Efficiency of fluazifop-p-butyl and Oxyfluorfen herbicides separately and in combinations with selected spray tank additives on weeds in onion field

A. A. Helalia, S. A. Ahmed, M. A. Balah, A. A. Alsherbiny


Two field experiments were carried out at Faculty of Agriculture Farm, Al-Azhar University, Assiut governorate in 2014-2015 and 2015-2016 seasons to evaluate the efficiency of two post-emergence herbicides, i.e. Fusilade forte (fluazifop-p-butyl) and Goal (oxyfluorfen) on onion weed control at 30 and 60 days after treatment. Both herbicides were applied at their recommended and ¾ recommended rates with and without spray tank additives, i.e. sodium lauryl ether sulphate and organosilicone   adjuvants.  The results showed that the tested adjuvants obviously increased the herbicidal efficiency of fusilade forte against grassy weeds and Goal against broad leave weeds. In most cases the maximum efficiency was achieved when both fusilade forte and Goal were applied at their recommended (187.5 and 180 g a.i/fed.) or ¾ recommended (140.625 and 135 g a.i/feddan) rates, + organosilicone adjuvant at 0.1% v/v concentration without significant adverse effects in onion crop.


Onion, weeds, oxyfluorfen, fluazifop-p-butyl, additives.

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