All Stories

  1. Phorid fly parasitism rates vary between individual colonies of the leaf‐cutting ant Atta laevigata

    Article • Agricultural and Forest Entomology, May 2023, Wiley

    Dr Richard I Samuels

  2. Production of Escovopsis weberi (Ascomycota: Hypocreales) Mycelial Pellets and Their Effects on Leaf-Cutting Ant Fungal Gardens

    Article • Pathogens, February 2023, MDPI AG

    Dr Richard I Samuels

  3. Lethal and sublethal effects of insecticides used in the management of Plutella xylostella (Lepidoptera: Plutellidae) on the predator Cycloneda sanguinea L. (Coleoptera: Coccinellidae)

    Article • Pest Management Science, July 2022, Wiley

    Dr Richard I Samuels

  4. Metarhizium anisopliae blastospores are highly virulent to adult Aedes aegypti, an important arbovirus vector

    Article • Parasites & Vectors, October 2021, Springer Science + Business Media

    Dr Richard I Samuels

  5. Differential parasitism by four species of phorid flies when attacking three worker castes of the leaf-cutting ant Atta laevigata (Smith, 1858)

    Article • PLoS ONE, May 2021, PLOS

    Dr Richard I Samuels

  6. Biological performance and oviposition preference of tomato pinworm Tuta absoluta when offered a range of Solanaceous host plants

    Article • Scientific Reports, January 2021, Springer Science + Business Media

    Dr Richard I Samuels

  7. Correction to: Endophytic colonization of tomato plants by the entomopathogenic fungus Beauveria bassiana for controlling the South American tomato pinworm, Tuta absoluta

    Article • CABI Agriculture and Bioscience, July 2020, Springer Science + Business Media

    Dr Richard I Samuels

  8. Endophytic colonization of tomato plants by the entomopathogenic fungus Beauveria bassiana for controlling the South American tomato pinworm, Tuta absoluta

    Article • CABI Agriculture and Bioscience, June 2020, Springer Science + Business Media

    Dr Richard I Samuels

  9. Aedes aegypti (Diptera: Culicidae) Immune Responses with Different Feeding Regimes Following Infection by the Entomopathogenic Fungus Metarhizium anisopliae

    Article • Insects, February 2020, MDPI AG

    Dr Richard I Samuels

  10. Medial prefrontal cortex ERK and conditioning: Evidence for the association of increased medial prefrontal cortex ERK with the presence/absence of apomorphine conditioned behavior using a unique post-trial conditioning/extinction protocol

    Article • Behavioural Brain Research, June 2019, Elsevier

    Dr Richard I Samuels

  11. Highly specific host-pathogen interactions influence Metarhizium brunneum blastospore virulence against Culex quinquefasciatus larvae

    Article • Virulence, September 2018, Taylor & Francis

    Dr Alex M Lord, Dr Richard I Samuels, Prof. Fabio Lopes Olivares

  12. A new method of deploying entomopathogenic fungi to control adultAedes aegyptimosquitoes

    Article • Journal of Applied Entomology, May 2017, Wiley

    Dr Richard I Samuels

  13. AVALIAÇÃO DA VIRULENCIA DE BLASTOSPOROS DE Metarhizium anisopliae NO CONTROLE DE LARVAS DE CAMPO DO MOSQUITO Aedes aegypti

    Article • Revista Univap, November 2016, UNIVAP Universidade de Vale do Paraiba

    Dr Richard I Samuels

  14. SUBSTRATO DE CRESCIMENTO DO FUNGO Metarhizium anisopliae INFLUENCIA NA VIRULÊNCIA CONTRA LARVAS DE Aedes aegypti

    Article • Revista Univap, November 2016, UNIVAP Universidade de Vale do Paraiba

    Dr Richard I Samuels

  15. Metarhizium brunneum Blastospore Pathogenesis in Aedes aegypti Larvae: Attack on Several Fronts Accelerates Mortality

    Article • PLoS Pathogens, July 2016, PLOS

    Dr Richard I Samuels

  16. Entomopathogenic organisms: conceptual advances and real-world applications for mosquito biological control

    Article • Open Access Insect Physiology, April 2016, Dove Medical Press

    Dr Richard I Samuels

  17. Larvicidal Potential of the Halogenated Sesquiterpene (+)-Obtusol, Isolated from the Alga Laurencia dendroidea J. Agardh (Ceramiales: Rhodomelaceae), against the Dengue Vector Mosquito Aedes aegypti (Linnaeus) (Diptera: Culicidae)

