Big 6

The Big 6 are a set of chemical, mechanical and cultural tactics to help growers control crop weeds.

This plan is all about the grower calling the shots, not the weeds. Download the Big 6 flyer.

We’ve created a Big 6 flyer specific to the summer cropping region. Download it here.

Rotate crops and pastures

01

Weeds love predictable rotations. They find it easy to evolve resistance to herbicides when they are used in a predictable manner.

Weeds love predictable rotations. They find it easy to evolve resistance to herbicides when they are used in a predictable manner.

Increase crop competition

02

Help your crops win the war against weeds by increasing their competitiveness against them.

Help your crops win the war against weeds by increasing their competitiveness against them.

Double knock to preserve glyphosate

03

What’s better than an attack on weeds? A second one. Come at them with a different strategy and any survivors left over don’t stand a chance.

What’s better than an attack on weeds? A second one. Come at them with a different strategy and any survivors left over don’t stand a chance.

Mix and rotate herbicides

04

Rotating buys you time, mixing buys you shots. Mix and rotate buys you time and shots.

Rotating buys you time, mixing buys you shots. Mix and rotate buys you time and shots.

Stop weed seed set

05

Annual weeds must set seed if the species is to persist, so stopping weed seed set is a critical strategy to manage herbicide-resistant weeds.

Annual weeds must set seed if the species is to persist, so stopping weed seed set is a critical strategy to manage herbicide-resistant weeds.

Implement harvest weed seed control

06

Capture weed seed survivors at harvest using chaff lining, chaff tramlining, chaff carts, narrow windrow burning or integrated weed seed destructors.

Capture weed seed survivors at harvest using chaff lining, chaff tramlining, chaff carts, narrow windrow burning or integrated weed seed destructors.

Weedsmart Wisdom

While the Big 6 is a great framework for weed control options, we can’t fit everything in. In our WeedSmart Wisdom section, we focus on some of the other key principles for effective weed control, like spray efficacy and resistance testing.

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Article
News

Testing for herbicide susceptibility and resistance

Testing weeds for herbicide susceptibility and resistance can save growers thousands of dollars, making the investment of a few hundred in testing very worthwhile. Read More...
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Ask an Expert

Do coarse nozzles compromise summer spray efficacy

Select nozzles that deliver the largest spray quality to reduce spray drift and implement measures that don't compromise summer weed control. Read More...
Article
News

Velocity resistance flags the value of herbicide resistance testing pre-harvest

High-level resistance to Velocity is confirmed in wild radish. Test survivor weeds this season. Read More...
Article
News

Plan your attack on the weed seed bank

Here we summarise the key components of the WeedSmart Big 6 strategies and the principles that underpin them. Read More...
Article
News

Testing informs herbicide choice

Herbicide resistance resistance testing proved useful even on a property where there had been limited use of herbicides. Read More...
Article
News

Investigate adverse experiences when using herbicides

Good records and proper investigation can hone in on the cause of unexpected results such as crop injury or poor weed control. Read More...

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