Agriculture, marketing and research is the career choice. Following Australian sports teams is the hobby. Snow skiing is the new passion!
Joined May 2011
- Tweets 1,989
- Following 887
- Followers 1,985
- Likes 1,560
169 Photos and videos
May 25
Another example to reinforce that it's not a good idea to mix fast acting contact herbicides (glufosinate) with systematic herbicides that need time to translocate through the plant (glyphosate)
Wild radish appears better controlled by either glufosinate or glyphosate applied as stand-alone. Mild antagonism observed with the tank mix.
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May 25
AMS showing its benefits to assist glyphosate in controlling self sown cereals and other grasses. Here it’s been tank mixed with triazines, with and without AMS and control
is chalk and cheese. AMS assisting with Antagonism with group 5 pre ems @CropDoctor54 @robbert115
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Apr 29
Autonomy Mark II this time with a lot more tech on board and a remote monitoring system as well. Ornata Ag system controlling the tractor and seeder. DickeyJohn ISO monitoring blockage, bin levels, fan speed and metering. The whole iso display is shared with Ornata Ag.
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Mark Congreve retweeted
Double & triple knock jobs working a treat on known resistant ryegrass populations.
1st pass Crucial alone (no spike) then 2nd pass group 14/G paraquat. 3rd pass if required another paraquat.
Pre ems also synergistic with paraquat eg Overwatch, Boxer, Reflex
@WeedSmartAU
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Feb 16
SA growers!
NEXT WEEK: GRDC herbicide behaviour workshops are coming to #Loxton 24-25 Feb #Kadina 26-27 Feb. Join @congreve_mark to learn the science underpinning how herbicides work & the application to field practice. Limited places.
More info: bit.ly/4pncKQ0
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Feb 13
Spots are going at @theGRDC herbicide behaviour workshops. Kadina and Toowoomba are full with a waiting list. Limited spots at Loxton and others. Grab your spot now. icanrural.com.au/herbicidewo… for a great couple of days with @congreve_mark
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Southern region agronomists
2026 Herbicide Behaviour workshops are rapidly approaching
Launceston 10-11 Feb (next week)
Loxton 24-25 Feb
Kadina 26-27 Feb (almost full)
Final workshops to be delivered under the current @GRDCSouth project
Registrations icanrural.com.au/herbicidewo…
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31 Oct 2025
Happy crops growing in the brand new @NSWDPI Wollongbar growth cabinets.
Great to have the opportunity to be involved with some trials with state of the art, full climate control facilities.
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Mark Congreve retweeted
29 Aug 2025
In 2026 UWA will test for herbicide resistance in ryegrass seeds.
Gr. 1 Axial, Clethodim
Gr. 2 Intervix
Gr. 3 Propyzamide, Trifluralin
Gr. 9 Glyphosate
Gr. 10 Liberty
Gr. 13 Overwatch
Gr. 15 Boxer Gold, Sakura
Gr. 22 Gramoxone
Gr. 23 Ultro
Gr. 30 Luximax
($250 per sample)
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Mark Congreve retweeted
2 Oct 2025
MAKING PRE-EMERGENT HERBICIDE SELECTION EASIER!
Selecting a pre-em herbicide can be challenging, particularly when seasonal rainfall is uncertain.
Use our simple, colour-coded & free chart for both wheat and barley crops - find it here: tinyurl.com/HartPreEmDecisio…
@SADroughtHub
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Mark Congreve retweeted
Great field day at the Collie site: Integrated mgt of black/wild oats in wheat using PRE herbicides & crop competition. Need more research. Thanks to growers, agros, @GRDCNorth, @GrainOrana, @QAAFI @UQ_News @UQWeedScience
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23 Sep 2025
Worth a read ( in the link) for those thinking about broadacre spraying via drones
23 Sep 2025
First impressions of the DJI Agras T100.
Going to be interesting to find a new operational settings "sweet spot" for this drone.
sprayers101.com/t100/
@cowbrough @AdamJPfeffer @drone_spray
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21 Aug 2025
There has been some recent discussion of clethodim degradation in 'old' formulations that have been in storage for a few years.
Below is another data set to support this observation from one of our 2025 field trials (phalaris in chickpea)
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Mark Congreve retweeted
25 Jul 2025
Limited spots are still available for the Moama and GRDC Herbicide Behaviour Workshop (Wagga full). Come along to learn about how and why herbicides react in the field.
Details: bit.ly/HerbicideWorkshops
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22 Jul 2025
Great work @Qantas
Cancelled leg 3 of my flight to Port Lincoln at last minute
No reason given. Pathetic customer service
Not acceptable to expect that next day travel will be fine.
$400 later and 3 hours delay & hopefully i will be travelling with your competition
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19 Jul 2025
EP Growers & Agros
Pre-em discussion & herbicide carryover trial walk
📍 Wed 23 July | 9am–12pm
🗺️SARDI Minnipa Ag Centre | Free morning tea
Thinking about coming? Please RSVP at ow.ly/tUsR50Wo6Qg so we know how many handouts to print
@SA_PIRSA @ag_eyre
Join herbicide expert Mark Congreve (ICAN) for a practical session on pre-em weed control in grain crops.
📍 Wed 23 July | 9am–12pm
🗺️ SARDI Minnipa Ag Centre | Free morning tea
📩 RSVP: ow.ly/tUsR50Wo6Qg
👨🌾 Open to all growers & agronomists
#GRDC #AgEvents2025
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15 Jul 2025
And please bring along your 'problem' questions.
I might not have all the answers, but want to understand where the data gaps exist.
Join herbicide expert Mark Congreve (ICAN) for a practical session on pre-em weed control in grain crops.
📍 Wed 23 July | 9am–12pm
🗺️ SARDI Minnipa Ag Centre | Free morning tea
📩 RSVP: ow.ly/tUsR50Wo6Qg
👨🌾 Open to all growers & agronomists
#GRDC #AgEvents2025
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15 Jul 2025
SCU research team about to kick off a massive task to establish dose responses for a wide range of crops to an even wider range of pre-em herbicides, across several soil types.
Pic below is Reflex to wheat - just as a practice to get the trial technique sorted.
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