BIG 6

Practical ways to optimise yields

whilst reducing the weed seed bank.

WeedSmart Big 6

The WeedSmart Big 6 are a set of chemical, mechanical and cultural tactics to help growers control crop weeds and fight herbicide resistance. The Big 6 include:

  1. Rotate crops and pastures
  2. Increase crop competition
  3. Mix and rotate herbicides
  4. Optimise spray efficacy
  5. Stop weed seed set
  6. Implement harvest weed seed control
More on the Big 6

Latest Resources

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Article
News

Innovation drives summer fallow efficiency in the Riverina

Griffith, NSW will host the flagship WeedSmart Week 2026, showcasing the innovative weed management systems local growers have established. Read More...
Article
News

WeedSmart Big 6 focus weed: Fleabane

Fleabane ranks #2 for fallow area affected and #3 for yield loss and revenue loss in the Australian grains industry. Read More...
Article
News

Paddock Talk #21 Boosting knockdown efficacy and Impact of strategic tillage

Listen to two news items: Boosting knockdown efficacy + Impact of one-off tillage Read More...

Articles

View all
Article
News

Innovation drives summer fallow efficiency in the Riverina

Griffith, NSW will host the flagship WeedSmart Week 2026, showcasing the innovative weed management systems local growers have established. Read More...
Article
News

WeedSmart Big 6 focus weed: Fleabane

Fleabane ranks #2 for fallow area affected and #3 for yield loss and revenue loss in the Australian grains industry. Read More...
Article
News

Paddock Talk #21 Boosting knockdown efficacy and Impact of strategic tillage

Listen to two news items: Boosting knockdown efficacy + Impact of one-off tillage Read More...
Article
News

Control ‘summer weeds’ like fleabane in winter and spring

Shifting the primary management timing for summer fallow weeds to winter and spring improves the level of control of fleabane and FTR grass. Read More...
Article
Ask an Expert

Using residuals to keep irrigation infrastructure and borders weed-free

A robust residual herbicide program on non-crop areas buys growers time in the peak periods and reduces weed numbers for routine maintenace. Read More...
Article
News

Resistance risk to eliminate herbicides on irrigated farms

While cotton paddocks are generally relatively weed-free, the incidence of glyphosate resistance continues to increase for several key weeds. Read More...
Article
News

Paddock Talk #20 Narrow windrow burning revisited and Boomspray Investment Calculator

Listen to two news items: Narrow windrow burning refresher + Boomspray Investment Calculator Read More...
Article
News

Narrow windrow burning puts weed seeds in their place

Narrow windrow burning was the first harvest weed seed control method. It's still an effective and cheap way to kill weed seeds. Read More...

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