Rothamsted Research

where knowledge grows


Phil Murray

Principal Research Scientist
Sustainable Agriculture Sciences North Wyke
North Wyke

Research Management

My research interests cover Grassland Science, Soil Entomology, Grassland Pests and Diseases and Nutrient Cycling. I am a Fellow of the Royal Entomological Society.

Recent grants:

BBSRC-LINK (BB/L009889/1) - 'Roots for the Future - A systematic approach to root design [SUREROOT]’ (2014-2019)
EPSRC (EP/K036734/1) Bioenergy value chains: whole systems analysis and optimisation
BBSRC-NCG (BB/j004308) The North Wyke Farm Platform (2012-2017)
BBSRC BB/I024933/1 Soils for Sustainable Agriculture and Environment (IPA – China) (2011 – 2014)
BBSRC BB/H020667/1 Food Security and Sustainable Agriculture MTG (2010 – 2013)
BBSRC BBS/E/C/00005740 Developing a systems-based modelling approach to understand and predict consequences of grassland soil managements for atmosphere and water environments (2008 – 2012)
BBSRC BBS/E/C/00005741 Understanding the role of the soil microbial and invertebrate communities in plant-soil interactions (2008 – 2012)
BBSRC (BB/C504919/1) The link between soil microbial biomass phosphorus and movement of phosphorus to watercourses (2005 – 2008)
BBSRC (45/D14536) Sustainability of grass/clover systems as affected by the dynamics of the pest Sitona in response to above and below ground herbivory. (2001 – 2005)
NERC (NER/T/00160) Diversity and functional role of predatory beetles and their prey in the Sourhope ecosystem. (2001 – 2003)
NERC (GST2113) Biodiversity of invertebrate root feeders and their impact on soil microbial communities. (1998 – 2002)

Teaching: Module Coordinator on the MSc in Sustainable Agriculture and Food Security – Exeter University

PhD Supervision:

Stuart Norris -  The effect of strip cropping maize on invertebrate biodiversity (Rod Blackshaw, University of Plymouth, 2012 - )
Katy Orford -  Engineering biodiversity – restoration of pollinators in pastoral habitats (Jane Memmot, Bristol University)
Sabine Peukert -  Impacts of farm-scale management on multiple ecosystem services in intensively managed grasslands (Richard Brazier, Exeter University)
Emma Saxton -  Bdellovibrio as global food security guards (Liz Sockett, Nottingham University)
Alexa Varah -  Can agroforestry reconcile conflicting demands for productivity, biodiversity conservation and delivery of ecosystem services? (Simon Potts, Reading University)
Katrina Beach – The role of decomposer communities in nutrient dynamics over periods of management change (Richard Evershed, Bristol University)

MRes Supervision:

Kharzan Ahmed - Spatial distribution of soil insects (Rod Blackshaw, University of Plymouth)

MPhil Supervision:

Jennie Williams - The re-establishment of mesofaunal communities in degraded soils (Rod Blackshaw, University of Plymouth)

Review Panels, Advisory Boards and Committees:

NERC Peer Review College
Member of NERC BESS assessment panel, 2012
Member of Council, British Grassland Society
Elected Member of Soil Ecology Society Board
Management Board, South West Doctoral Training Partnership
Management Board, Food Security and Land Use Research Alliance
Management Committee, Peninsula Partnership for the Rural Economy
Member of Committee, Royal Entomological Society


PhD Examiner

Edinburgh University (2013), Cranfield University (2012), Wageningen University (2010), Aberdeen University (2009), University College, Dublin (2009), Royal Holloway, University of London (2006)

