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Oxyfluorfen for Directed Postemergence Weed Control in Chile Peppers (Capsicum annuum)

Published online by Cambridge University Press:  12 June 2017

Jill Schroeder
Jill Schroeder*
Affiliation:
Dep. Entomol., Plant Pathol. Weed Sci., New Mexico State Univ., Las Cruces, NM 88003
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Abstract

Field experiments were conducted in 1990 and 1991 near Artesia and Las Cruces, NM to evaluate directed POST treatments of oxyfluorfen for the control of broadleaf weeds that emerge after thinning chile peppers. At Artesia, Wright groundcherry and prostrate pigweed reduced red pepper yield by 33% in untreated plots in 1990 and clusterflower reduced yield by 19% in 1991. At Las Cruces, Wright groundcherry, Palmer amaranth and common lambsquarters reduced yield by 61% in 1990 and by 76% in 1991. A sequential treatment of oxyfluorfen at 0.14 kg ai ha-1 2 wk after thinning, when the peppers were 15 cm tall, followed by 0.14 kg ha-1 4 wk after thinning controlled all species except common lambsquarters without injuring the peppers.

Keywords

Oxyfluorfen, 2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl)benzenechile peppers, Capsicum annuum L. ‘NM 6-4’clusterflower, Flaveria trinervia (Sprang.) C. Mohr, # FLATNcommon lambsquarters, Chenopodium album L. # CHEALoakleaf thornapple, Datura quercifolia H.B.K. # DATQEPalmer amaranth, Amaranthus palmeri S. Wats. # AMAPAprostrate pigweed, Amaranthus blitoides S. Wats. # AMABLWright groundcherry, Physalis wrightii Gray # PHYWRAmaranthus blitoidesAmaranthus palmeriChenopodium albumDatura quercifoliaFlaveria trinerviaPhysalis wrightiiAMABLAMAPACHEALDATQEFLATNPHYWR
Type
Research
Information
Weed Technology , Volume 6 , Issue 4 , December 1992 , pp. 1010 - 1014
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

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