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Collecting and destroying weed seeds as part of the harvest operation is recognised as the most efficient and effective way to implement harvest weed seed control (HWSC) within an integrated weed management system.
Acknowledged as the ‘holy grail’ of the WeedSmart Big 6 tactics to manage herbicide resistance, HWSC was implemented on over 40 per cent of Australian grain farms in 2014 and adoption is expected to increase to 80 per cent by 2020.
For many years we have focused on the different HWSC tools on the back of the harvester and what has become very apparent is the need to set up the harvester to ensure that the vast majority of weed seeds enter the HWSC tool.
In this webinar, Peter Newman and Ray Harrington will discuss the four stages of HWSC:
1. Get weed seeds in the front of the harvester
2. Get weed seeds out of the rotor – concaves/rotor speed
3. Keep weed seeds in the chaff stream – wind/baffles
4. Put weed seeds into one of the six HWSC tools
We'll discuss how to set up a range of machines to maximise weed seed capture.
We have a special guest co-host this week, with Planfarm Agronomist Dani Whyte joining Jessica Strauss, providing insights on farmer interviews she conducted last harvest.
Our theme for 2018 was “Diversify and Conquer – manage weeds using the BIG 6”.Growers and agronomists delivered key messages on using diversity to control weeds at the forum day at Locharba Station, Narrabri. Farm visits followed on the next day, where attendees had the opportunity to talk directly to growers and farm managers about their farming systems. Thank you to everyone who made the event a great success!.
This is our second online course, this time covering the science of harvest weed control; the nutrient implications; and the costs of all the different tools.
We'll run through all of the six different harvest weed control tools too, talking about the pros and cons and about where they fit in the farming system!
If you're a grower or an agronomist and you'd like to find out more about these tools, take a look at this course.