+44 (0) 1837 883 500 ext: +44 1837 883545
Rothamsted Research - North Wyke, Okehampton, Devon, EX20 2SB
Past Projects
Principal Investigator
  • Developing a systems-based modelling approach to understand & predict consequences of grassland soil managements for atmosphere & water environments
  • Enhancing biodiversity in productive agricultural landscapes
  • Managing grassland diversity for multiple ecosystem services
  • Maximising carbon retention in soils
  • *Exeter MSc Student Rotation
Project Leader
  • Understanding the role of the soil microbial and invertebrate communities in plant-soil interactions
  • BBSRC Quota Studentship: Elucidating the importance of bacterial & fungal feeding channels in soil food webs under differing land managements
  • High-protein forage legumes under contrasting management and climate conditions
  • High capacity small volume biogas plants for UK biogas production
  • Soils for Sustainable Agriculture and Environment
  • Validation of fertiliser manual (RB209) recommendations for grasslands
  • The North Wyke Farm Platform
  • Widescale Enhancement of Biodiversity: a multi-functional approach (WEB Phase 2)
  • Competitive maize cultivation with reduced environmental impact
  • The effect of strip cropping maize on invertebrate biodiversity
  • Infrastructure for analysis and experimentation on ecosystems - ANAEE
  • Distributed infrastructure for experimentation in ecosystem research: EXPEER
  • Restoration of 'purple moor grass and rush pasture' fens and associated habitats for delivery biodiversity and ecosystem services

Edited Books:

  1. Johnson, SN; Murray, PJ. Root feeders: an ecosystem perspective. CABI Publishing, 266pp, 2008
  2. Jarvis , SC; Murray, PJ; Roker, JA. Optimisation of nutrient cycling and soil quality for sustainable grasslands. Wageningen Academic Publishers. 116pp, 2005

 Book Chapters:

  1. Murray, PJ; Crotty, FV; van Eekeren, N. (2012) Management of grassland systems, Soil, and ecosystem services. In: Wall, DH, et al. (eds) (2012) Soil Ecology and Ecosystem Services, Oxford University Press, Oxford.
  2. Seastedt, TR; Murray, PJ. Root herbivory in grassland systems. In (Johnson, SN & Murray, PJ Eds) Root Feeders: an ecosystem perspective. CABI, 2008
  3. Murray, PJ; Chadwick, DC; Newbold, CJ; Lockyer, DR. Measurement of methane from grazing animals: The tunnel method. In (Makkar, HPS & Vercoe, PE Eds) Measuring methane production from ruminants. Springer, 2007

 Refereed Publications:

