Annual ryegrass control with new pre-emergent herbicides and mixtures

2020
CC BY 4.0

Research organisation
Funding source

Trial details

Researcher(s) Rebekah Allen
Christopher Preston
Year(s) 2020
Contributor Hart Field Site Group
Trial location(s) Hart, SA
Further information View external link
Annual ryegrass control with new pre-emergent herbicides and mixtures locations
Aims

To evaluate the effect of new pre-emergent herbicides Luximax (active ingredient, cinmethylin) and Overwatch (active ingredient, bixlozone) alone or in mixtures with existing preemergent herbicides on annual ryegrass control.

Key messages

• Luximax and Overwatch improved annual ryegrass control (10-26 plants/m2) compared to existing pre-emergent herbicides (45 -158 plants/m2).
• Annual ryegrass (heads/m2) were reduced when Luximax and Overwatch were applied standalone or in mixtures.
• Post-seeding conditions at Hart were dry with well below average rainfall, favouring the more soluble pre-emergent products, Luximax and Overwatch.
• No yield penalties were observed for Scepter wheat across all pre-emergent herbicides at Hart in 2020.

Lead research organisation N/A
Host research organisation N/A
Trial funding source GRDC UQ00080
Related program N/A
Acknowledgments

Funding for this work was provided through GRDC project UQ00080.


Other trial partners Not specified
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Method

Crop type Cereal (Grain): Wheat
Treatment type(s)
  • Herbicide : Type
Trial type Unknown
Trial design Unknown

Hart 2020

Sowing machinery

Standard knife-point press wheel system, 22.5 cm (9") row spacing.

Sow date 20 May 2020
Harvest date 3 December 2020
Plot size 1.75m x 10.0m
Plot replication Not specified
Fertiliser

Seeding: DAP (18:20) + 1% Zn + Impact @ 80 kg/ha
Easy N (42.5:0) 80 L/ha on June 18, 2020
Easy N (42.5:0) 50 L/ha on August 5, 2020

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Trial source data and summary not available
Check the trial report PDF for trial results.
Observed trial site soil information
Trial site soil testing
Not specified
Soil conditions
Trial site Soil texture
Hart, SA Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Hart, SA Chromosol

Climate

Derived climate information

No observed climate data available for this trial.
Derived climate data is determined from trial site location and national weather sources.

Hart SA

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Some data on this site is sourced from the Bureau of Meteorology

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.

Trial report and links

2020 trial report



Trial last modified: 22-07-2026 13:09pm AEST