    Article • Marine Drugs, January 2016, MDPI AG

    Dr Richard I Samuels

  18. Reciprocal activation/inactivation of ERK in the amygdala and frontal cortex is correlated with the degree of novelty of an open-field environment

    Article • Psychopharmacology, December 2015, Springer Science + Business Media

    Dr Richard I Samuels

  19. Neem oil increases the efficiency of the entomopathogenic fungus Metarhizium anisopliae for the control of Aedes aegypti (Diptera: Culicidae) larvae

    Article • Parasites & Vectors, December 2015, Springer Science + Business Media

    Dr Richard I Samuels

  20. Diet-derived vicilins detected in eggs laid by a double-mated female Callosobruchus maculatus originate from nuptial gifts donated by both male partners

    Article • Journal of Stored Products Research, July 2015, Elsevier

    Dr Richard I Samuels

  21. Diet type modifies ingestion rates and trophallactic exchanges in leaf-cutting ants

    Article • Entomologia Experimentalis et Applicata, November 2014, Wiley

    Dr Richard I Samuels

  22. Spatial distribution of digestive proteinases in the midgut of the Pacific white shrimp ( Litopenaeus vannamei ) indicates the existence of endo-ectoperitrophic circulation in Crustacea

    Article • Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology, June 2014, Elsevier

    Mr. Roberto Derner, Dr Richard I Samuels

  23. Monitoring persistence of the entomopathogenic fungus Metarhizium anisopliae under simulated field conditions with the aim of controlling adult Aedes aegypti (Diptera: Culicidae)

    Article • Parasites & Vectors, April 2014, Springer Science + Business Media

    Dr Richard I Samuels

  24. Increase in medial frontal cortex ERK activation following the induction of apomorphine sensitization

    Article • Pharmacology Biochemistry and Behavior, March 2014, Elsevier

    Dr Richard I Samuels

  25. Variant vicilins from a resistant Vigna unguiculata lineage (IT81D-1053) accumulate inside Callosobruchus maculatus larval midgut epithelium

    Article • Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology, February 2014, Elsevier

    Dr Richard I Samuels

  26. DIGESTION IN ADULT FEMALES OF THE LEAF-FOOTED BUGLeptoglossus zonatus(HEMIPTERA: COREIDAE) WITH EMPHASIS ON THE GLYCOSIDE HYDROLASES α-AMYLASE, α-GALACTOSIDASE, AND α-GLUCOSIDASE

    Article • Archives of Insect Biochemistry and Physiology, January 2014, Wiley

    Dr Richard I Samuels

  27. Testing fungus impregnated cloths for the control of adult Aedes aegypti under natural conditions

    Article • Parasites & Vectors, September 2013, Springer Science + Business Media

    Dr Richard I Samuels

  28. Efficiency of fungus-impregnated black cloths combined with Imidacloprid for the control of adult Aedes aegypti (Diptera: Culicidae)

    Article • Letters in Applied Microbiology, May 2013, Oxford University Press (OUP)

    Dr Richard I Samuels

  29. Chemical warfare

    Article • Communicative & Integrative Biology, March 2013, Taylor & Francis

    Dr Richard I Samuels

  30. Global proteome changes in larvae of Callosobruchus maculatus Coleoptera:Chrysomelidae:Bruchinae) following ingestion of a cysteine proteinase inhibitor

    Article • PROTEOMICS, July 2012, Wiley

    Dr Richard I Samuels

  31. Imidacloprid Inhibits Behavioral Defences of the Leaf-Cutting Ant Acromyrmex subterraneus subterraneus (Hymenoptera:Formicidae)

    Article • Journal of Insect Behavior, April 2012, Springer Science + Business Media

    Dr Richard I Samuels

  32. Symbiotic bacteria on the cuticle of the leaf-cutting ant Acromyrmex subterraneus subterraneus protect workers from attack by entomopathogenic fungi

    Article • Proceedings of the Royal Society B Biological Sciences, November 2011, Royal Society Publishing

    Dr Richard I Samuels

  33. Vicilin-derived peptides are transferred from males to females as seminal nuptial gift in the seed-feeding beetle Callosobruchus maculatus

    Article • Journal of Insect Physiology, June 2011, Elsevier

    Dr Richard I Samuels

  34. Susceptibility of adult female Aedes aegypti (Diptera: Culicidae) to the entomopathogenic fungus Metarhizium anisopliae is modified following blood feeding

