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Control of loose smut, spot from net blotch, powdery mildrew and leaf rust through soil and foliar fungicides in Bass barley

2015
CC BY 4.0

Research organisations
Funding source
West Midlands Group Bayer CropScience
<abbr title='Bayer Crop Science'>Bayer</abbr>

Trial details

Researcher(s) Rick Horbury (Bayer Crop Science)
Year(s) 2015
Contributor West Midlands Group
Trial location(s) Dandaragan, WA
Control of loose smut, spot from net blotch, powdery mildrew and leaf rust through soil and foliar fungicides in Bass barley locations
Aims
  • To evaluate early foliar disease suppression of soil applied fungicides.
  • To compare early soil disease control to a foliar only strategy.
  • To compare efficacy of different foliar fungicides on yield at a ~Z31 and Z39 applications.
  • To compare seed treatment and Aviator Xpro foliar for SFNB.
Key messages
  • A Predicta B sample taken from the site indicated a medium risk of rhizoctonia although patches did not express during the season.
  • Early establishment across the site was severely impacted by non-wetting affected all plots across the trial with the worst of it commencing around plot 215 and increasing in severity throughout replicate 3.  Early dry conditions further staggered the crop emergence.
  • Good rains through late July and into early August ensured the crop was growing well albeit patchy across the trial with high levels of disease present at both the Z31 and Z39 applications. Only 48.9 mm of rain fell from the second Z39 application to the end of October reducing the benefits to yield of the different fungicide treatments.
  •  Increasing variability in the trial due to the sub-soil issues from plot 215 into replicate 3 was a significant factor. Yield data should be treated with caution due to the variability of the site with disease control is the most accurate assessment of treatment efficacy.
Lead research organisation Bayer CropScience
Host research organisation West Midlands Group
Trial funding source Bayer
Related program N/A
Acknowledgments

Thanks to Living Farm for the application, seeding and harvest of the trial, thanks to Susie Mason from Elders Moora for assistance with assessments and the Roberts family for the site.

Aviator®, EverGol®, Baytan®, Prosaro® and Velocity® are registered trademarks of the Bayer Chemical Group. DC- 150 is an experimental Bayer CropScience product.

 
Other trial partners Not specified
Download the trial report to view additional trial information

Method

Crop type Cereal (Grain): Barley
Treatment type(s)
  • Pest Management : Fungal
Trial type Experimental
Trial design Replicated

Dandaragan 2015

Sow rate or Target density 80kg/ha
Sowing machinery

Knife points and press wheels on 25.4cm row spacing.
Sow date 25 May 2015
Harvest date Not specified
Plot size 2.5m x 12m
Plot replication 3
Fertiliser

80kg/ha Gusto Gold, 40kg/ha Urea top-dressed + 60L/ha UAN banded.
Herbicide

Pre-emergent:           2L/ha Sprayseed + 2.5L/ha Boxer Gold+ 75g/ha Metribuzin

Post-emergent:         1 L/ha Velocity + Hasten 1 %
Insecticide

1L/ha Chlorpyrifos + 200mL/ha bifenthrin at sowing.
Fungicide

As per protocol applied at 100 L/ha using LD11002DG nozzles at 2 bar

Application C: Z31/32 4/8/15, Application D: Z39 20/8/15
Download the trial report to view additional method/treatment information
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
Dandaragan, WA Loamy sand
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Dandaragan, WA Tenosol
Soil Moisture Source: BOM/ANU
Average amount of water stored in the soil profile during the year, estimated by the OzWALD model-data fusion system.
Year Dandaragan WA
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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.

Dandaragan WA

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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

2015 trial report



Trial last modified: 23-07-2019 11:52am AEST