Roberto Busi

Bob's dad
Pasture Weed Scientist @DPIRDbroadacre
Adjunct @UWAresearch

[Roberto Busi @robbert115]

@farmersgrowit With paraquat -even at new low rate applied- all spikes are similar as the paraquat did 99% of the heavy lifting.
With glufosinate (2L) it becomes more clear what Gr. 14 rate / active to use to deliver (in pots) 100% efficacy. Voraxor 100ml was good & a few others tank mixes.

[Roberto Busi @robbert115]

In the presence of glyphosate resistant ryegrass the majority responded a robust glyphosate rate + spike would be their preferred effective choice.

In this study glyphosate + spike is actually the least effective strategy! See below a few photos and a new predictive poll.👇

[Roberto Busi @robbert115]

@lonsdad1 Agreed 200%

[Roberto Busi @robbert115]

Capeweed (and Erodium) control by Sentry vs Broadstrike applied PRE. Wild radish (at least in pots) only lightly suppressed by both treatments.

[Roberto Busi @robbert115]

Untreated control

[Roberto Busi @robbert115]

@MartinMarzetti @andreshadoc El concepto de «spike» (no como nombre comercial de un herbicida) se refiere a un producto que, por sí solo, no elimina la maleza, pero que acelera la acción del producto principal de control (knock-down).

[Roberto Busi @robbert115]

@becsta1984 @S_M_Bowman It was very dense and 4-5 leaf ryegrass. I was expecting Paraquat to fail due to ARG density. Now I delayed on purpose the 2nd knock to hopefully see low Paraquat solo give subpar control (so that I can separate / rank spikes that go with it).

[Roberto Busi @robbert115]

@grassrootsag @WeedSmartAU Thanks Greg. Just to clarify: the ryegrass was resistant to glyphosate -> glyphosate solo was the absolute worst amongst all the treatments tested.

Glyphosate + spike is some cases was very effective (and much more than solo glyph) but would probably need a 2nd knock.

[Roberto Busi @robbert115]

@andreshadoc Erbicida PPO “herbicida de contacto de acción rápida, utilizado por complementar un otro erbicida mainstream.

[Roberto Busi @robbert115]

If you can only use 231g / ha paraquat what would be your preferred double knock strategy:any

[Roberto Busi @robbert115]

Minimal variation with the low rate of paraquat 231g/ha applied under carefully controlled conditions: control always >95%. Surprising this strategy was the most effective and yet lowest confidence in it as the pool show the least preferred.

[🫧 Vla 🫧 @thedoctordonnna]

Mi mancherete tantissimo non posso sopportare questo divorzio

[Roberto Busi @robbert115]

@therealbiztang @DMAg_consultant @CropDoctor54 @agrobaz Probably as much as you can use of Paraquat + as much Glufosinate + Whatever Gr. 14?

[Roberto Busi @robbert115]

When we trial the chemistry in pots against glyphosate resistant ARG, there is plenty of options that works close to 100%. Then there is the real world Matt is battling with 😁🙈

[Matt Witney @DMAg_consultant]

Brown manures needing a rye grass mop up - the size of them shows they escaped the double knock with a decent level of gly resistance ✊- bringing down these will be a challenge and difficult in one pass 🌱 but critical to do so. @robbert115 @CropDoctor54 @agrobaz

[Roberto Busi @robbert115]

In WA there is the toughest-to-kill wild radish. Every year we do offer the most comprehensive test at a very reasonable (lowest) price. If your radish gives you problems send me an email…

[WeedSmart @WeedSmartAU]

An update on resistance to Group 2 herbicides, courtesy of Roberto Busi.

Investing in a herbicide resistance test could save you thousands. Find out more: https://t.co/pIEDEjXZXm

@robbert115

[Roberto Busi @robbert115]

Flyer here for field day.

[Roberto Busi @robbert115]

Tomorrow there should be a short segment of my interview at ABC either 6.15am or/and 12pm Country hour. Field walk (organised by Boyup Brook Ag Supplies) at Rylington Park next week 14/10

[Roberto Busi @robbert115]

Tomorrow there should be a short segment of my interview at ABC either 6.15am or/and 12pm Country hour. Field walk (organised by Boyup Brook Ag Supplies) at Rylington Park next week 14/10

[DPIRD Broadacre - WA Grains & Livestock @DPIRDbroadacre]

Which pasture mixes perform best under WA conditions? 🌱 Researchers are evaluating 20+ pasture combinations to identify options that can fill feed gaps, boost productivity and build drought resilience 🐑 Learn more about Pasture 365 👉🏼 https://t.co/2FltdSMy9K
@Deakin @IOA_UWA