    Article • Parasites & Vectors, May 2011, Springer Science + Business Media

    Dr Richard I Samuels

  35. Plant Defense Proteins That Inhibit Insect Peptidases

    Article • March 2011, Wiley

    Professor Carlos A. Peres, Dr Richard I Samuels

  36. Purification and partial characterization of an aminopeptidase from the midgut tissue of Dysdercus peruvianus

    Article • Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology, March 2011, Elsevier

    Dr Richard I Samuels

  37. The combination of the entomopathogenic fungus Metarhizium anisopliae with the insecticide Imidacloprid increases virulence against the dengue vector Aedes aegypti (Diptera: Culicidae)

    Article • Parasites & Vectors, January 2011, Springer Science + Business Media

    Dr Richard I Samuels

  38. Resource allocation among worker castes of the leaf-cutting ants Acromyrmex subterraneus subterraneus through trophallaxis

    Article • Journal of Insect Physiology, November 2010, Elsevier

    Dr Richard I Samuels

  39. The fate of vicilins, 7S storage globulins, in larvae and adult Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae)

    Article • Journal of Insect Physiology, September 2010, Elsevier

    Dr Richard I Samuels

  40. Host-mediated induction of α-amylases by larvae of the Mexican bean weevil Zabrotes subfasciatus (Coleoptera: Chrysomelidae: Bruchinae) is irreversible and observed from the initiation of the feeding period

    Article • Archives of Insect Biochemistry and Physiology, July 2010, Wiley

    Dr Richard I Samuels

  41. Purification and partial characterization of a midgut membrane-bound α-glucosidase from Quesada gigas (Hemiptera: Cicadidae)

    Article • Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology, January 2010, Elsevier

    Dr Richard I Samuels

  42. The potential ofMetarhizium anisopliaeandBeauveria bassianaisolates for the control ofAedes aegypti(Diptera: Culicidae) larvae

    Article • Biocontrol Science and Technology, September 2009, Taylor & Francis

    Dr Richard I Samuels

  43. Hydrolytic enzymes of leaf-cutting ant fungi

    Article • Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology, January 2009, Elsevier

    Dr Richard I Samuels

  44. Combining vegetable oil and sub-lethal concentrations of Imidacloprid withBeauveria bassianaandMetarhizium anisopliaeagainst adult guava weevilConotrachelus psidii(Coleoptera: Curculionidae)

    Article • Biocontrol Science and Technology, September 2008, Taylor & Francis

    Dr Richard I Samuels

  45. Effects of entomopathogenic bacterium Photorhabdus temperata infection on the intestinal microbiota of the sugarcane stalk borer Diatraea saccharalis (Lepidoptera: Crambidae)

    Article • Journal of Invertebrate Pathology, September 2008, Elsevier

    Dr Richard I Samuels

  46. Effects of Entomopathogenic Bacterium Photorhabdus temperata Infection on the Digestive Enzymes of Diatraea saccharalis (Lepidoptera: Crambidae) Larvae

    Article • Protein and Peptide Letters, July 2008, Bentham Science Publishers

    Dr Richard I Samuels

  47. Efficacy ofHeterorhabditis baujardiLPP7 (Nematoda: Rhabditida) applied inGalleria mellonella(Lepidoptera: Pyralidae) insect cadavers toConotrachelus psidii, (Coleoptera: Curculionidae) larvae

    Article • Biocontrol Science and Technology, January 2008, Taylor & Francis

    Dr Richard I Samuels

  48. Digestive enzymes in larvae of the leaf cutting ant, Acromyrmex subterraneus (Hymenoptera: Formicidae: Attini)

    Article • Journal of Insect Physiology, November 2007, Elsevier

    Dr Richard I Samuels

  49. Biphasic perimicrovillar membrane production following feeding by previously starved Dysdercus peruvianus (Hemiptera: Pyrrhocoridae)

    Article • Journal of Insect Physiology, June 2007, Elsevier

    Dr Richard I Samuels

  50. Selection of entomopathogenic fungi for use in combination with sub-lethal doses of imidacloprid: perspectives for the control of the leaf-cutting ant Atta sexdens rubropilosa Forel (Hymenoptera: Formicidae)