  1. Yguel, B., Courty, P-E., Jactel, H., Xu Pan, Butenschoen, O., Murray, P.J., Prinzing, A. (2014) Mycorrhizae support oaks growing in a phylogenetically distant neighbourhood. Soil Biology and Biochemistry 78, 204-212
  2. Wei Liu, Shanshan Jiang, Yunlong Zhang, Shanchao Yue, Christie, P., Murray, P.J., Xiaolin Li,  Junling Zhang. (2014) Spatiotemporal changes in arbuscular mycorrhizal fungal  communities under different nitrogen inputs over a 5-year period in intensive agricultural ecosystems on the North China Plain. FEMS Microbiology Ecology. DOI: 10.1111/1574-6941.12405
  3. Eisler, M.E., Lee, M.R.F., Tarleton, J.F., Martin, G.B., Beddington, J., Dungait, J.A.J., Greathead, H., Jianxin, Lui, Mathew, S., Miller, H., Misselbrook, T.H., Murray, P.J., Vinod, V.K., Van Saun, R., Winter, M. (2014) Steps to sustainable livestock. Nature, 507, 32-34
  4. Creamer, R.E., Schulte, R.P.O., Stone, D., Gal, A., Krogh, P.H., Lo Papa, G., Murray, P.J., Peres, G., Foerster, B., Rutgers, M., Sousa, J.P. & Winding, A. (2014) Measuring basal soil respiration across Europe: Do incubation temperature and incubation period matter? Ecological Indicators 36, 409-418 Jan 2014
  5. Crotty, F.V. Adl, S.M., Blackshaw, R.P., Inger, R. and Murray P.J. (2014)Divergence of feeding channels within the soil food web determined by ecosystem type Ecology and Evolution 4 (1), 1-13
  6. Crotty, F.V. Adl, S.M., Blackshaw, R.P., and Murray P.J. (2013).Measuring soil protist respiration and ingestion rates using stable isotopes Soil Biology & Biochemistry, 57, 919-921
  7. Crotty, F.V. Adl, S.M., Blackshaw, R.P., and Murray P.J. 2012. Using stable isotopes to differentiate trophic feeding channels within soil food webs. Journal of Eukaryotic Microbiology 59, 520-526
  8. Dungait, J.A.J., Cardenas, L.M., Blackwell, M.S.A., Wu, L., Withers, P.J.A., Chadwick, D.R., Bol, R., Murray, P.J., MacDonald, A.J., Whitmore, A.P., Goulding, K.W.T. 2012. Advances in the understanding of nutrient dynamics and management in UK agriculture. Science of the Total Environment
  9. Crotty, F.V. Adl, S.M., Blackshaw, R.P., and Murray P.J. 2012. Protozoan Pulses Unveil Their Pivotal Position Within the Soil Food Web. Microbial Ecology DOI: 10.1007/s00248-011-9956-y.
  10. Crotty, F.V., Adl, S.M., Blackshaw, R.P., Murray, P.J., 2011. Estimating N and C transformations from stable isotope tracer studies in an intact soil food web. Journal of Phycology 47, S7-S7.
  11. Crotty, F.V., Blackshaw, R.P., Murray, P.J., 2011. Differential growth of the fungus Absidia cylindrospora on (13)C/(15)N-labelled media. Rapid Communications in Mass Spectrometry 25, 1479-1484.
  12. Crotty, F.V., Blackshaw, R.P., Murray, P.J., 2011. Tracking the flow of bacterially derived (13)C and (15)N through soil faunal feeding channels. Rapid Communications in Mass Spectrometry 25, 1503-1513.
  13. Currie, A.F., Murray, P.J., Gange, A.C., 2011. Is a specialist root-feeding insect affected by arbuscular mycorrhizal fungi? Applied Soil Ecology 47, 77-83.
  14. Flores, P., Murray, P.J., Hellin, P., Fenoll, J., 2011. Influence of N doses and form on (15)N natural abundance of pepper plants: considerations for using delta(15)N values as indicator of N source. Journal of the Science of Food and Agriculture 91, 2255-2258.
  15. Paterson, E., Sim, A., Osborne, S.M., Murray, P.J., 2011. Long-term exclusion of plant-inputs to soil reduces the functional capacity of microbial communities to mineralise recalcitrant root-derived carbon sources. Soil Biology & Biochemistry 43, 1873-1880.
