Overview
Availability
- Dr Andrew Hewitt is:
- Available for supervision
Fields of research
Qualifications
- Bachelor (Honours) of Science (Advanced), University of Sheffield
- Masters (Coursework) of Science, Cranfield Institute of Technology (Cranfield University)
- Doctor of Philosophy, University College London
Works
Search Professor Andrew Hewitt’s works on UQ eSpace
2019
Journal Article
Optimization of variables for maximizing efficacy and efficiency in aerial spray application to cotton using unmanned aerial systems
Liao, Juan, Zang, Ying, Luo, Xiwen, Zhou, Zhiyan, Lan, Yubin, Zang, Yu, Gu, Xiuyan, Xu, Weiming and Hewitt, Andrew John (2019). Optimization of variables for maximizing efficacy and efficiency in aerial spray application to cotton using unmanned aerial systems. International Journal of Agricultural and Biological Engineering, 12 (2), 10-17. doi: 10.25165/j.ijabe.20191202.4288
2019
Journal Article
脉宽调制变量控制喷头雾化性能及风洞环境雾滴沉积特性
Zhang, Ruirui, Li, Longlong, Fu, Wang, Chen, Liping, Yi, Tongchuan, Tang, Qing and Hewitt, Andrew J. (2019). 脉宽调制变量控制喷头雾化性能及风洞环境雾滴沉积特性. Nongye Gongcheng Xuebao, 35 (3), 42-51. doi: 10.11975/j.issn.1002-6819.2019.03.006
2019
Journal Article
Droplet-size effects on control of Chloris spp. with six POST herbicides
Ferguson, J. Connor, Chauhan, Bhagirath S., Chechetto, Rodolfo G., Hewitt, Andrew J., Adkins, Steve W., Kruger, Greg R. and O'Donnell, Chris C. (2019). Droplet-size effects on control of Chloris spp. with six POST herbicides. Weed Technology, 33 (1), 153-158. doi: 10.1017/wet.2018.99
2019
Journal Article
Field evaluation of an unmanned aerial vehicle (UAV) sprayer: effect of spray volume on deposition and the control of pests and disease in wheat
Wang, Guobin, Lan, Yubin, Qi, Haixia, Chen, Pengchao, Hewitt, Andrew and Han, Yuxing (2019). Field evaluation of an unmanned aerial vehicle (UAV) sprayer: effect of spray volume on deposition and the control of pests and disease in wheat. Pest Management Science, 75 (6), 1546-1555. doi: 10.1002/ps.5321
2018
Journal Article
喷雾助剂类型及浓度对喷头雾化效果影响
Zhang, Ruirui, Zhang, Zhen, Xu, Gang, Chen, Liping and Hewitt, Andrew J. (2018). 喷雾助剂类型及浓度对喷头雾化效果影响. Nongye Gongcheng Xuebao, 34 (20), 36-43. doi: 10.11975/j.issn.1002-6819.2018.20.005
2018
Journal Article
Field Measurements of Drift of Conventional and Drift Control Formulations of 2,4-D Plus Glyphosate
Havens, Patrick L., Hillger, David E., Hewitt, Andrew J., Kruger, Greg R., Marchi-Werle, Lia and Czaczyk, Zbigniew (2018). Field Measurements of Drift of Conventional and Drift Control Formulations of 2,4-D Plus Glyphosate. Weed Technology, 32 (5), 550-556. doi: 10.1017/wet.2018.55
2018
Journal Article
Effect of spray droplet size on herbicide efficacy on four winter annual grasses
Ferguson, J. Connor, Chechetto, Rodolfo G., Adkins, Steve W., Hewitt, Andrew J., Chauhan, Bhagirath S., Kruger, Greg R. and O'Donnell, Chris C. (2018). Effect of spray droplet size on herbicide efficacy on four winter annual grasses. Crop Protection, 112, 118-124. doi: 10.1016/j.cropro.2018.05.020
2018
Journal Article
Drift measurements for two systems of hydrogen cyanamide spraying in kiwifruit
Connell, Robert, Post, Scott, Ledebuhr, Mark, Moorhead, Brian and Hewitt, Andrew (2018). Drift measurements for two systems of hydrogen cyanamide spraying in kiwifruit. New Zealand Plant Protection, 71, 19-24. doi: 10.30843/nzpp.2018.71.186
2018
Conference Publication
Herbicide spray penetration into corn and soybean canopies using air-induction nozzles and a drift control adjuvant
Creech, Cody F., Henry, Ryan S., Hewitt, Andrew J. and Kruger, Greg R. (2018). Herbicide spray penetration into corn and soybean canopies using air-induction nozzles and a drift control adjuvant. Cambridge, United Kingdom: Cambridge University Press. doi: 10.1017/wet.2017.84
2018
Conference Publication
Is Retention the Old-New Problem in a Drift-Control Era?
