8863.1000351

Effect of Thiamethoxam on Injurious Herbicides in Rice

Martin SM1*, Norsworthy JK1, Scott RC2, Hardke J3, Lorenz GM4 and Gbur E5
1Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72704, USA
2Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Lonoke, AR 72086, USA
3Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Stuttgart, AR 72160, USA
4Department of Entomology, University of Arkansas, Lonoke, AR 72086, USA
5Agricultural Statistics Laboratory, University of Arkansas, Fayetteville, AR 72703, USA
*Corresponding Author : Martin SM, Department of Crop, Soil, and Environmental Sciences, University of Arkansas, Fayetteville, AR 72704, USA, Tel: 8708537696, Email: [email protected]

Received Date: Mar 01, 2018 / Accepted Date: Apr 02, 2018 / Published Date: Apr 09, 2018


Increases in the number of herbicide-resistant weeds in rice has led to the need for new herbicides and modes of action to control these troublesome weeds. Previous research has indicated that insecticide seed treatments can safen rice from herbicide drift. In 2014 and 2015, two field experiments were conducted at the Rice Research and Extension Center (RREC) near Stuttgart, Arkansas, and at the University of Arkansas Pine Bluff (UAPB) farm near Lonoke, Arkansas, to determine if insecticide seed treatments could prevent unacceptable levels of herbicide injury from preemergence (PRE)- and postemergence (POST)-applied herbicides that are typically injurious to rice. Both studies were planted with the imidazolinone-resistant, inbred variety CL151. ‘Treated’ plots contained the insecticide seed treatment thiamethoxam while ‘nontreated’ plots contained no insecticide seed treatment. Seven herbicides were evaluated in the PRE experiment: clomazone, pethoxamid, fluridone, S-metolachlor, thiobencarb, clethodim, and quizalofop to determine crop injury, stand counts, groundcover, and rough rice yield with and without an insecticide seed treatment compared to plots with no herbicide treatments. Overall, an insecticide seed treatment provided increased rice stands and less herbicide injury than the ‘nontreated’ seed while increasing yield by 500 kg ha-1. Of the herbicides tested, clomazone-, thiobencarb-, clethodim-, and quizalofop-treated plots had equivalent yields to the no-herbicide plots. The POST experiment evaluated propanil, saflufenacil, carfentrazone, and acifluorfen in various tank-mixtures and application timings. Similar to the PRE experiment, plants from treated seed had less herbicide injury 1 and 5 weeks after treatment (WAT) along with an increased canopy height and groundcover percentage. Plants having treated seed also had increased yields when used with some herbicide programs. Overall, the use of an insecticide seed treatment can give the added benefit of less injury from injurious herbicides as well as increased groundcover.

Keywords: Herbicide tolerance; Insecticide seed treatment; Safener

Citation: Martin SM, Norsworthy JK, Scott RC, Hardke J, Lorenz GM, et al. (2018) Effect of Thiamethoxam on Injurious Herbicides in Rice. Adv Crop Sci Tech 6: 351. Doi: 10.4172/2329-8863.1000351

Copyright: © 2018 Martin SM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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