Tuesday, July 15th, 2014

The South Australian Groundsprayer Association (SAGA) had as their theme for the 2014 Annual Industry day “Life Beyond Glyphosate”. Glyphosate is a broad-spectrum systemic herbicide used to kill weeds, especially annual broadleaf weeds and grasses known to compete with commercial crops grown around the globe. Those weeds that are growing a resistance to the chemical are being called “superweeds”.


SAGA was formed 15 years ago to represent commercial spray contractors throughout South Australia, promoting and safeguarding the interests of the industry. The Bay Function Centre at Glenelg, was filled to the brim with interested groups from the agriculture, horticulture, and viticulture sectors, listening to key speakers discuss glyphosate, one of the most widely used chemicals in Australia.


First key note speaker, Dr Peter Boutsalis from the University of Adelaide, got the audience going by explaining which weeds develop resistance; and explained that differing levels of resistance can stem from differing concentrations of  enzymes. He said, “It’s similar to when he drinks 5 beers, he knows he’d be under the table… but they’d be many who would not.”


Peter told the group that to use only one form of control is useless. He said “farmers know it, we must embrace it.”


Farmers are hand-weeding, using tractors to turn over soil between crops, and using other herbicides in addition to glyphosate.


His studies show the weeds that are developing the resistance to glyphosate include Annual Rye Grass, Fleabane, Windmill Grass and Feathertop Rhodes Grass.


SAGA’s Annual Industry Day looked at the current situation of weeds with resistance in Australia, explored options for prolonging the active life of glyphosate, and presented alternative herbicides and non-chemical ways of controlling weeds.


Second speaker, Chris Penfold, from University of Adelaide offered solutions to kill weeds without chemicals, with suggestions like using Wallaby Grass being used between grape vines, to provide an option that also sits well within its environment. However, many solutions have proven costly to farmers and land developers and not been deemed viable.


The issue is an ongoing discussion.





SAGA’s 2014 Industry Day: Life After Glyphosate

Held 4 July 2014, Adelaide




1800 991 985


08 8389 1854


[email protected]


9 Quinns Road, Forreston, SA, 5233



For further information, or any specific questions, comments or concerns you or your company may have, please contact the Smith & Georg offices.


 You could also check the Frequently Asked Questions (FAQ) page on their website.

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Charlie-Helen Robinson

As a professional contractor Charlie develops and manages communication, media and online or social media strategies, providing advice to maintain business reputations.

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Charlie-Helen Robinson
M: 61424644624
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Glyphosate, weeds, agriculture, horticulture, viticulture, Adelaide, South Australia, Smith & Georg



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