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Lael Walsh

Research Officer – Horticulture

Research Interests

  • Horticulture development and efficiency
  • Sustainable food systems and food system resilience
  • Urban agriculture
  • Environmental impact assessment
  • Crop loss and waste reduction 

Current Projects

Funded by Teagasc, SFI, and UKRI STFC Food Network+:

  • S-Transit: Supporting a sustainable transition away from peat-use in mushroom casing
  • AgSustain: Managing pesticides to enhance agricultural sustainability
  • Leaf No Waste: Evaluating quality and shelf life of silicon enriched fresh salad leaves using alternative plastic packaging solutions
  • Lettuce Decision-Support System: Supporting food loss reduction under uncertain agricultural policy frameworks


  • PhD, Agriculture and Food Science, University College Dublin
  • MSc, Kemmy Business School, University of Limerick
  • MSc, Animal, Plant and Environmental Sciences, University of Witwatersrand
  • Short Course in Life Cycle Assessment, University College London

Professional Membership

International Society for Horticultural Science

Mead, B.R., Christiansen, P., Davies, J.A., Falagán, N., Kourmpetli, S., Liu, L., Walsh, L. and Hardman, C.A., 2021. Is urban growing of fruit and vegetables associated with better diet quality and what mediates this relationship? Evidence from a cross-sectional survey. Appetite, 163, p.105218. doi.org/10.1016/j.appet.2021.105218

Walsh, L.E., Schmidt, O., Williamson, M.S., and Gaffney, M.T. 2020. In-field prevalence of resistant grain aphid Sitobion avenae (Fabricius). Biology and Environment: Proceedings of the Royal Irish Academy. doi.org/ 10.3318/bioe.2020.05

Mc Namara, L., Gauthier, K., Walsh, L., Thébaud, G., Gaffney, M. and Jacquot, E., 2020. Management of yellow dwarf disease in Europe in a post-neonicotinoid agriculture. Pest Management Science. doi.org/10.1002/ps.5835

Walsh, L., Ferrari, E., Foster, S. and Gaffney, M.T., 2020. Evidence of Pyrethroid Tolerance in the Bird Cherry-Oat Aphid Rhopalosiphum padi in Ireland. Outlooks on Pest Management, 31(1), pp.5-9. doi.org/10.1564/v31_feb_02