  16. Blackwell, MSA., Brookes, PC., de la Fuente-Martinez, N., Gordon, H., Murray, PJ., Snars, K., Williams, JK., Bol, R., Haygarth, PM. (2010) Phosphorus solubilization and potential transfer to surface waters from the soil microbial biomass following drying-rewetting and freezing-thawing. Advances in Agronomy, 106: 1-35
  17. Clayton, SJ., Clegg, CD., Bristow, AW., Gregory, PJ., Headon, DM., Murray, PJ. (2010) Movement of newly assimilated C-13 carbon in the grass Lolium perenne and its incorporation into rhizosphere microbial DNA. Rapid Communications in Mass Spectrometry 24: 535-540
  18. Dixon, ER., Blackwell, MSA., Dhanoa, MS., Berryman, Z., de la Fuente-Martinez, N., Jumquera, D., Martinez, A., Murray, PJ., Kemp, HF., Meier-Augustein, W., Duffy, A., Bol, R. (2010) Measurement at the field scale of soil delta C-13 and delta N-15 under improved grassland. Rapid Communications in Mass Spectrometry 24: 511-518
  19. Johnson, SN., Gregory, PJ., McNicol, JW., Oodally, Y., Zhang, XX., Murray, PJ.(2010) Effects of soil conditions and drought on egg hatching and larval survival of the clover root weevil (Sitona lepidus). Applied Soil Ecology 44: 75-79
  20. Pilgrim, ES., MacLeod, CJA., Blackwell, MSA., Bol, R., Hogan, DV., Chadwick, DR., Cardenas, LM., Misselbrook, TH., Haygarth, PM., Brazier, RE., Hobbs, PJ., Hodgson, C., Jarvis, SC., Dungait, JAJ., Murray, PJ., Firbank, LG. (2010) Interactions among agricultural production and other ecosystem services delivered from European grassland systems. Advances in Agronomy, 109: 116-154
  21. Murray, PJ., Gregory, PJ., Granger., Headon, DM., Johnson, SN. (2010) Dispersal of soil-dwelling clover root weevil (Sitona lepidus Gyllenhal, Coleoptera: Curculionidae) larvae in mixed plant communities. Applied Soil Ecology, 46, 422-425
  22. Hirsch PR, Gilliam LM, Sohi SP, Williams JK, Clark, IM and Murray, PJ. (2009) Starving the soil of plant inputs for 50 years reduces abundance but not diversity of soil bacterial communities  Soil Biology & Biochemistry, 41 2021-2024
  23. Blackwell, MSA; Brookes, PC; de la Fuente-Martinez, N; et al. (2009) Effects of soil drying and rate of re-wetting on concentrations and forms of phosphorus in leachate BIOLOGY AND FERTILITY OF SOILS, 45 (6): 635-643 JUL 2009
  24. Wood, TA; Wallace, RJ; Rowe, A; et al. (2009) Encapsulated fumaric acid as a feed ingredient to decrease ruminal methane emissions ANIMAL FEED SCIENCE AND TECHNOLOGY, 152 (1-2): 62-71 JUN 10 2009
  25. Murray, PJ; Clegg, CD; Crotty, FV; et al. (2009) Dissipation of bacterially derived C and N through the meso- and macrofauna of a grassland soil SOIL BIOLOGY & BIOCHEMISTRY, 41 (6): 1146-1150 JUN 2009
  26. Fountain, MT; Thomas, RS; Brown, VK; et al. (2009) Effects of nutrient and insecticide treatments on invertebrate numbers and predation on slugs in an upland grassland: A monoclonal antibody-based approach AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 131 (3-4): 145-153 JUN 2009
  27. Clayton, SJ; Read, DB; Murray, PJ; et al. (2008) Exudation of Alcohol and Aldehyde Sugars from Roots of Defoliated Lolium perenne L. Grown Under Sterile Conditions JOURNAL OF CHEMICAL ECOLOGY, 34 (11): 1411-1421 NOV 2008
  28. Fountain, MT; Brown, VK; Gange, AC; et al. (2008) Multitrophic effects of nutrient addition in upland grassland BULLETIN OF ENTOMOLOGICAL RESEARCH, 98 (3): 283-292 JUN 2008
  29. Fountain, MT; Brown, VK; Gange, AC; et al. (2007) The effects of the insecticide chlorpyrifos on spider and Collembola communities PEDOBIOLOGIA, 51 (2): 147-158 2007
  30. Murray, PJ; Cook, RJ; Currie, AF; et al. (2006) Interactions between fertilizer addition, plants and the soil environment: Implications for soil faunal structure and diversity APPLIED SOIL ECOLOGY, 33: 199-207
