For many years the insect pest management research conducted by the Entomology Team at QDPI Farming Systems Institute, Toowoomba has relied on makeshift spray equipment for the application of pesticides. The investigations carried out included evaluation of biopesticides (Gemstar and Bt), insecticide interactions with beneficials, insecticide efficacy, pest exclusion studies and spray application evaluation. While the various researchers have achieved a great deal with the available equipment, there is scope for safer, more reliable and time efficient methods to conduct much of this research. This is very important as we strive to conduct our research under practical field conditions, and expand our research program related to the development of Best Practice and IPM in cotton. Insect and weeds researchers at ACRI have pioneered the design and construction of two high clearance multi-spray rigs and identified the most appropriate features for this equipment. Our proposal is to draw on the experience gained in the construction of the previous two spray units, and build a third unit for the QDPI Farmimg Systems Institute Toowoomba based research. The spray rig will be light weight and transportable on a tandem trailer so that it can be readily moved to various research locations on the Darling Downs and elsewhere as required.