Thrips threshold validation – commercial-scale experiments

2014 - 2015

Research organisaton
Funding sources
Cotton Research Develeopment Crporation (CRDC) <abbr title='Department of Primary Industries (New South Wales)'>DPI NSW</abbr>

Trial details

Researcher(s) Sarah Beaumont (NSW DPI)
Sandra McDougall (NSW DPI)
Jianhua Mo (NSW DPI)
Liz Munn (NSW DPI)
Scott Munro (NSW DPI)
Mark Stevens (NSW DPI)
Year(s) 2014 - 2015
Contributor Department of Primary Industries NSW
Trial location(s) Darling Point, NSW
Whitton, NSW
Further information View external link
Thrips threshold validation – commercial-scale experiments locations
Aims

These experiments were conducted to evaluate whether thrips controls applied at the thrips threshold led to higher or lower yields when compared with treatments at a lower threshold (one thrips per plant) and a non-spray treatment. The local cotton industry supported commercialscale experiments over small plot experiments. 

Key messages
  • Thrips pressure reached the positive control threshold of one thrips per plant in late October while plants were at the cotyledon to 1-leaf stage.
  • Thrips pressure reached the industry threshold of 10 thrips per plant in mid-November when plants were at the 4–5-leaf stage.
  • Onion thrips were the dominant thrips species observed during monitoring.
  • Western flower thrips (WFT) constituted less than 5% of thrips monitored.
  • There was no yield difference between sprayed and unsprayed plots.
Lead research organisation N/A
Host research organisation N/A
Trial funding source Cotton Research Develeopment Crporation (CRDC) DAN1501
Trial funding source DPI NSW
Related program N/A
Acknowledgments

This project was jointly funded by the CRDC ‘Establishing Southern Cotton -IPM project’, DAN1501, 2014–17, and NSW DPI. We greatly appreciate the cooperation of the IREC demonstration farm committee, the Stott family and farm staff, James Hill, and Matt Watson.

Thanks to Dupont, Dow AgroSciences and Caltex for supplying insecticides for the experiment. Thanks to Jorian Millyard (Cotton Seed Distributors) for supplying seed and trailer scales for weighing modules.

Thanks to Lewis Wilson (CSIRO) for advice. Thanks to Warrick Stillard (CSIRO) and team for hand ginning our cotton samples.


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

Method

Crop type Other crop: Cotton
Treatment type(s)
  • Pest Management: Other Pests
Trial type Experimental
Trial design Randomised,Replicated,Blocked

Darling Point 2014

Sow date 10 October 2014 1 October 2014 and 10 October 2014
Harvest date Hand harvest 7 and 14 May 2015. Machine harvest 23 and 26 May 2015
Plot size Not specified
Plot replication 4
Plot blocking Randomised block-plot
Plot randomisation yes
Seed treatment Dynasty® – azoxystrobin+ metalaxyl-M+ fludioxonil
Other trial notes

This research paper is an extract from the publication Southern NSW Research Results 2015, available at
https://www.dpi.nsw.gov.au/agriculture/broadacre-crops/guides/publications/southern-nsw-research-results

Whitton 2014

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
Plot blocking Not specified
Plot randomisation Not specified
Seed treatment Not specified
Other trial notes

This research paper is an extract from the publication Southern NSW Research Results 2015, available at
https://www.dpi.nsw.gov.au/agriculture/broadacre-crops/guides/publications/southern-nsw-research-results

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
Darling Point, NSW Not specified
Whitton, NSW Not specified
Derived trial site soil information
Australian Soil Classification Source: ASRIS
Trial site Soil order
Darling Point, NSW Kandosol
Whitton, NSW Kandosol
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 Darling Point NSW Whitton NSW
2015 291.8mm586.4mm
2014 277.5mm531.8mm
2013 284.0mm519.5mm
2012 283.5mm576.0mm
2011 295.5mm601.2mm
2010 285.7mm638.0mm
2009 273.9mm589.9mm
2008 296.3mm569.3mm
2007 293.2mm473.7mm
2006 263.2mm556.2mm
2005 266.9mm588.9mm
2004 268.7mm549.4mm
2003 270.3mm527.2mm
2002 258.7mm528.8mm
2001 298.8mm567.6mm
2000 250.3mm482.0mm
National soil grid Source: CSIRO/TERN
NOTE: National Soil Grid data is aggregated information for background information on the wider area
Actual soil values can vary significantly in a small area and the trial soil tests are the most relevant data where available

Soil properties

Loading

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.

Darling Point NSW

Whitton NSW

Darling Point NSW

NOTE: Exact trial site locality unknown - Climate data may not be accurate
Loading
Loading
Loading

Whitton NSW

Loading
Loading
Loading

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

2014 trial report



Trial last modified: 20-10-2023 08:09am AEST