  31. Currie, AF; Murray, PJ; Gange, AC (2006) Root herbivory by Tipula paludosa larvae increases colonization of Agrostis capillaris by arbuscular mycorrhizal fungi SOIL BIOLOGY & BIOCHEMISTRY, 38 (7): 1994-1997 JUL 2006
  32. Johnson, SN; Zhang, XX; Crawford, JW; et al. (2006) Effects of carbon dioxide on the searching behaviour of the root-feeding clover weevil Sitona lepidus (Coleoptera : Curculionidae) BULLETIN OF ENTOMOLOGICAL RESEARCH, 96 (4): 361-366 AUG 2006
  33. Johnson, SN; Birch, ANE; Gregory, PJ; et al. (2006) The 'mother knows best' principle: should soil insects be included in the preference-performance debate? ECOLOGICAL ENTOMOLOGY, 31 (4): 395-401 AUG 2006
  34. Zhang, XX; Johnson, SN; Gregory, PJ; et al. (2006) Modelling the movement and survival of the root-feeding clover weevil, Sitona lepidus, in the root-zone of white clover ECOLOGICAL MODELLING, 190 (1-2): 133-146 JAN 10 2006
  35. Johnson, SN; Gregory, PJ; Greenham, JR; et al. (2005) Attractive properties of an isoflavonoid found in white clover root nodules on the clover root weevil JOURNAL OF CHEMICAL ECOLOGY, 31 (9): 2223-2229 SEP 2005
  36. Clayton, SJ; Clegg, CD; Murray, PJ; et al. (2005) Determination of the impact of continuous defoliation of Lolium perenne and Trifolium repens on bacterial and fungal community structure in rhizosphere soil BIOLOGY AND FERTILITY OF SOILS, 41 (2): 109-115 FEB 2005
  37. Treonis, AM; Grayston, SJ; Murray, PJ; et al. (2005) Effects of root feeding, cranefly larvae on soil microorganisms and the composition of rhizosphere solutions collected from grassland plants APPLIED SOIL ECOLOGY, 28 (3): 203-215 MAR 2005
  38. Murray, PJ; Hatch, DJ; Dixon, ER; et al.  (2004) Determination of N source in denitrification studies using stable isotope techniques CONTROLLING NITROGEN FLOWS AND LOSSES: 347-348 2004 12th International Nitrogen Workshop, SEP 21-24, 2003 Exeter, ENGLAND Univ Exeter
  39. Murray, PJ; Dixon, ER; Granger, SJ; et al. (2004) Using a system of undisturbed, in situ soil lysimeters to determine nitrogen transformations in a sub-surface clay interface CONTROLLING NITROGEN FLOWS AND LOSSES: 349-350 2004 12th International Nitrogen Workshop, SEP 21-24, 2003 Exeter, ENGLAND Univ Exeter
  40. Johnson, SN; Gregory, PJ; Murray, PJ; et al. (2004) Host plant recognition by the root feeding clover weevil, Sitona lepidus (Coleoptera : Curculionidae) BULLETIN OF ENTOMOLOGICAL RESEARCH, 94 (5): 433-439 OCT 2004
  41. Murray, P; Ostle, N; Kenny, C; et al. (2004) Effect of defoliation on patterns of carbon exudation from Agrostis capillaris JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE, 167 (4): 487-493 AUG 2004
  42. Dawson, LA; Grayston, SJ; Murray, PJ; et al. (2004) Impact of Tipula paludosa larvae on plant growth and the soil microbial community APPLIED SOIL ECOLOGY, 25 (1): 51-61 JAN 2004
  43. Dawson, LA; Grayston, SJ; Murray, PJ; et al. (2003) Influence of pasture management (nitrogen and lime addition and insecticide treatment) on soil organisms and pasture root system dynamics in the field PLANT AND SOIL, 255 (1): 121-130 AUG 2003
  44. Murray, PJ; Dawson, LA; Grayston, SJ (2002) Influence of root herbivory on growth response and carbon assimilation by white clover plants APPLIED SOIL ECOLOGY, 20 (2): 97-105 MAY 2002
  45. Dawson, LA; Grayston, SJ; Murray, PJ; et al. (2002) Root feeding behaviour of Tipula paludosa (Meig.) (Diptera : Tipulidae) on Loliumn perenne (L.) and Trifolium repens (L.) SOIL BIOLOGY & BIOCHEMISTRY, 34 (5): 609-615 MAY 2002
