Economic evaluation of a weed-activated sprayer for herbicide application to patchy weed populations

Spatial distribution of weeds in a crop is patchy. Traditional boom sprayers waste herbicide by applying it to areas where weed density is already low. A new technology, Weed Activated Spray Process (WASP), uses sensors to detect the presence of weeds and control spray nozzles accordingly. The economic benefits of this technology to extensive crop farmers in Western Australia are investigated using a model based on the economics of information. Existing technology is likely to reduce profits because the weed density at which it switches off spraying is too high. Even if sensitivity to low densities could be improved, likely benefits of pre‐crop usage would still be very low or negative.

Issue Date:
Publication Type:
Journal Article
Record Identifier:
PURL Identifier:
Published in:
Australian Journal of Agricultural and Resource Economics, Volume 42, Issue 4
Page range:
Total Pages:

 Record created 2017-04-01, last modified 2018-01-22

Download fulltext

Rate this document:

Rate this document:
(Not yet reviewed)