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

Cultural tools essential to manage the weed seedbank

Non-herbicide, or cultural, tools are central to an integrated weed management program that results in a low weed farming system. Read More...
Article
News

National herbicide resistance survey data

One-stop location for herbicide resistance data from national weed surveys in Australian broadacre cropping systems. Read More...
Article
Ask an Expert

Tackling herbicide-resistant summer fallow weeds

Being ready to implement the most appropriate tactic at the right time has a long-lasting impact on the summer fallow weed seed bank. Read More...

Articles

View all
Article
News

Cultural tools essential to manage the weed seedbank

Non-herbicide, or cultural, tools are central to an integrated weed management program that results in a low weed farming system. Read More...
Article
News

National herbicide resistance survey data

One-stop location for herbicide resistance data from national weed surveys in Australian broadacre cropping systems. Read More...
Article
Ask an Expert

Tackling herbicide-resistant summer fallow weeds

Being ready to implement the most appropriate tactic at the right time has a long-lasting impact on the summer fallow weed seed bank. Read More...
Article
Ask an Expert

Weed control bolsters profit in a variable climate

Greg Rummery, Outlook Ag delves into how fallow weed management stimulates a farming system transformation in a variable climate. Read More...
Article
News

Mothvine and automated spraying in the spotlight on WeedSmart irrigated agriculture tour

Those who joined the irrigated study tour on WeedSmart Week day 3 were treated to an inside peek at two of Griffith’s most unique set-ups: Go.Farm’s commercial almond orchard and DPIRD NSW’s grape and citrus research farm. Read More...
Article
News

WeedSmart’s health and safety check-up

Alex Thomas urged the 2026 WeedSmart Week crowd to look beyond health and safety compliance and focus on ‘keeping people alive and well’ on farms. Read More...
Article
News

Stop Johnson grass before it is a perennial problem

Johnson grass plants are best controlled when they first establish from seed, before they develop extensive rhizomes. Read More...
Article
News

Control the controllables in mixed farming systems

Andrew McFadyen says that having a rotation plan with built-in flexibility is beneficial in both mixed and continuous cropping operations. Read More...

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