  46. Cook, R; Dawson, LA; Gange, AC; et al. (2002) Soil biodiversity, root herbivory and carbon and nitrogen cycling in grassland soils PROCEEDINGS OF THE XIX INTERNATIONAL GRASSLAND CONGRESS - GRASSLAND ECOSYSTEMS: AN OUTLOOK INTO THE 21ST CENTURY : 902-902 2001 19th International Grassland Congress, FEB 11-21, 2001 SAO PEDRO, BRAZIL
  47. Grayston, SJ; Dawson, LA; Treonis, AM; et al. (2001) Impact of root herbivory by insect larvae on soil microbial communities EUROPEAN JOURNAL OF SOIL BIOLOGY, 37 (4): 277-280 OCT-DEC 2001 13th International Colloquium on Soil Zoology (ICSZ), AUG 14-18, 2000 CESKE BUDEJOVICE, CZECH REPUBLIC
  48. Murray, PJ; Gill, E; Balsdon, SL; et al. (2001)A comparison of methane emissions from sheep grazing pastures with differing management intensities NUTRIENT CYCLING IN AGROECOSYSTEMS, 60 (1-3): 93-97 2001
  49. Paynel, F; Murray, PJ; Cliquet, JB (2001)Root exudates: a pathway for short-term N transfer from clover and ryegrass PLANT AND SOIL, 229 (2): 235-243 FEB 2001
  50. Murray, PJ; Jorgensen, M; Gill, E  (2000) Effect of temperature on growth and morphology of two varieties of white clover (Trifolium repens L.) and their impact on soil microbial activity ANNALS OF APPLIED BIOLOGY, 137 (3): 305-309 DEC 2000
  51. Murray, PJ; Moss, A; Lockyer, DR; et al. (1999)A comparison of systems for measuring methane emissions from sheep JOURNAL OF AGRICULTURAL SCIENCE, 133: 439-444 Part 4 DEC 1999
  52. Murray, PJ; Clements, RO  (1998) Transfer of nitrogen between clover and wheat: Effect of root herbivory EUROPEAN JOURNAL OF SOIL BIOLOGY, 34 (1): 25-30 JAN-MAR 1998
  53. Cliquet, JB; Murray, PJ; Boucaud, J (1997) Effect of the arbuscular mycorrhizal fungus Glomus fasciculatum on the uptake of amino nitrogen by Lolium perenne NEW PHYTOLOGIST, 137 (2): 345-349 OCT 1997
  54. Murray, PJ; Bristow, AW (1997)A simple technique for recording root and shoot growth in plants JOURNAL OF BIOLOGICAL EDUCATION, 31 (3): 171-174 FAL 1997
  55. Murray, PJ; Hopkins, A; Johnson, RH; et al. (1996) Feeding preferences of the grey field slug (Deroceras reticulatum) for dicotyledenous species of permanent grassland ANNALS OF APPLIED BIOLOGY, 128: 74-75 Suppl. S SEP 1996
  56. Murray, PJ; Hatch, DJ; Cliquet, JB (1996) Impact of insect root herbivory on the growth and nitrogen and carbon contents of white clover (Trifolium repens) seedlings CANADIAN JOURNAL OF BOTANY-REVUE CANADIENNE DE BOTANIQUE, 74 (10): 1591-1595 OCT 1996
  57. Murray, PJ (1996) Evaluation of a range of varieties of white clover for resistance to feeding by weevils of the genus Sitona PLANT VARIETIES AND SEEDS, 9 (1): 9-14 APR 1996
  58. Murray, PJ; Clements, RO (1995)Distribution and abundance of three species of Sitona (Coleoptera: Curculionidae) in grassland in England ANNALS OF APPLIED BIOLOGY, 127 (2): 229-237 OCT 1995
  59. HOPKINS, A; MURRAY, PJ; BOWLING, PJ; et al. (1995)Productivity and nitrogen uptake of aging and newly sown swards of perennial ryegrass (Lolium perenne L) at different sites and with different nitrogen-fertilizer treatments EUROPEAN JOURNAL OF AGRONOMY, 4 (1): 65-75 1995
  60. HATCH, DJ; MURRAY, PJ (1994) transfer of nitrogen from damaged roots of white clover (Trifolium repens L) to closely associated roots of intact perennial ryegrass (Lolium perenne L) PLANT AND SOIL, 166 (2): 181-185 OCT 1994
  61. MURRAY, PJ; HATCH, DJ (1994) sitona weevils (Coleoptera, Curculionidae) as agents for rapid transfer of nitrogen from white clover (Trifolium repens l) to perennial ryegrass (Lolium perenne L) ANNALS OF APPLIED BIOLOGY, 125 (1): 29-33 AUG 1994
  62. MURRAY, PJ; CLEMENTS, RO (1994) investigations of the host feeding preferences of sitona weevils found commonly on white clover (Trifolium repens) in the UK ENTOMOLOGIA EXPERIMENTALIS ET APPLICATA, 71 (1): 73-79 APR 1994
