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gvale@healthnet.zw

Glyn Vale, PhD

Research Associate

Research Associate

Glyn is a leading researcher on tsetse behaviour and the use of bait technologies for controlling tsetse, and the author of Tsetse Plan. Visiting Professor at the Natural Resources Institute and previously Chief Glossinologist and Director at the Tsetse and Trypanosomiasis Control Branch of the Department of Veterinary Services, Zimbabwe. Finalist in 2003 World Technology Awards for the Environment.

Recent publications

Hargrove, J.W., & G.A. Vale (2021) Negative density-dependent dispersal in tsetse (Glossina spp): red flag or red herring? Medical and Veterinary Entomology 35(1):30-41 doi: 10.1111/mve.12466


Hargrove, J.W., J. Van Sickle, G.A. Vale, E.R Lucas (2021) Negative density-dependent dispersal in tsetse (Glossina spp): An artefact of inappropriate analysis PLoS Neglected Tropical Diseases 15(3): e0009026 doi: 10.1371/journal.pntd.0009026


Lee, R.H., G.A. Vale, A.M.G. Barreaux, N.C. Ellstrand, & J.W. Hargrove, & S. English (2020) Big Baby, Little Mother: Tsetse Flies Are Exceptions to the Juvenile Small Size Principle. BioEssays :2000049 doi: 10.1002/bies.202000049


Lord, J.L., R. S. Lea, F. K. Allan, M. Byamungu, D.R. Hall, J. Lingley, F. Mramba, E. Paxton, G A. Vale, J. W. Hargrove, L. J. Morrison, S. J. Torr, & H. K. Auty (2020) Assessing the effect of insecticide-treated cattle on tsetse abundance and trypanosome transmission at the wildlife-livestock interface in Serengeti, Tanzania. PLoS neglected tropical diseases 14(8): e0008288. doi: 10.1371/journal.pntd.0008288


Hargrove, J.W., & G.A. Vale (2020) Negative density-dependent dispersal in tsetse (Glossina spp): red flag or red herring? Medical and Veterinary Entomology doi: 10.1111/mve.12466


S. English, A. M.G. Barreaux, M. B. Bonsall, J. W. Hargrove, M.J. Keeling, K. S. Rock, & Glyn A. Vale (2020) Incorporating Vector Ecology and Life History into Disease Transmission Models: Insights from Tsetse (Glossina spp.) Population Biology of Vector-Borne Diseases 175-188 doi: 10.1093/oso/9780198841661.003.0010


Hargrove, J.W., & G.A. Vale (2020) Models for the rates of pupal development, fat consumption and mortality in tsetse (Glossina spp). Bulletin of Entomological Research 110(1) : 44-56 doi: 10.1017/S0007485319000233


Santer, R.D., G.A. Vale, D. Tsikire, & S.J. Torr (2019) Optimising targets for tsetse control: Taking a fly's eye view to improve the colour of synthetic fabrics. PLoS Neglected Tropical Diseases 13(12): e0007905 doi: 10.1371/journal.pntd.0007905


Hargrove, J.W., & G.A. Vale (2019) Models for the rates of pupal development, fat consumption and mortality in tsetse (Glossina spp). Bulletin of Entomological Research :1-13 doi:10.1017/S0007485319000233


Hagrove, J, & G.Vale (2019) Comment on Bioscience Forum article by Bouyer and colleagues (2018). BioScience 69(6): 409-410 doi:10.1093/biosci/biz035


Hargrove, J.W., S English, S.J. Torr, J. Lord, R.L Haines, C. van Schalkwyk, J. Patterson, & G.Vale (2019) Wing length and host location in tsetse (Glossina spp.): implications for control using stationary baits Parasites \& vectors 12(1):24. doi: 10.1186/s13071-018-3274-x.


Lord, J.S., J.W. Hargrove, S.J. Torr, & G.A. Vale (2018) vector populations in Zimbabwe's Zambezi Valley: A mathematical modelling study. PLoS medicine 15(10):e1002675 doi: 10.1371/journal.pmed.1002675


Lord, J.S., S.J. Torr, H. Auty, P.M. Brock, M. Byamungu, J. Hargrove, L.J. Morrison, F. Mramba, G.A. Vale, & M.C. Stanton. (2018) Geostatistical models using remotely-sensed data predict savanna tsetse. decline across the interface between protected and unprotected areas in Serengeti, Tanzania. Journal of Applied Ecology 55 (4):1997-2007. doi: 10.1111/1365- 2664.13091


Njoroge, M.N., I. Tirados, S.W. Lindsay, G.A. Vale, S.J. Torr & U. Fillinger (2017) Exploring the potential of using cattle for malaria vectore surveillance and control: a pilot study in western Kenya. Parasites & Vectors 10:18. doi: 10.1186/s13071-016-1957-8


Tirados I., J. Esterhuizen, V. Kovacic, T. N. Mangwiro, G.A Vale, I.Hastings, P. Solano, M.J. Lehane, & S.J. Torr. (2015) Tsetse Control and Gambian Sleeping Sickness; Implications for Control Strategy. PLOS Neglected Tropical Diseases 9(8):e0003822. doi: 10.1371/journal.pntd.0003822.


Vale, G.A., J.W. Hargrove, M.J. Lehane, P. Solano, & S.J. Torr (2015) Optimal strategies for controlling riverine tsetse flies using targets: a modelling study. PLOS Neglected Tropical Diseases 9(3):e0003615. doi: 10.1371/journal.pntd.0003615


Torr S. J, Vale G. A. (2015) Know your foe: lessons from the analysis of tsetse fly behaviour. Trends In Parasitology 31(3). doi: 10.1016/j.pt.2014.12.010.


