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Small Grain and Grass Weed Response to BAS-514 with Adjuvants

Published online by Cambridge University Press:  12 June 2017

Frank A. Manthey ,
John D. Nalewaja  and
Edward F. Szelezniak
Frank A. Manthey
Affiliation:
Crop and Weed Sci. Dep., N.D. State Univ., Fargo
John D. Nalewaja
Affiliation:
Crop and Weed Sci. Dep., N.D. State Univ., Fargo
Edward F. Szelezniak
Affiliation:
Crop and Weed Sci. Dep., N.D. State Univ., Fargo
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Abstract

Experiments were conducted in the greenhouse and the field to determine the influence of various oil adjuvants on small grain and grass weed susceptibility to foliarly applied BAS-514 OO H (BAS-514). Barnyardgrass, green foxtail, and yellow foxtail were more susceptible to BAS-514 at 0.56 kg ai ha-1 applied with than without an oil adjuvant. Shoot fresh weight reductions of barnyardgrass, green foxtail, and yellow foxtail were greater when BAS-514 at 0.56 kg ha-1 was applied with a methylated seed oil than with a petroleum oil adjuvant in the greenhouse. Differences in the effectiveness among oil adjuvants in enhancing BAS-514 phytotoxicity were more evident in greenhouse than in field experiments. Oil adjuvant enhancement of BAS-514 varied with plant species. Oats, hard red spring wheat, and winter wheat tolerated BAS-514 at 1.1 kg ha-1 foliarly applied with or without an oil adjuvant in the greenhouse. BAS-514 at 0.56 kg ha-1 applied with oil adjuvants caused less than 5% injury to wheat in the field.

Keywords

BAS-514 OO H, (3,7-dichloro-8-quinolinecarboxylic acid)barnyardgrass, Echinochloa crus-galli (L.) Beauv. ♯3 ECHCGgreen foxtail, Setaria viridis (L.) Beauv. ♯ SETVIyellow foxtail, Setaria glauca (L.) Beauv. ♯ SETLUoats, Avena sativa L.hard red spring wheat, Triticum aestivum L.winter wheat, Triticum aestivum L.Additivesseed oilAvena sativaTriticum aestivumSETVISETLUECHCG
Type
Research
Information
Weed Technology , Volume 4 , Issue 2 , June 1990 , pp. 366 - 370
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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