Skip to main content
Contact Us

Gerard provides management and strategic leadership to the Centre for Forest Protection which comprises 5 science groups and more than 80 staff.

Gerard role is to ensure that the Centre delivers excellent science to contribute to the fulfilment of Forest Research’s vision. The Centre undertakes research to deliver scientific evidence, data and services in support of sustainable forestry.

Gerard has previously held management and leadership roles in scientific and regulatory organisations in the UK and New Zealand, including Fera, the Royal Horticultural Society, and the Ministry for Primary Industries. He also worked for the IPPC Secretariat coordinating the development of international standards.


  • Senior Editor, New Disease Reports
  • Member of the board of the British Society for Plant Pathology
Head of Centre for Forest Protection
Tree health

Alice Holt

Alice Holt Lodge




Peer reviewed journal articles

Beal, L., Waghorn, I., Perry, J., Clover, G. and Cromey, M. (2020). Susceptibility of garden plants to Phytophthora root rot. Plant Disease (in press).

Brace, L.C., Gange, A.C. and Clover, G.R.G. (2020). What are the predominant pests and diseases afflicting gardens in the UK? Urban Forestry & Urban Greening (in press).

Vazquez-Iglesias, I., Ochoa-Corona, F.M., Tang J., Robinson, R., Clover, G.R.G, Fox, A. and Boonham, N. (2020). Facing Rose rosette virus: a risk to European rose cultivation. Plant Pathology 69: 1603-1617.

Drakulic, J., Gorton, C., Perez-Sierra, A., Clover, G. and Beal, L. (2017). Associations between Armillaria species and host plants in UK gardens. Plant Disease 101: 1903–1909.

Harper, S.J., Ward, L.I. and Clover, G.R.G. (2010). Development of a LAMP and real-time PCR methods for the rapid detection of Xylella fastidiosa for quarantine and field applications. Phytopathology 100: 1282-1288.

Clover, G.R.G., Hammons, S. and Unger, J.-G. (2010). International diagnostic protocols for regulated plant pests. Bulletin OEPP / EPPO Bulletin 40: 24-29.

Untiveros, M., Perez-Egusquiza, Z. and Clover, G.R.G. (2010). Generic PCR assays for the detection of members of the Ilarvirus genus and Bromoviridae family. Journal of Virological Methods 165: 97-104.

Liefting, L.W., Weir, B.S., Pennycook, S.R. and Clover, G.R.G. (2009). ‘Candidatus Liberibacter solanacearum’, associated with plants in the family Solanaceae. International Journal of Systematic and Evolutionary Microbiology 59: 2274-2276.

Liefting, L.W., Sutherland, P.W., Ward, L.I., Paice, K.L., Weir, B.S. and Clover, G.R.G. (2009). A new ‘Candidatus Liberibacter’ species associated with diseases of solanaceous crops. Plant Disease 93: 208-214.

Alexander, B.J.R., Flynn, A.R., Gibbons, A.M., Clover, G.R.G. and Herrera, V.E. (2008). New Zealand perspective on ISO 17025 accreditation of a plant diagnostic laboratory. Bulletin OEPP / EPPO Bulletin 38: 172-177.