Vale G. A, Hargrove J. W, Chamisa A, Grant I. F, Torr S. J. (2015) Pyrethroid treatment of cattle for tsetse control: reducing its impact on dung fauna. Plos Neglected Tropical Diseases 9(2). doi: 10.1371/journal.pntd.0003560.


Glyn A. Vale, John W. Hargrove, Philippe Solano, Fabrice Courtin, Jean-Baptiste Rayaisse, Michael J. Lehane, Johan Esterhuizen, Inaki Tirados, Stephen J. Torr. (2014) Explaining the Host-Finding Behavior of Blood-Sucking Insects: Computerized Simulation of the Effects of Habitat Geometry on Tsetse Fly Movement. PLoS Negl Trop Dis 8(6): e2901. doi:10.1371/journal.pntd.0002901


Vale G. A, Hargrove J. W, Chamisa A, Hall D. R, Mangwiro C, Torr S. J. (2013) Factors affecting the propensity of tsetse flies to enter houses and attack humans inside: increased risk of sleeping sickness in warmer climates. Plos Neglected Tropical Diseases 7(4). doi: 10.1371/journal.pntd.0002193.


Vale G. A, Chamisa A, Mangwiro C, Torr S. J. (2013) A neglected aspect of the epidemiology of sleeping sickness: the propensity of the tsetse fly vector to enter houses. Plos Neglected Tropical Diseases 7(2). doi: 10.1371/journal.pntd.0002086.


Vale G. A, Hall D. R, Chamisa A, Torr S. J. (2012) Towards an early warning system for Rhodesian sleeping sickness in savannah areas: man-like traps for tsetse flies. Plos Neglected Tropical Diseases 6(12). doi: 10.1371/journal.pntd.0001978.


Torr S. J, Chamisa A, Mangwiro T. N, Vale G. A. (2012) Where, when and why do tsetse contact humans? Answers from studies in a national park of Zimbabwe. Plos Neglected Tropical Diseases 6(8). doi: 10.1371/journal.pntd.0001791.


Lindh J. M, Goswami P, Blackburn R. S, Arnold S. E, Vale G. A, Lehane M. J, Torr S. J. (2012) Optimizing the colour and fabric of targets for the control of the tsetse fly Glossina fuscipes fuscipes. Plos Neglected Tropical Diseases 6(5). doi: 10.1371/journal.pntd.0001661.


Hargrove J. W, Ouifki R, Kajunguri D, Vale G. A, Torr S. J. (2012) Modeling the control of trypanosomiasis using trypanocides or insecticide-treated livestock. Plos Neglected Tropical Diseases 6(5). doi: 10.1371/journal.pntd.0001615.


Torr S. J, Chamisa A, Vale G. A, Lehane M. J, Lindh J. M. (2011) Responses of tsetse flies, Glossina morsitans morsitans and Glossina pallidipes, to baits of various size. Medical and Veterinary Entomology 25(4). doi: 10.1111/j.1365-2915.2011.00947.x.


B. Betta, T.F. Randolph, P. Irungu, S.O. Nyamwaro, P. Kitala, J. Gathuma, D. Grace, G. Vale, J. Hargrove, J. McDermott (2010) Field trial of a synthetic tsetse-repellent technology developed for the control of bovine trypanosomosis in Kenya Preventive Veterinary Medicine 97(3–4). doi:10.1016/j.prevetmed.2010.09.001


J. B. Rayaisse, I. Tirados, D. Kaba, S. Y. Dewhirst, J. G. Logan, A. Diarrassouba, E. Salou, M. O. Omolo, P. Solano, M. J. Lehane, J. A. Pickett, G. A. Vale, S. J. Torr, and J. Esterhuizen. (2010) Prospects for the Development of Odour Baits to Control the Tsetse Flies Glossina tachinoides and G. palpalis s.l. Plos Neglected Tropical Diseases 16(4). doi: 10.1371/journal.pntd.0000632.


Jenny M. Lindh, Steve J. Torr, Glyn A. Vale, and Mike J. Lehane. (2009) Improving the Cost-Effectiveness of Artificial Visual Baits for Controlling the Tsetse Fly Glossina fuscipes fuscipes. Plos Neglected Tropical Diseases 3(7). doi: 10.1371/journal.pntd.0000474.


Omolo M. O, Hassanali A, Mpiana S, Esterhuizen J, Lindh J, Lehane M. J, Solano P, Rayaisse J. B, Vale G. A, Torr S. J, Tirados I. (2009) Prospects for developing odour baits to control Glossina fuscipes spp., the major vector of human African trypanosomiasis. Plos Neglected Tropical Diseases 3(5). DOI: 10.1371/journal.pntd.0000435.


Vale G. A. (2009) Prospects for controlling trypanosomosis. Onderstepoort Journal of Veterinary Research 76(1). PMID: 19967927.


Torr S. J, Della Torre A, Calzetta M, Costantini C, Vale G. A (2008) Towards a fuller understanding of mosquito behaviour: use of electrocuting grids to compare the odour-orientated responses of Anopheles arabiensis and An. quadriannulatus in the field Medical And Veterinary Entomology 22: 93-108. DOI: 10.1111/j.1365-2915.2008.00723.x


DSI-NRF Centre of Excellence in Epidemiological Modelling and Analysis