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Summer Weed Control

Author Growing Solutions
Branding Ag Excellence
Credits SA No-Till Farmers Association
Video Transcript

With the increase of no-till and zero-till farming systems, the need for alternative methods of weed control is also rising. We hear from land owners in the Mallee region of South Australia, on the of summer weed control and management practices implemented on their properties. Weeds. Weeds are the number one enemy in summer and in the paths we’ve mainly looked at summer weed control just to eliminate viney type weeds so we can get through with the seeder but now we know that there’s more to summer weed control.

Weed Control Affects Downstream Issues – Like Snails

It’s about bringing the weed bank down. It’s about conserving moisture. It’s also a part of our snail management because if you’ve got those woody weeds in your stubble, that’s a haven for them to get up on and keep cool and to survive. So you find paddocks that have a lot of woody wades, and ones that tend to have higher snail numbers in them.

So if you control your summer weeds, that’s another way of managing snails, or its influence managing snails, so it’s not only just being able to get through the paddocks with our seeder, It’s also on moisure retention and snail control so we put a fair emphasis now on on summer weed control and also it’s disease as well.

Not only root disease but also leaf disease controlling volunteers . I don’t think we’ve ever gained 100% control on any weeds. We target one particular weed one year, and we one or two years down the ┬átrack, then another weed raises its head because that weed has given opportunity to multiply because we’re tackling something else, and so I think in regards to summer weeds or even winter weeds that’s going to be a moving target as to what our major issue is.

Summer Weeds – The #1 Challenge

Summer weeds are probably starting to become the number one enemy, because we know, clearly that by controlling summer weeds we increase our yield, because we’re keeping more moisture in the system than what we were previously when weeds get out of control, and it’s clear to see that the paddocks way had escaped summer weeds that yield is somewhat diminished by that We try and spray as early as we can and get a good kill first time round, and when we don’t then we try and leave it as long we can using sheep to control anything that comes up after that rather than spraying and then we try and come back in about March.

Particularly we’ve had some early rain and clean up all the summer weeds and also any self sown that may have germinated cleanup with that chemical application at that point in time. Yeah, but you get rain in even November not wasted if you can get it to go down deep and kill the weeds you’ll retain that moisture for later.

Growing Crops on Stored Moisture

In our last year we grew I reckon 70% of our crop on stored moisture It’s a big outlay, you’re only just getting your money in for your harvest but it’s one of your most important jobs I suppose. got to get out there and, timeliness, I mean we all struggle with it sometimes but we just got to try and, you know, soon as you see the first weed you got to start going because by the time they’re all perfect size, you’ve got them all to spray at once and you can’t physically do it.

It’s nearly to a stage now that it’s just a One step that we do, you know, it’s not a matter of if we go and spray the paddock, it’s a matter of when we spray it. And normally we like to try and get a with as little as possible, so now mandatory one spray. Sometimes you may have to come back with a second one

Local South Australian farmers speak to us about the importance of summer weed control.

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