  63. CLEMENTS, RO; SHELDRICK, RD; MURRAY, PJ; et al. (1993)Efficacy of imidacloprid against frit fly (Oscinella spp) in newly-sown ryegrass (Lolium spp) ANNALS OF APPLIED BIOLOGY, 122: 14-15 Suppl. S APR 1993
  64. MURRAY, PJ; CLEMENTS, RO (1993) feeding preferences among 11 cultivars of white clover (Trifolium repens) by adults of 2 species of sitona weevil (Coleoptera, Curculionidae) ANNALS OF APPLIED BIOLOGY, 122: 134-135 Suppl. S APR 1993
  65. MURRAY, PJ; CLEMENTS, RO (1993) studies on the feeding of Sitona lineatus L (Coleoptera, Curculionidae) on white clover (Trifolium repens L) seedlings ANNALS OF APPLIED BIOLOGY, 121 (2): 233-238 OCT 1992
  66. MURRAY, PJ; CLEMENTS, RO (1992) A technique for assessing damage to roots of white clover caused by root feeding insects ANNALS OF APPLIED BIOLOGY, 121 (3): 715-719 DEC 1992
  67. CLEMENTS, RO; BENTLEY, BR; MURRAY, PJ (1992) Differential reaction of newly-sown ryegrass (Lolium spp) cultivars to insecticide treatments ANNALS OF APPLIED BIOLOGY, 120: 78-79 Suppl. S MAY 1992
  68. CLEMENTS, RO; MURRAY, PJ; TYAS, CJ (1992) The short-term effects on wild goose behaviour of chlorpyrifos application to permanent pasture ANNALS OF APPLIED BIOLOGY, 120 (1): 17-23 FEB 1992
  69. CLEMENTS, RO; BENTLEY, BR; MURRAY, PJ; et al. (1991) Improvement of persistence and yield of italian ryegrass (Lolium multiflorum) through pesticide use ANNALS OF APPLIED BIOLOGY, 119 (3): 513-519 DEC 1991
  70. CLEMENTS, RO; MURRAY, PJ; STURDY, RG (1991) The impact of 20 years absence of earthworms and 3 levels of N-fertilizer on a grassland soil environment AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 36 (1-2): 75-85 JUN 1991
  71. CLEMENTS, RO; MURRAY, PJ (1991) Comparison between defined-area slug traps and other methods of trapping slugs in cereal fields CROP PROTECTION, 10 (2): 152-154 APR 1991
  72. CLEMENTS, RO; MURRAY, PJ; BENTLEY, BR; et al. (1990) The impact of pests and diseases on the herbage yield of permanent grassland at 8 sites in england and wales ANNALS OF APPLIED BIOLOGY, 117 (2): 349-357 OCT 1990
  73. CLEMENTS, RO; MURRAY, PJ; BENTLEY, BR; et al. (1990) Herbage yield and botanical composition over 20 years of a predominantly ryegrass sward treated frequently with phorate pesticide and 3 rates of nitrogen-fertilizer JOURNAL OF AGRICULTURAL SCIENCE, 115: 23-27 Part 1 AUG 1990
  74. WIECH, K; FOULKES, MJ; MURRAY, PJ; et al. (1990) Evaluation of alpha-cypermethrin and chlorpyrifos against white clover seed weevil (Apion flavipes) ANNALS OF APPLIED BIOLOGY, 116: 8-9 Suppl. S APR 1990
  75. HOPKINS, A; GILBEY, J; DIBB, C; et al. (1990) Response of permanent and reseeded grassland to fertilizer nitrogen .1. Herbage production and herbage quality GRASS AND FORAGE SCIENCE, 45 (1): 43-55 MAR 1990
  77. HOPKINS, A; MURRAY, PJ; PATEFIELD, WM (1989) a comparison of the herbage productivity of Bromus wildenowii cv Grasslands Matua with 4 cultivars of lolium-perenne when grown in association with Trifolium repens GRASS AND FORAGE SCIENCE, 44 (1): 31-39 MAR 1989
  78. HOPKINS, A; WAINWRIGHT, J; MURRAY, PJ; et al. (1988) 1986 survey of upland grassland in England and Wales - changes in age structure and botanical composition since 1970-72 in relation to grassland management and physical features GRASS AND FORAGE SCIENCE, 43 (2): 185-198 JUN 1988
  79. HOPKINS, A; DIBB, C; BOWLING, PJ; et al. (1985) Production from permanent and reseeded grassland in england and wales - results from a multi-site cutting trial GRASS AND FORAGE SCIENCE, 40 (2): 245-246 1985




