Assessment of drift reducing technologies

Drift measurement in wind tunnel

Drift measurement in low speed wind tunnel

A three year research project is being undertaken by the University of Queensland, using a specialised wind tunnel facility located at Gatton, to determine the effectiveness of different drift reducing technologies (DRTs) and chemicals. This work is designed to support the development of a system that will enable both industry and regulators to assess ground and aerial sprayer DRTs in a time efficient, science based and transparent framework. The work is developing a new technical database (accommodating nozzles, formulations and adjuvants) that will support the use of DRTs for the application of pesticides using both aerial and ground equipment.

A process has been established by the NWPPA for interested stakeholders to nominate DRTs for inclusion in this program.  For more information please contact the NWPPA secretariat at Plant Health Australia.

Project updates

Project 1 is a three year research project being undertaken by the University of Queensland to determine the effectiveness of different DRTs and chemicals using a specialised wind tunnel facility located at Gatton. This work is designed to support the development of a system that will enable both industry and regulators to assess ground and aerial sprayer DRTs in a time efficient, science based and transparent framework. The work is developing a new technical database (accommodating nozzles, formulations and adjuvants) that will support the use of DRTs for the application of pesticides using both aerial and ground equipment. Some 1,340 measurements covering dozens of nozzle types and mostly glyphosate, paraquat and 2,4-D formulations have been carried out so far. The data has been screened and regression models are under development for AI and XR nozzles. Additional physical property measurements are underway. It is likely that this work will allow development of predictive models and Smartphone ‘Apps’ later in 2014. A process has been established by the NWPPA for interested stakeholders to nominate DRTs for inclusion in this program.
A three year research project is being undertaken by the University of Queensland, to determine the effectiveness of different DRTs and chemicals using a specialised wind tunnel facility located at Gatton. This work is designed to support the development of a system that will enable both industry and regulators to assess ground and aerial sprayer DRTs in a time efficient, science based and transparent framework. The work is developing a new technical database (accommodating nozzles, formulations and adjuvants) that will support the use of DRTs for the application of pesticides using both aerial and ground equipment. Some 1,340 measurements covering dozens of nozzle types and mostly glyphosate and 2,4-D formulations have been carried out so far. The data has been screened and regression models are under development for AIXR nozzles. It is likely that this work will allow development of fully predictive models rather than look-up tables A process has been established by the NWPPA for interested stakeholders to nominate DRTs for inclusion in this program.