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5 Tips for Weed Management

Weed management is the process of controlling or eliminating weeds in agricultural or landscaped areas. This can be done using various methods, including manual labour, chemical herbicides, and physical tools such as a harrow and disc chain.

The goal of weed management is to reduce the harmful effects of weeds on crop yield, aesthetic appeal and overall health of the ecosystem. Effective weed management can improve the growth and productivity of desirable crops and prevent the spread of noxious weeds.

It also involves applying cultural, mechanical, biological, and chemical techniques to prevent weed growth and reproduction. In this post, we’d focus on mechanical ways to control weeds.

Common Weeds in Australia

Here’s the list of common weeds that impact crop production in Australia:

Wild Oats

Wild oats are a type of grass that can grow up to 1.5 metres tall. They can be a significant problem in cereal crops, as they compete with the crops for light, water and nutrients, reducing crop yields.


Blackberries are perennial shrubs that can spread rapidly and choke out other plants. They are Australia’s worst weeds and can be a problem in pastures and horticultural crops, as they can make it difficult for other plants to establish roots.

Paterson’s Curse

Paterson’s Curse, also known as Salvation Jane or Bluebell Creeper, can harm crops. It can resist the growth of native plants for resources, reducing biodiversity and altering ecosystem function. Its deep taproots can make it difficult to control, and it can spread through seed dispersal.

Prickly Pear

Prickly Pear, also known as Opuntia, is an invasive weed that can harm crops in several ways. It can also host pests and diseases, damaging crops and making it difficult for farmers to maintain healthy yields.

Serrated Tussock

Serrated Tussock is an invasive perennial grass that forms dense, mat-like growths, which can stop native crop production by absorbing resources such as light, water and nutrients from the soil. 


Lantana is a type of a perennial shrub that can establish itself in many habitats and can be a problem for grazing animals, crops, and native vegetation.

These are just a few examples of the many types of weeds found in Australia. Some weeds can affect yield and quality, while others can make it difficult for desirable plants to establish roots.

Effective weed management can help reduce weeds’ adverse effects on crop yield. Luckily, Kelly Tillage comes in to save farmers from the negative impact of these weeds.

How Can Harrow and Disc Chain Help Control Weeds?

A harrow and disc chain can help control weeds in several ways:


A harrow can break up the soil surface, making it difficult for weeds to establish roots. A disc chain can also break up the soil and bury weed seeds, preventing them from germinating.


A harrow or disc chain can bury a soil layer, smothering them and preventing them from growing.

Physical Removal

These can physically remove weeds from the soil by slicing through their roots or pulling them out by the roots.

Drying out

These tools can control weeds by exposing them to sunlight, drying them out, and killing them.


A harrow or disc chain can disturb the weeds by cutting off or damaging their leaves or stem, interfering with photosynthesis and reproduction.

Kelly Tillage offers a range of discs that can help control weeds like CL2, CL1 Disc Chain and the Spiked Disc Chain. Kelly’s unique Disc Chain technology can uproot the existing weeds, leaving them on the surface to die. They help the emergence of seasonal weeds before planting, improving the effectiveness of one-time herbicide application.

As a whole, Kelly Disc Chains are valuable in the farmer’s toolbox for integrated weed management.

It’s important to note that only the disc chain and harrow alone may not be enough to eliminate all weeds. It should be used along with other methods, such as chemical herbicides or manual labour.

Additionally, regular maintenance of the tools is essential to ensure they are in good working condition and prevent damage to the desirable plants.

5 Tips for Weed Management

Understand Your Soil

The first step in effectively using a harrow and disc chain for weed management is to understand the composition of your soil. Different soil types will require other methods for effectively controlling weeds. Knowing your soil’s pH level, nutrient content, and texture will help you choose the best tools and techniques for your specific needs.

Timing is Key

Timing is critical when using a harrow and disc chain for weed management. The best time to use these tools is when weeds are small and actively growing. This will ensure that the weeds are effectively controlled before they have a chance to mature and spread.

Choose the Right Tools

There are many types of harrows and disc chains available on the market, each designed for a specific purpose. For example, a disc harrow is excellent for breaking up and aerating soil, while a chain harrow is better suited for controlling weeds. Make sure to choose the right tools for your specific needs.

Use in Conjunction with Other Methods

A harrow and disc chain are great tools for weed management, but they should be used with other methods to achieve the best results. For example, using a herbicide with a harrow and disc chain will help control weeds that may have escaped the tools.

Regular Maintenance

Regular maintenance is critical to keeping your harrow and disc chain in good working condition. Make sure to keep the tools clean and lubricated to ensure they are working at their best. Regularly check for any damage or wear and tear and make repairs as needed. Doing this will help prolong the life of your tools and ensure they are always ready to use when you need them.

Summing Up

In conclusion, using a harrow and disc chain for weed management is a great way to control weeds on your farmland effectively. By understanding your soil, timing your use of the tools correctly, choosing the right tools, using them in conjunction with other methods and maintaining them properly, you can ensure that your harrow and disc chain will work effectively for many years to come.

Why Kelly Tillage System for Weed Control?

Knowing the difficulties of farmers in the fields and retaining soil fertility through mechanical weed control, our farmers at Kelly Tillage have carefully designed technology to overcome the challenges of Australian farmers.

Our tillage systems, like the 2006 Diamond Harrow, and 3009 Diamond Harrow, are best for weed management. Additionally, our Disc Chains like K4 Disc Chain, CL1, CL2, R300 Disc Chain and Spiked Disc Chain work best to suppress weed growth and improve seed production without the risk of sacrificing crop yield.