PhD in Biology of Sitona weevils in forage legumes (Bristol University)


BSc in Applied Biology (Liverpool Polytechnic)

Measures of esteem


  • Review Panel: Review Panel: National Council of Research and Technology (E.S.E.T.) of Greece (ARISTEIA)
  • External Examiner: PhD, University of Edinburgh


  • Council Member and Trustee: British Grassland Society
  • NERC Peer Review College
  • External Examiner: Cranfield University
  • Visiting Professor: Department of Biomedical and Biological Sciences, University of Plymouth


  • Katy Orford: Engineering biodiversity â?? restoration of pollinators in pastoral habitats. University of Bristol


  • Are long-term changes in soil organic matter reflected in the soil communities: Wageningen University seminar
  • Wageningen University
  • Sabine Peukert: Impacts of farm-scale management on multiple ecosystem services in intensively managed grasslands, Exeter University


  • Are long-term changes in soil organic matter refle: Soil Ecology Society Biennial Meeting, Vermont, USA
  • External Examiner: Aberdeen University
  • External Examiner; University College Dublin
  • Jennie Williams: The re-establishment of mesofaunal communities in degraded soils. University of Plymouth
  • Are long-term changes in soil organic matter refle: UK-Brazil workshop on soil qualities and soil processes, Rio de Janeiro, March 2009
  • Are long-term changes in soil organic matter refle: Invited seminar, SCRI, October 2009
  • Understanding soil food webs: China-UK workshop on soils for sustainable agriculture and environment, Beijing, October 2009
  • China-UK workshop on soils for sustainable agricul: Invited session Chair
  • Member, Steering Commitee: MSc Food Security & Sustainable Agriculture, Exeter University


  • Soil biota in grassland, its ecosystem services an: van Eekeren, Murray & Smeding, European Grassland Federation, Sept 2007. Permanent and Temporary Grassland; Plant, Environment and Economy
  • Felicity Crotty: Relative importance of bacterial and fungal feeding channels in soil food webs. University of Plymouth


  • External Examiner: Royal Holloway University of Lo
  • Committee Member: Royal Entomological Society


  • Consultancy to Khartoum State Government, Sudan: Greening of Khartoum


  • Sitona weevils; distribution and host plant effect: Invited Lecture - The Linnean Society of London


  • Amanda Currie: Interactions between root-feeding insects and arbuscular mycorrhizal fungi. Royal Holloway, University of London


  • Stephen Clayton: Carbon Reallocation in Grasslands Under Stress. Unversity of Reading
  • Council Member: British Grassland Society


  • Consultancy to AgResearch NZ (Sitona weevils)


  • Fellow of the Royal Entomological Society
  • Member of the Institute of Biology