---
title: "Sempra | Herbicide | Nutgrass Killer"
canonical: https://gardensuperstore.com.au/sempra-herbicide-nutgrass-killer/
summary: "Buy Your Sempra Herbicide, Nutgrass Killer From The Garden Superstore - Fast Shipping. Earn Rewards Points as You Shop. Thousands of Happy Customers. Let's Grow Better!"
type: product
brand: Nufarm
---

# Sempra | Herbicide | Nutgrass Killer

> Buy Your Sempra Herbicide, Nutgrass Killer From The Garden Superstore - Fast Shipping. Earn Rewards Points as You Shop. Thousands of Happy Customers. Let's Grow Better!

Brand: [Nufarm](https://gardensuperstore.com.au/brands/nufarm/)
Categories: [Selective Herbicides](https://gardensuperstore.com.au/chemicals-plant-protection/herbicides/selective-herbicides/)

| Option | SKU | Price (inc GST) |
| --- | --- | --- |
| Sempra | Herbicide | Nutgrass Killer | SEMP0727-100G | $146.91 |
| Sempra | Herbicide | Nutgrass Killer | SEMP0727-500G | $391.00 |

## Description

## Sempra Herbicide

### The Simple Fix for Nutgrass and Mullumbimby Couch

If [Nutgrass](/problem-solver/weeds/nutgrass/) and [Mullumbimby Couch](/problem-solver/weeds/mullumbimby-couch/) keep creeping back into your lawn no matter what you do, it’s time to reach for Sempra Herbicide. This clever formula targets those stubborn weeds right at the roots — no more endless pulling or patchy regrowth. Just healthy, even turf you’ll be proud to show off.

### Why You’ll Love Sempra

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**Stops Nutgrass and Mullumbimby Couch in their tracks** – Say goodbye to repeat outbreaks.

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**Safe on most turf types** – Gentle on lawns when used as directed.

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**Fast, visible results** – Weeds start yellowing in a week and are gone in 4–6 weeks.

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**Effortless to apply** – Works perfectly in both boom and spot spraying setups.

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**No more wasted weekends** – Spend less time fighting weeds and more time enjoying your lawn.

### How to Use

**When to Apply**

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**Nutgrass:** When new leaves reach about 5cm.

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**Mullumbimby Couch:** Once new growth is around 2cm.

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Always treat during active growth and avoid spraying before rain or frost.

**Mixing & Application**

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Use **65–130g/ha** for boom spraying, or **1.3g per 100m²** for spot spraying.

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Always add a [non-ionic surfactant](/fertiliser-tablets-all-purpose-10g/) (adjuvant) for best results.

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Apply evenly and delay mowing for two days after treatment.

**Important Notes**

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Don’t use treated clippings around veggies or fruit trees.

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Keep livestock and poultry away from treated areas.

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Works well when tank mixed with **Dicamba M, Amicide 700**, and similar herbicides.

### Final Word

Sempra Herbicide takes the frustration out of lawn care — giving you clean, healthy turf without the hard work. Once you see how effective it is, you’ll wish you’d used it sooner.

## Specifications

- **Suitable For:**  Lawn
- **Formulation:** Water Dispersible Granule
- **Active Ingredient:** 750 g/kg Halosulfuron-Methyl
- **Poison schedule:** S5
- **Registration status:** Registered (APVMA 56620)

## Documents

- [Label - Nufarm Sempra Nutgrass Control Herbicide - 190326](https://gardensuperstore.com.au/documents/907/)
- [SDS - Nufarm Sempra Herbicide - 230127](https://gardensuperstore.com.au/documents/548/)
- [BROCHURE - Nufarm Sempra Nutgrass Control Herbicide - 190326](https://gardensuperstore.com.au/documents/885/)