This document is based on the results from individual trials. Variability in product performance is expected across trials and environments. Different outcomes are possible under different trial situations; brand of herbicide applied; environmental conditions before, at and following application; sprayer setup; adjuvant choice; water quality and spray volume; weed size and weed stress; and herbicide resistance status of the population. Trials seek to build on current knowledge – therefore this summary may contain experimental use patterns that are currently not specifically labelled for all of the weed(s) targeted in the trial, or treatments applied at a weed growth stage or application timing that may differ to the product label. In some circumstances, inclusion of a particular treatment is included to demonstrate why this product should not be used in that particular situation. Any research with unregistered agricultural chemicals or of unregistered products, rates or use patterns reported in this document does not constitute a recommendation for that particular use by the authors or the authors’ organisations. All agricultural chemical applications must accord with the currently registered label for that particular agricultural chemical, crop and region.
Any recommendations, suggestions or opinions contained in this publication do not necessarily represent the policy or views of the Grains Research and Development Corporation (GRDC) or Independent Consultants Australia Network (ICAN) or trial contractors. No person should act on the basis of the contents of this publication without first obtaining specific, independent, professional advice. The GRDC, ICAN and trial contractors will not be liable for any loss, damage, cost or expense incurred or arising by reason of any person using or relying on the information in this publication.
| Researcher(s) |
Mitch Buster Mark Congreve |
|---|---|
| Contact email | mark@icanrural.com.au |
| Contact phone | 0294824930 |
| Year(s) | 2025 |
| Contributor | ICAN Rural |
| Trial location(s) |
Spring Ridge, NSW
|
Carvero and Voraxor provided good levels of brownout at the 25DAA assessment when applied alone. Numerically, tank mixing paraquat with either herbicide tended to reduce control, although this was not statistically significant.
Sharpen treatments (+/- paraquat) tended to fall somewhere between the Terrad’or treatments and the Carvero or Voraxor treatments, with no dose response evident.
A subsequent germination of deadnettle (Lamium purpureum) occurred before the 25DAA assessment (data not shown). While there was some unevenness in germination across the trial, some observations can be made:
• Paraquat and Terrad’or alone or in combination provided very little / no residual activity against deadnettle at this assessment timing
• Sharpen at both rates (+/- paraquat) provided some useful level of residual activity at 25DAA, although control was variable between treatments. The variability across treatments may be reflective of uneven deadnettle pressure across the site.
• The four Carvero treatments (alone or with paraquat) were all rated between 7 and 9 out of 10 for residual control of deadnettle at 25DAA
| Lead research organisation |
Independent Consultants Australia Network Pty Ltd |
|---|---|
| Host research organisation |
AMPS Agribusiness |
| Trial funding source | GRDC ICN2404-002RTX;ICN2403-002RTX |
| Related program | N/A |
| Acknowledgments | N/A |
| Other trial partners | Not specified |
| Crop type | Weed: Other broadleaf |
|---|---|
| Treatment type(s) |
|
| Trial type | Experimental |
| Trial design | Randomised,Replicated,Blocked |
| Sow date | Not applicable |
|---|---|
| Harvest date | Not applicable |
| Plot size | Not specified |
| Plot replication | Not specified |
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.