Joanne Holloway

Research interests

  • Stored grain insects
  • Insecticide resistance
  • Insect control and ecology
  • IPM in field crops
  • Beneficial invertebrates
  • Biological control


Joanne Holloway is the research entomologist for field crops in southern NSW. She is also the leader of the Stored Grain Research Unit at Wagga Wagga.

After completion of her PhD, studying the ecophysiology of sugar gliders, Joanne was employed as a Professional Officer at the University of NSW. Research during this time involved investigating adaptations of a wide range of native animals, from red kangaroos to Christmas Island crabs, to the environment.

Joanne joined NSW Agriculture (now NSW DPI) at Wagga Wagga Agricultural Institute in 2002 as a Research Entomologist. Since then her research has focussed on the identification and management strategies to avoid chemical resistance in stored grain insects, and integrated pest management of insects in broadacre field crops.


  • B.Sc. (Hons.) – University of New England 1992
  • PhD Zoology – University of New England 1999

Current projects

  • National program for monitoring resistance to phosphine in insect pests of stored grain
  • New knowledge to improve the timing of pest management decisions in grain crops
  • Metarhizium as a potential seed treatment to control insect pests of vegetables and crops

Recent publications

Holloway, J. C., Falk, M. G., Emery, R. N., Collins, P. J. & Nayak, M. K. (2016) Resistance to phosphine in Sitophilus oryzae in Australia: A national analysis of trends and frequencies over time and geographical spread. Journal of Stored Products Research 69: 129-137.

Toon, A., Daglish, G. J., Ridley, A. W., Emery, R. N., Holloway, J. C. & Walter, G. H. (2016) Random mating between two widely divergent mitochondrial lineages of Cryptolestes ferrugineus: species limits in a phosphine resistance in a stored product pest. Journal of Economic Entomology doi: 10.1093/jee/tow178 (Published online 11 Aug 2016)

Dotaona, R., Wilson, B. A. L., Stevens, M. M., Holloway, J. & Ash, G. J. (2015) Screening of tropical isolates of Metarhizium anisopliae (Hypocreales: Clavicipitaceae) for virulence to the sweet potato weevil, Cylas formicarius (Coleoptera: Brentidae). International Journal of Tropical Insect Science 35: 153-163.

MacFadyen, S., Hardie, D. C., Fagan, L., Stefanova, K., Perry, K. D., DeGraaf, H. E., Holloway, J. C., Spafford, H. & Umina, P. A. (2014) Reducing insecticide use in broad-acre grains production: An Australian study. PLOS One 9: e89119. doi:10.1371/journal.pone.0089119.

Nayak, M. K., Holloway, J. C., Emery, R. N., Pavic, H., Bartlet, J. & Collins, P. J. (2013) Strong resistance to phosphine in the rusty grain beetle Cryptolestes ferrugineus (Stephens) (Coleoptera: Laemophloeidae): its characterisation, a rapid assay for diagnosis and its distribution in Australia. Pest Management Science 69: 48-53. doi: 10.1002/ps.3360.

Daglish, G. J., Holloway, J. C. & Nayak, M. K. (2013) Implications of methoprene resistance for managing Rhyzopertha dominica (F.) in stored grain. Journal of Stored Products Research 54: 8-12. http://dx.doi.org/10.1016/j.jspr.2013.03.006.

Emery, R. N., Nayak, M. K. & Holloway, J. C. (2011) Lessons learned from phosphine resistance monitoring in Australia. Stewart Postharvest Review 2011, doi: 10.2212/spr.2011.3.6.

Holloway JC, Furlong MJ and Bowden PI (2008) Management of beneficial invertebrates and their potential role in integrated pest management for Australian grain systems. Australian Journal of Experimental Agriculture 48: 1531-1542.

Nayak M, Holloway J, Head M, Reid R, Pavic H and Collins P (2008) The threat of insect resistance to phosphine in bulk grain storages in Australia. IN: Section 5: Urban, Stored Product and Post-Harvest Entomology; Symposium 5.01: Ecology and Management of Stored-Product Insects in Large-Scale Facilities. XXIII International Congress of Entomology, 6-12 July 2008. Durban, South Africa

Professional associations and activities

  • Member, National Working Party on Grain Protection
  • Member, Australian Entomological Society
  • Member, EH Graham Centre for Agricultural Innovation
  • Member, National Invertebrate Pest Initiative (NIPI)
  • Member, Australian Bio-Protection Initiative

Fields of research

  • 070308 Crop and Pasture Protection (Pests, Diseases, and Weeds)
  • 070307 Crop and Pasture Post Harvest Technologies (incl. Transportation and Storage)
  • 050205 Environmental Management

Australian and New Zealand Standard Research Classification (ANZSRC)

Keyword/phrase list of research interests

  • Stored grain entomology
  • Integrated pest management
  • Beneficial invertebrates
  • Biological control
  • Ecology
  • Chemical resistance in stored grain insects
  • Postharvest storage

Contact details

Email: joanne.holloway@dpi.nsw.gov.au