Costa, Fernanda, Forster, W. Alison, Favaro, Cintia, Golfetti da Silva, Vanessa R. and Hewitt, Andrew (2018). Is Retention the Old-New Problem in a Drift-Control Era?. 38th Symposium on Pesticide Formulation and Delivery Systems: Innovative Application, Formulation, and Adjuvant Technologies, New Orleans LA United States, 10-12 October 2017. West Conshohocken, PA United States: A S T M International. doi: 10.1520/STP167020770213
2018
Journal Article
Flat-fan spray atomization model
Post, S. L. and Hewitt, A. J. (2018). Flat-fan spray atomization model. Transactions of the ASABE, 61 (4), 1249-1256. doi: 10.13031/trans.12572
2018
Journal Article
Laboratory measurements of evaporation rate of droplets at low relative wind speed
Teske, M. E., Thistle, H. W., Riley, C. M. and Hewitt, A. J. (2018). Laboratory measurements of evaporation rate of droplets at low relative wind speed. Transactions of the ASABE, 61 (3), 919-923. doi: 10.13031/trans.12743
2017
Journal Article
Wind tunnel flux comparisons using a phase Doppler interferometer
Roten, Roy L., Post, Scott L., Werner, Armin, Safa, Majeed and Hewitt, Andrew J. (2017). Wind tunnel flux comparisons using a phase Doppler interferometer. Journal of Plant Protection Research, 57 (3), 281-287. doi: 10.1515/jppr-2017-0040
2017
Journal Article
Phase doppler quantification of agricultural spray compared with traditional sampling materials
Roten, R. L., Post, S. L., Werner, A., Safa, M. and Hewitt, A. J. (2017). Phase doppler quantification of agricultural spray compared with traditional sampling materials. New Zealand Plant Protection, 70, 142-151. doi: 10.30843/nzpp.2017.70.40
2017
Journal Article
Aerially released spray penetration in a tall coniferous forest canopy
Thistle, H. W., Reardon, R. C., Bonds, J. A. S., Fritz, B. L., Hoffmann, W. C., Kees, G. J., Grob, I. J., Hewitt, A. J., O'Donnell, C. C., Felton, K. D. and Onken, B. P. (2017). Aerially released spray penetration in a tall coniferous forest canopy. Transactions of the ASABE, 59 (5), 1221-1231. doi: 10.13031/trans.59.11872
2016
Journal Article
Pressure, droplet size classification, and nozzle arrangement effects on coverage and droplet number density using air-inclusion dual fan nozzles for pesticide applications
Ferguson, J. Connor, Hewitt, Andrew J. and O'Donnell, Chris C. (2016). Pressure, droplet size classification, and nozzle arrangement effects on coverage and droplet number density using air-inclusion dual fan nozzles for pesticide applications. Crop Protection, 89, 231-238. doi: 10.1016/j.cropro.2016.07.032
2016
Journal Article
Assessing a novel smartphone application – SnapCard, compared to five imaging systems to quantify droplet deposition on artificial collectors
Ferguson, J. Connor, Chechetto, Rodolfo G., O'Donnell, Chris C., Fritz, Brad K., Hoffmann, W. Clint, Coleman, Chet E., Chauhan, Bhagirath S., Adkins, Steve W., Kruger, Greg R. and Hewitt, Andrew J. (2016). Assessing a novel smartphone application – SnapCard, compared to five imaging systems to quantify droplet deposition on artificial collectors. Computers and Electronics in Agriculture, 128, 193-198. doi: 10.1016/j.compag.2016.08.022
2016
Journal Article
Determining the drift potential of Venturi nozzles compared with standard nozzles across three insecticide spray solutions in a wind tunnel
Ferguson, J. Connor, Chechetto, Rodolfo G., O'Donnell, Chris C., Dorr, Gary J., Moore, John H., Baker, Greg J., Powis, Kevin J. and Hewitt, Andrew J. (2016). Determining the drift potential of Venturi nozzles compared with standard nozzles across three insecticide spray solutions in a wind tunnel. Pest Management Science, 72 (8), 1460-1466. doi: 10.1002/ps.4214
2016
Journal Article
Impacts of polymer/surfactant interactions on spray drift
Wang, Ruobing, Dorr, Gary, Hewitt, Andrew and Cooper-White, Justin (2016). Impacts of polymer/surfactant interactions on spray drift. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 500, 88-97. doi: 10.1016/j.colsurfa.2016.03.056
2016
Journal Article
Assessing the deposition and canopy penetration of nozzles with different spray qualities in an oat (Avena sativa L.) canopy
Ferguson, J. Connor, Chechetto, Rodolfo G., Hewitt, Andrew J., Chauhan, Bhagirath S., Adkins, Steve W., Kruger, Greg R. and O'Donnell, Chris C. (2016). Assessing the deposition and canopy penetration of nozzles with different spray qualities in an oat (Avena sativa L.) canopy. Crop Protection, 81, 14-19. doi: 10.1016/j.cropro.2015.11.013
Funding
Current funding
Past funding
Supervision
Availability
- Dr Andrew Hewitt is:
- Available for supervision
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Supervision history
Completed supervision
-
2016
Doctor Philosophy
Towards the optimisation of Coarse sprays to reduce drift and improve efficacy in Australian cropping systems
Principal Advisor
Other advisors: Dr Chris O'Donnell, Professor Bhagirath Chauhan
-
2016
Doctor Philosophy
Effect of spray liquid physical properties and dynamics of fluids on atomization and spray drift
Associate Advisor
Other advisors: Professor Justin Cooper-White
-
2014
Master Philosophy
Formulation and Evaluation of an Agricultural Spray oil with Film Forming waxes
Associate Advisor
Other advisors: Professor Victor Galea
-
2009
Doctor Philosophy
Environmental Fate of Synthetic Pyrethroids: A Study on the Loss Pathways and Processes of Termiticides in Tropical Climates
Associate Advisor
Media
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