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Faculty of Health and Life Sciences

Dr Nasser Trissi

Dr Nasser Trissi

Plant Growth Facilities Manager

 01392 72 (2714)

 Geoffrey Pope M01a1/ Mezzanine


Geoffrey Pope Building, University of Exeter , Stocker Road, Exeter, EX4 4QD, UK


My research interests are in the biological control of insect pests and the ecology of insect-killing fungi, especially Beauveria bassiana. Develop integrated pest management tactic to control crops insects, conserve and enhance natural enemies of insects. I am particularly interested in how endophytic entomopathogenic fungi affect the insect populations and the implications this has for sustainable pest control and as a regulating factor in populations of beneficial insects.  Applying pathogens may affect the biodiversity so my works also focusses on the effects of pathogens on non-target insects to improve our understanding of the ecological mechanisms that support the role that microbial pathogens play in insect population dynamics.


2010 PhD. Agricultural Engineering: Plant Protection (University of Aleppo)

2005 M.Sc. Agricultural Engineering/ Biological control of Insect (University of Aleppo)

1996 Diploma of Higher Studies in Plant Protection (University of Aleppo)


2022- present: Plant Growth Facilities Manager- The University of Exeter.

2018 - 2020: Visiting post-doctoral fellow - College of Life & Environmental Sciences, University of Exeter.

2012- 2018: Associate Professor – University of Aleppo.

2010-2018: Consultant (part-time) - The International Centre of Agricultural Research in the Dry Areas (ICARDA).

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Research interests

  1. Trissi N, Troczka BJ, Ozsanlav-Harris L, Singh KS, Mallott M, Aishwarya V, O'Reilly A, Bass C, Wilding CS (2022). Differential regulation of the Tor gene homolog drives the red/green pigmentation phenotype in the aphid Myzuspersicae. Insect Biochem Mol Biol153.
  2. Singh KS, Troczka BJ, Duarte A, Balabanidou V, Trissi N, Carabajal Paladino LZ, Nguyen P, Zimmer CT, Papapostolou KM, Randall E, et al (2020). The genetic architecture of a host shift: an adaptive walk protected an aphid and its endosymbiont from plant chemical defenses. Science Advances6(19).
  3. Trissi AN, El-Bouhssini  M, Skinner  M, Parker  BL. (2019). Effect of sublethal dosages of Beauveria bassiana on feeding and fecundity of Sunn Pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae). EPPO, DOI: 10.1111/epp.12603.
  4. El-Bouhssini M and Trissi AN. (2018). Integrated Pest Management: Economic Threshold and Economic Injury Level. In El Bouhssini, M. and J. R. Faleiro. Date Palm Pests and Diseases Integrated Management Guide. Beirut, Lebanon: International Center for Agricultural Research in the Dry Areas (ICARDA), 232p. ISBN13: 978-92-9127-505-2.
  5. Trissi AN, El Bouhsini M, Alsalti MN, von Korff M, Hamwieh A, Skinner M, Parker BL, Baum M (2013). Genetic diversity among summer and winter Beauveria bassiana populations as revealed by AFLP analyses. Journal of Asia-Pacific Entomology. 16: 269–273.
  6. Trissi AN, El Bouhssini M, Al Salti MN, Abdulhai M, Skinner M, Parker PL (2012). Virulence of Beauveria bassiana against Sunn pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae) at different time periods of application. Journal of Entomology and Nematology, 4(5): 49-53.
  7. El Bouhssini M, Lhaloui S, Amri A, Trissi AN. (2011). Implications of climate change on insects: the case of cereal and legume crops in North Africa, West and Central Asia. in Food security and climate change in dry areas. Solh, M. and Saxena, M.C. (eds): proceedings of an International Conference, 1-4 February 2010, Amman, Jordan. PO Box 5466, Aleppo, Syria: International Center for Agricultural Research in the Dry Areas (ICARDA). 369 pp.
  8. Abdulhai M, El-Bouhssini M, Jamal M, Trissi AN, Sayyadi Z, Skinner M, Parker BL (2010). Beauveria bassiana Characterization and Efficacy vs. Sunn Pest, Eurygaster integriceps Puton (Hemiptera: Scutelleridae), Pakistani Journal of Biological Sciences, ISSN 1028-8880. 
  9. Trissi A, El-Bouhssini M, Ibrahem J, Abdulhai M, Parker BL, Reid W, El-Haramein FJ (2006). Effect of egg parasitoid density on the population suppression of Sunn Pest, Eurygaster inegriceps (Hemiptera: Scutelleridae), and its resulting impact on bread wheat grain quality. Journal of Pest Science, 79: 83-87.

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Office Hours:

09:00- 17:00

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