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GENERAL INSTRUCTIONS
Barrage is a soil residual, broad spectrum, general herbicide for control of a wide range of annual and perennial grasses, broadleaf weeds and vines. Best results are achieved if Barrage is applied just before weed growth occurs. For boom application, well established weeds should first be removed by mechanical or other means. For best results soil should be well prepared as free as possible from trash and clods. Apply to moist soil. Results vary with soil type .. and environmental conditions. Effects are slow to appear and may not become apparent until sufficient moisture (12-25mm on moist soils, 25-50mm on dry soils) in the form of rainfall or irrigation occurs after treatment to carry the product into the root zone of the germinating weeds. Best results are obtained if rainfall or irrigation occurs within 4-10 days after application.
With irrigation, thoroughly wet-up entire treated area, however, care should be taken not to over-water and cause run-off. All rates of Barrage are expressed as overall rates. … Use proportionately less, ie, use only half of the overall rate when treating one half of the area. Temporary chlorosis of lower leaves may occur. To minimise this injury use low directed spray application. Tolerance of cane variety should be determined before treating large areas.