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Considerations for pre-emergent herbicides with dry sowing
In this webinar, we focus on what factors influence the residual control of weeds by pre-emergent herbicides with a focus on Trifluralin, Sakura and new-to-market herbicides. Join Chris Davey, YPAG and WeedSmart Extension Agronomist and Mark Congreve, ICAN Senior Agronomist as they assess the sowing issues in South Australia and discuss strategies on using pre-emergents. Factors covered include Soil type/texture Rainfall forecast (after application) Characteristics of the herbicide Characteristics of the crop Sowing time (tine vs disc) – sowing depth, speed, soil throw, stubble Resistance status GRDC Spray Application Manual This Spray Application GrowNotes™ manual provides information on how various spraying systems and components work, along with those factors that the operator should consider to ensure the sprayer is operating to its full potential. This manual focuses on issues that will assist in maintaining the accuracy of the sprayer output while improving the efficiency and safety of spraying operations. It contains many useful tips for your spray operations.
Benefits of continuous spraying when weeds are small and Terrad’or explainer
Back in February and March of 2020 Tim had some summer rain and decided to look at the weeds not the temperature. If the weeds weren’t moisture stressed he kept spraying all day even when it was hot. He had some great results which we’ll get into in this podcast. We’ll also be hearing from Nufarm’s André Sabeeney and Mitch Allen about their new product Terrad’or. Terrad’or is a new Group G herbicide from Nufarm. This product is best partnered with glyphosate as a knockdown spike or mixed with paraquat for double knock application. Spray Application Manual The GRDC has published an excellent spraying manual you can access. This Spray Application GrowNotes™ manual provides information on how various spraying systems and components work, along with those factors that the operator should consider to ensure the sprayer is operating to its full potential. This manual focuses on issues that will assist in maintaining the accuracy of the sprayer output while improving the efficiency and safety of spraying operations. It contains many useful tips for your spray operations. The manual includes information on sprayer set-up, including self-propelled sprayers, new tools for determining sprayer outputs, suggestions for assessing spray coverage in the field, improving droplet capture by the target, drift-reducing equipment and techniques, the effects of adjuvant and nozzle type on drift potential, and surface temperature inversion research. Get the details here. Regional Update Our next Regional Update will come out next Monday and is with Research Officer Catherine Borger from the Department of Agriculture and Food Western Australia. You can ensure you don’t miss it by subscribing to the podcast on your app of choice. New content Our latest Ask an Expert is “How can I maximise grass weed control using hybrid canola?” EPAG Research agronomist, Andrew Ware answers the question and says the results of six years of trial work across the southern growing region with GRDC investment has demonstrated how important crop nutrition and time of sowing are for maximising canola vigour and yield. Read it here. Also, don’t miss our latest Case Study on Single family, Coonamble NSW. Tony and Sharon Single farm with Tony’s parents John and Mary, south east of Coonamble in northern NSW with views of the Warrumbungle Range. Across the 4500 ha cropping area at ‘Narratigah’, the weed numbers are low as a result of the Single’s ‘farming moisture’ philosophy, which involves planting whenever there is sufficient subsoil moisture to establish a competitive crop on their heavy clay soils. Read it here.
Lupins & other pulses to benefit from new addition of Reflex in weed control tool kit
With so many new products hitting the market and plenty more in the pipeline, it’s beneficial to find out the details about these new products and how they might fit into farming systems. Syngenta’s Technical Services Lead James Considine (pictured above in a faba bean trial last year, during the Victorian covid restrictions. Left of James is untreated and right is Reflex treated) joins us to give an overview Reflex. Planfarm Agronomist, Nick McKenna is also our guest. Nick has been speaking with growers who have just received their first allocation of Reflex. He provides some insights on how it’s being received and what it could mean for the future of lupins and other pulses. Planfarm Agronomist, Nick McKenna, Geraldton, WA. Up next Our next Regional Update will come out next Monday and is with Craig Davis who is an independent Agronomist based in South Australia. You can ensure you don’t miss it by subscribing to the WeedSmart podcast on your podcast app of choice. New content We’ve got great content on the WeedSmart website for you to check out. The question ‘How can I ensure my complex tank mix is compatible and sprays out? Is answered in our latest Ask an Expert with Stephen Pettenon, technical services specialist, FMC. Check it out here. Also, don’t miss our latest Case Study on Kurt Mayne from Rolleston in Qld. Kurt discusses the decisions around swapping patch cultivation for optical spraying technology in fallow. Check it out here. We also have another Case Study out this week on the Single family based in Coonamble, NSW. Farming moisture their risk management strategy and it has paid off time and time again for them. Make sure you’re following us on Twitter so you don’t miss it!
What matters more? Crop sequence or seeder?
Why were the batsmen tampering with the ball, shouldn’t that be the bowler’s job? These are all questions that were being asked by a local project committee of growers and advisers, and there was only one way to answer them. Enter Tony Swan from CSIRO. He and his team embarked on a massive, long-term research effort in Temora NSW, working with FarmLink Research to make it happen. The trial ran from 2014 to 2017 and the preliminary results are in. And the winner is… DIVERSITY. (Insert a fist pump from Professor Steve Powles here!) Diverse crop rotations, including a double break, premium herbicides, with some extra crop competition courtesy of barley thrown in, and we have a winner. This diverse crop rotation smashed ryegrass numbers down from 1864 plants/m2 to 145 plants/m2 in just three years, and it was also the most profitable rotation. Article courtesy AHRI. Link the full article can be found here
Double breaks – a double shot at annual ryegrass
Perhaps you’re a ‘short black’ wheat-canola type, strong on inputs? Or a ‘long black’ type who likes to dilute their rotations a bit more? Or are you a ‘double shot’, throwing in a few break crops in a row for maximum effect? When it comes to managing annual ryegrass populations, Tony Swan and the research team from CSIRO Plant Industry and FarmLink, have shown that ‘double shots’ are the key. Growing two break crops in sequence (broadleaf crop, hay crop or long fallow) was more effective in reducing resistant ryegrass numbers to manageable levels than a single break crop or continuous wheat over a three-year rotation. And it can still be profitable.
Stewardship First SprayBest Guide
The application of herbicides late in the season to prevent weeds setting seed or to desiccate crops must be carried out with caution and in line with herbicide label recommendations. It is essential to check if these practices are acceptable to buyers, as in some situations markets have extremely low or even zero tolerance to some pesticide and herbicide residues.