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Weed Control in Safflower (Carthamus tinctorius) by Flurtamone

Published online by Cambridge University Press:  12 June 2017

Robert E. Blackshaw ,
Robert J. Morrison ,
H.-Henning Muendel  and
Blair T. Roth
Robert E. Blackshaw
Affiliation:
Agric. Canada Res. Stn., Lethbridge, AB, Canada T1J 4B1
Robert J. Morrison
Affiliation:
Agric. Canada Res. Stn., Lethbridge, AB, Canada T1J 4B1
H.-Henning Muendel
Affiliation:
Agric. Canada Res. Stn., Lethbridge, AB, Canada T1J 4B1
Blair T. Roth
Affiliation:
Alberta Agric., Lethbridge, AB, Canada T1J 4C7
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Abstract

Field studies were conducted to determine suitability of flurtamone alone and in tank mixture with ethalfluralin for selective control of weeds in safflower. Flurtamone at 0.6 to 0.9 kg ha−1 controlled field pennycress, kochia, and Russian thistle. Flurtamone and ethalfluralin were compatible in tank mixture and provided comparable or superior control of wild oat, kochia, and field pennycress than either herbicide alone. Plant height, date of flowering, seed yield, and quality data indicated that safflower tolerated flurtamone alone up to 1.6 kg ha−1 and flurtamone tank mixed with ethalfluralin at rates as high as 1.1 plus 1.1 kg tar1, respectively. Safflower yield response to these herbicides was positive and reflected level of weed control attained with various treatments.

Keywords

Ethalfluralin, N-ethyl-N-(2-methyl-2-propenyl)-2,6-dinitro-4-(trifluoromethyl)benzenamineflurtamone, 5-(methylamino)-2-phenyl-4-[3-(trifluoromethyl)phenyl]-3(2H)-furanonefield pennycress, Thlaspi arvense L. # THLARkochia, Kochia scoparia (L.) Schrad. # KCHSCRussian thistle, Salsola iberica Sennen & Pau # SASKRwild oat, Avena fatua L. # AVEFAsafflower, Carthamus tinctorius L. ‘Saffire’Herbicide efficacyherbicide interactiontank mixtureAVEFAKCHSCSASKRTHLAR
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 40 , Issue 1 , March 1992 , pp. 110 - 114
Copyright
Copyright © 1992 by the Weed Science Society of America 

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