Iridoviruses Biology and ecology of baculoviruses Virus insecticides Spinosad Mosquitoes, blackflies, and ticks Predators, parasitoids, pathogens Others Students


Trevor Williams, página personal en español


Baculovirus-based insecticides - the Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV).

Research topics

  • Biological control of insect pests and vectors of medical importance.

  • Ecology of insect pathogenic viruses, especially baculoviruses and iridoviruses.

  • The use of insect viruses as biological insecticides and the biorational insecticide spinosad.

  • Interactions between biopesticides and other insect natural enemies.

  • The biology and ecology of insect natural enemies.


Trevor Williams homepage: biological insecticides, ecology of insect pathogenic viruses....

Bioassay of an invertebrate iridovirus (iridescent virus) in Galleria mellonella larvae.

Other activities

  • Member of the study group on Iridoviridae for the International Committee on Taxonomy of Viruses (ICTV).

  • Sistema Nacional de Investigadores, Mexico (level III).

  • Fellow of the Royal Entomological Society, London (1990-2020).

  • Member of the Society for Invertebrate Pathology.



 Contact information:

October 2023


Presa-Parra, E., Navarro-de-la-Fuente, L., Williams, T. & Lasa, R. (2023) Can low concentration flufenoxuron treatment increase the pathogenicity or production of nucleopolyhedrovirus occlusion bodies in Spodoptera exigua (Hübner) or Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)? Acta Zoológica Mexicana 39, e3912627.


PDF reprint


May 2024


Molina-Ruiz, C.S., Zamora-Briseño, J.A., Simón, O., Lasa, R., & Williams, T. (2024) A qPCR assay for the quantification of selected genotypic variants of Spodoptera frugiperda multiple nucleopolyhedrovirus (Baculoviridae). Viruses 16, 881.


PDF reprint


Instituto de Ecología AC (INECOL)

Carretera Antigua a Coatepec 351

Xalapa 91073

Estado de Veracruz


Tel: (+52) 228 842 18 00 ext. 4105




INECOL website and INECOL magazine
(in Spanish)



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