More effective and reduced pesticide use in broad acre landscapes by using optical sensing devices to detect and “spot spray” weeds”


Research organisaton
Funding source

Trial details

Researcher(s) N/A
Year(s) 2014
Contributor Upper North Farming Systems
Trial location(s) Site 2, Jamestown, SA
More effective and reduced pesticide use in broad acre landscapes by using optical sensing devices to detect and “spot spray” weeds” locations
  • To evaluate the suitability of "spot spray" technology to control weeds on farming land in the Upper North.
  • To monitor weed control success on "hard to control" summer weeds such as fleabane, onion weed, saltbush type weeds.
  • To record the reduction in pesticide and water use using "spot spray" technology compared to conventional spraying.
  • To raise awareness amongst the community about the potential benefits of "spot spray" technology.
Key messages
  • Summer weed control is proven to increase yield, but is becoming a major cost and some summer weeds are difficult to control.
  • Cost savings of 20-90% were achieved across 20 paddocks using the WEEDit™.
  • A major benefit of the Spot Spray Technology was the ability to use high rates of chemical to spot spray hard-to-kill weeds such as fleabane and stinkweed.
Lead research organisation Upper North Farming Systems
Host research organisation Upper North Farming Systems
Trial funding source GRDC
Related program Production and Environment Partnerships Project

Matt McCallum and Ruth Sommerville

Other trial partners Not specified


Crop type No crop specified
Treatment type(s)
  • Herbicide: Application
Trial type Demonstration
Trial design Unreplicated

Jamestown 2014

Sow date Not specified
Harvest date Not specified
Plot size Not specified
Plot replication Not specified
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
Site 2, Jamestown, SA Various
Derived trial site soil information
Australian Soil Classification Source
Trial site Soil order
Site 2, Jamestown, SA Sodosol
National soil grid Source
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



Derived climate information

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

Site 2, Jamestown SA

CAUTION: Trial site locality unknown; Climate data sourced from Upper North Farming Systems office location

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

SILO weather estimates sourced from
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

No trial reports or attachments found

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Trial last modified: 27-06-2019 11:39am AEST