Keeping Kikuyu at bay | Syngenta Turf & Landscape

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Keeping Kikuyu at bay

Close up of Kikuyu
Kikuyu in lawn

Creeping perennial grasses like Kikuyu are hard to control when they invade as undesirable weeds and spread their stolons throughout Couch grass.

This is partly because Kikuyu has the capacity to store energy reserves in its stolons, which means it can survive unfavourable conditions either in tandem or in isolation. To successfully curtail its spread throughout the turf, an effective herbicide is needed: one that moves throughout the plant system to provide long-lasting control.

MONUMENT LIQUID: Kikuyu control that lasts

While fast-acting herbicides such as glyphosate, MSMA and Drive tend to give a quick visual result when it comes to Kikuyu control, the long-term results can be quite poor, as complete plant death has not occurred.

In contrast, Syngenta’s turf herbicide MONUMENT LIQUID moves slowly through the plant, allowing the active ingredient to penetrate a high percentage of the stolon and root system. This results in excellent suppression and limited regrowth, delivering effective control of Kikuyu as well as Winter Grass, Ryegrass, sedges and a wide range of broadleaf weeds.

Getting the most out of your herbicide

If used thoughtfully, an industry-standard herbicide like MONUMENT LIQUID offers excellent post-emergent protection for Couch grass turf.

Here are some important factors to consider when applying MONUMENT LIQUID:

  • Consider the seasons. Kikuyu experiences prolific leaf growth and strong xylem sap flow during summer, which means using MONUMENT LIQUID during this time results in poor translocation downwards to the stolons and roots. Instead, use MONUMENT LIQUID in autumn when Kikuyu starts to accumulate reserves in the stolons and roots in preparation for winter dormancy. This allows optimal translocation downwards, resulting in better eradication.

  • Always apply with a quality, non-ionic surfactant. Use AGRAL (600 g ai/L) at 420 mL/100 L spray mix, or other (1000 g ai/L) products at 250 mL/100 L spray mix.

  • Avoid applying to stressed plants. Plants that are under stress from adverse climatic conditions or failed post-emergence herbicide applications may prove difficult to fully control.

  • Ensure mixing water has a pH of at least 6.5. Acidic pH contributes to the rapid hydrolysis of MONUMENT LIQUID’s active ingredient, trifloxysulfuron. Avoid using acidifying agents and buffer pH to neutral if the spray water source is known to have an acidic pH.

  • For optimal results, make sure your foliar spray coverage is adequate. To achieve this, an AIXR or Turbo TurfJet type nozzle is recommended to deliver course droplet spectrum. Apply in a water rate of at least 400 L/ha.

  • Don’t apply when the ground temperature drops. Avoid applying when soil temperatures are below 14°C as this will severely affect control, and avoid mowing 1-2 days before and after application.