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Experimental study of new cotton protection programmes in Chad



Experimental study of new cotton protection programmes in Chad



Coton et Fibres Tropicales 40(1): 29-37



Previous attempts in Bebedjia in Chad to reduce the quantity of insecticide applied for the control of cotton pests, either by reducing the number or frequency of applications or by waiting until a given damage threshold was reached before spraying, gave results inferior to those of the standard treatment programme (5 fortnightly applications of ultra-low-volume sprays at the rate of 3 litres/ha, beginning 45 days after plant emergence).

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