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Wild Jujube (Ziziphus lotus) Control in Morocco

Published online by Cambridge University Press:  12 June 2017

David L. Regehr  and
Azeddine El Brahli
David L. Regehr
Affiliation:
Dep. Agron., Kansas State Univ., Manhattan, KS 66506
Azeddine El Brahli
Affiliation:
Centre Aridoculture, B.P. 589, Settat, Morocco
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Abstract

Field studies were conducted from 1985 through 1987 to evaluate control of wild jujube, a deciduous, thorny shrub that causes complete wheat and other crop loss by preventing harvest operations. Initial herbicide or sweep tillage treatments were applied in late June or July, as plants approached maximum foliar development, to wild jujube regrowth from plants cut at ground level the previous fall. Nearly 1 yr after treatment, over 97% reduction of wild jujube regrowth was achieved with initial treatments of 7.2 and 10.7 g ae/L of the isopropylamine salt of glyphosate, 2.4 and 3.6 g ae/L of the potassium salt of picloram, and mixtures of glyphosate plus picloram at half those concentrations, followed 2 to 3 mo later with a repeat herbicide treatment or sweep tillage. About 60% reduction in wild jujube regrowth was achieved with two sweep tillage operations 25 cm deep. Mixtures of half rates of glyphosate plus picloram were less costly than full rates of glyphosate alone and had less carryover to wheat than full rates of picloram alone.

Keywords

Glyphosate, N-(phosphonomethyl)glycinepicloram, 4-amino-3,5,6-trichloro-2-pyridinecarboxylic acidwild jujube, Ziziphus lotus (L.) Lam. # ZIPLOwheat, Triticum aestivum L. ‘Nesma.’Brush controlmechanical weed controlglyphosatepicloramtriclopyr2,4-D2,4,5-T
Type
Research
Information
Weed Technology , Volume 9 , Issue 2 , June 1995 , pp. 326 - 330
Copyright
Copyright © 1995 by the Weed Science Society of America 

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References

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