    Article • Mycopathologia, April 2007, Springer Science + Business Media

    Dr Richard I Samuels

  51. Oral trophallaxis in adult leaf-cutting ants Acromyrmex subterraneus subterraneus (Hymenoptera, Formicidae)

    Article • Insectes Sociaux, June 2006, Springer Science + Business Media

    Dr Richard I Samuels

  52. Presence of the storage seed protein vicilin in internal organs of larval Callosobruchus maculatus (Coleoptera: Bruchidae)

    Article • Journal of Insect Physiology, February 2006, Elsevier

    Dr Richard I Samuels

  53. Sucrose hydrolases from the midgut of the sugarcane stalk borer Diatraea saccharalis

    Article • Journal of Insect Physiology, November 2004, Elsevier

    Dr Richard I Samuels

  54. Digestive enzymes of leaf-cutting ants, Acromyrmex subterraneus (Hymenoptera: Formicidae: Attini): distribution in the gut of adult workers and partial characterization

    Article • Journal of Insect Physiology, October 2004, Elsevier

    Dr Richard I Samuels

  55. Ocurrence of the antibiotic producing bacteriumBurkholderiasp. in colonies of the leaf-cutting antAtta sexdens rubropilosa

    Article • FEMS Microbiology Letters, October 2004, Oxford University Press (OUP)

    Dr Richard I Samuels

  56. Infection of the Coffee Berry Borer Hypothenemus hampei (Coleoptera: Scolytidae) by Brazilian Isolates of the Entomopathogenic Fungi Beauveria bassiana and Metarhizium anisopliae (Deuteromycotina: Hyphomycetes)

    Article • Biocontrol Science and Technology, October 2002, Taylor & Francis

    Dr Carlos Gava, Dr Richard I Samuels

  57. Infection of Blissus antillus (Hemiptera: Lygaeidae) Eggs by the Entomopathogenic Fungi Metarhizium anisopliae and Beauveria bassiana

    Article • Biological Control, March 2002, Elsevier

    Dr Carlos Gava, Dr Richard I Samuels

  58. Induction of digestive α-amylases in larvae of Zabrotes subfasciatus (Coleoptera: Bruchidae) in response to ingestion of common bean α-amylase inhibitor 1

    Article • Journal of Insect Physiology, November 2001, Elsevier

    Dr Richard I Samuels

  59. Physiology and Biochemistry of Insect Moulting Fluid

    Article • January 1996, Elsevier

    Dr Richard I Samuels

  60. Cuticle degrading proteases from insect moulting fluid and culture filtrates of entomopathogenic fungi

    Article • Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology, April 1995, Elsevier

    Dr Richard I Samuels

  61. Moulting fluid enzymes of the tobacco hornworm, Manduca sexta: Inhibitory effect of 20-hydroxyecdysone on the activity of the cuticle degrading enzyme MFP-1

    Article • Journal of Insect Physiology, August 1993, Elsevier

    Dr Richard I Samuels

  62. A cuticle-degrading proteinase from the moulting fluid of the tobacco hornworm, Manduca sexta

    Article • Insect Biochemistry and Molecular Biology, July 1993, Elsevier

    Dr Richard I Samuels

  63. An aminopeptidase from the moulting fluid of the tobacco hornworm, Manduca sexta

    Article • Insect Biochemistry and Molecular Biology, July 1993, Elsevier

    Dr Richard I Samuels

  64. Molting fluid enzymes of the tobacco hornworm,Manduca sexta: Timing of proteolytic and chitinolytic activity in relation to pre-ecdysial development

    Article • Archives of Insect Biochemistry and Physiology, January 1993, Wiley

    Dr Richard I Samuels

  65. The partial characterisation of endoproteases and exoproteases from three species of entomopathogenic entomophthorales and two species of deuteromycetes

    Article • Mycopathologia, June 1990, Springer Science + Business Media

    Dr Richard I Samuels

  66. Insecticidal activity of hypericin towardsManduca sexta larvae

    Article • Journal of Chemical Ecology, March 1989, Springer Science + Business Media

    Dr Richard I Samuels

  67. Calcium channel activation of insect muscle by destruxins, insecticidal compounds produced by the entomopathogenic fungus Metarhizium anisopliae

    Article • Comparative Biochemistry and Physiology Part C Comparative Pharmacology, January 1988, Elsevier

    Dr Richard I Samuels

  68. Influence of age and diet on DNA synthesis and the DNA content of mid-gut cells in the dipteran Sarcophaga carnaria

    Article • Mechanisms of Ageing and Development, September 1983, Elsevier

    Dr Richard I Samuels