Joined March 2009
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- Following 1,809
- Followers 3,718
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1,326 Photos and videos
Roberto Busi retweeted
One photo summary of wild oats resistance testing 2026 (% samples >20% survival):
-50% samples with FOP resistance,
-20% with DEN resistance,
-10% with DIM resistance (42g ai)
-0% with DIM resistance at full rate (120g ai).
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Jun 10
Is this the solution to all our CAPEWEED problems? Broadstrike PRE for 100% CW control!
If interested for more come to UWA to see herbicide action vs crop & pasture weeds.
[Yellow Serradella seeds collected with the CW]
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Jun 10
Spinnaker 100g PRE gave some control but no where neat the Broadstrike.
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Roberto Busi retweeted
Very good turnout this morning inspecting the results of recent resistance testing work in ryegrass, wild radish and wild oats. Send me a text if in Perth and want to inspect the pots - discuss results.
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Roberto Busi retweeted
Synergistic herbicide mixtures vs 36 samples of wild radish collected at harvest 2025.
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Roberto Busi retweeted
This is what I have observed on paraquat-resistant ARG (18DAT). Hasten with Gramx and AMS with glufosinate.
It's just a start, not yet an (scientific) answer but worthwhile a bit more work.
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Roberto Busi retweeted
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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Roberto Busi retweeted
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 22
Sorry to spoon the party: Picolinafen 50g (product) 180 metribuzin. Spectacular control of wild radish and the only 2026 treatment with no resistance ✅✅✅ (20 options trialled).
Most effective treatment for wild radish in 2026 resistance testing screening. What is it? Let us know, have a guess below in the poll…
For pots inspection send me a DM. In two weeks all radish, ryegrass, oats is ready to be seen (all together 50 herbicides tested)
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May 21
Pasture 365 trial at Rylington park (Boyup Brook, WA) comparing simple and complex mixes of pasture species (crops, clovers, lucerne, ryegrass, herbs mixed in 10 treatments). Small plots, 4 reps.
Focus on production, composition, feed quality and soil health (collab. with UWA).
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May 21
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May 2
Reflex PSPE 1000ml/ha applied on (from top left) Vetch, Perennial ryegrass, Cocksfoot, Phalaris and Wimmera ARG
Weeds (wild radish and capeweed in bottom right corner)
Vs
Untreated control
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Roberto Busi retweeted
We recently tested these WA ryegrass seedlings suspected of glyphosate resistance (photo of the paddock and transplanted ARG).
We tested full rates of:
- glyphosate
- clethodim
- glyph clethodim
- glyph glufosinate
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Roberto Busi retweeted
Sentry pre 50g against sensitive brome grass (left) vs IMI resistant brome (right)
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Roberto Busi retweeted
Doing resistance testing on capeweed some insight on which herbicide can do what (from left):
-0.5 Glyph450 👎
-0.5L Tigrex 👎
-1L Glyph 👍 (bare minimum)
-0.5L Spray.seed 👍👍
-2L glyph 450 👍👍
If you need resistance testing help pls send us a text or call.
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Mar 31
Statistical analysis update P365 project: Kg DM/ha for 8 pasture mixes grown at focal site in Manjimup (2024 & 2025)
ANOVA letters on the 2024 2025 DM totals.
Highlights:
-Highest production from annual mixes in 2024
- In 2025 perennial, diverse mixes outperform annuals
Jan 8
Today it was a great Pasture 365 field day at Manji! Thanks to all those attending, DPIRD Manji crew and Jeisane for organizing it all!
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Mar 31
Lucerne herb systems consistently high-performing
Mix 50 (lucerne chicory plantain grasses - photo Jan '26):
High production in both years
Best cumulative yield
Seeding rate was not a driver of productivity
High-rate mixes (e.g. 70 kg/ha) did not outperform lower-rate mixes
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Mar 31
-Annual systems (photo Jan '26) strong early production
-Perennial, diverse systems deliver the highest total productivity over time.
-Lucerne-based multi-species mixes were the most robust and productive across seasons.
-Resowing annuals did not overcome the performance gap
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