| Researcher(s) | N/A |
|---|---|
| Year(s) | 2024 |
| Contributor | Northern Grower Alliance |
| Trial location(s) |
Narrabri, NSW
|
To evaluate the efficacy of tank mixtures of pyridines and glufosinate.
An NGA trial in 2022 showed a double knock of glufosinate (e.g. Biffo) followed by either picloram + 2,4 D (Tordon 75-D) or aminopyralid + metsulfuron-methyl (Stinger) significantly improved knockdown control of tall fleabane compared to glufosinate alone. Trials in 2023 indicated that it was the picloram (Group 4 pyridine carboxylic acid) that was providing the herbicide activity, rather than the 2,4-D. Additional trials in 2023 indicated tank mixtures may provide efficacy and management benefits compared to double knocks.
This protocol was designed to evaluate the impact of two common pyridine carboxylic acid active ingredients (picloram (Picoflex) and aminopyralid (Grindstone)) when used as tank mixtures with two rates of glufosinate. Three rates of glufosinate were included as efficacy benchmarks.
| Lead research organisation |
Northern Grower Alliance |
|---|---|
| Host research organisation | N/A |
| Trial funding source | GRDC NGA2009-002RTX |
| Related program | N/A |
| Acknowledgments | N/A |
| Other trial partners | Not specified |
| Crop type | None: No crop specified |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated,Blocked |
| Sow date | Not applicable |
|---|---|
| Harvest date | Not applicable |
| Plot size | 2m x 12m |
| Plot replication | 3 |
SILO weather estimates sourced from https://www.longpaddock.qld.gov.au/silo/
Jeffrey, S.J., Carter, J.O., Moodie, K.B. and Beswick, A.R. (2001). Using spatial interpolation to
construct a comprehensive archive of Australian climate data , Environmental Modelling and Software, Vol
16/4, pp 309-330. DOI: 10.1016/S1364-8152(01)00008-1.
