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Toxicity and metabolism of zeta-cypermethrin in field-collected and laboratory strains of the neotropical predator Chrysoperla externa Hagen (Neuroptera: Chrysopidae)

Marina Haramboure (UGent) , Guy Smagghe (UGent) , Jinzhi Niu (UGent) , Olivier Christiaens (UGent) , Pieter Spanoghe (UGent) and RA Alzogaray
(2017) NEOTROPICAL ENTOMOLOGY. 46(3). p.310-315
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Abstract
Resistance to pesticides has been studied in several insect pests, but information on the natural enemies of pests-including the Neotropical predator Chrysoperla externa Hagen (Neuroptera: Chrysopidae), a major biological control agent in South America-is lacking. We report here a comparative study between a field-collected strain of C. externa subjected to monthly sprayings of pyrethroids and neonicotinoids and a laboratory strain without exposure to pesticides. The tolerance of both strains against zeta-cypermethrin was similar, and addition of the synergist piperonyl butoxide increased the toxicity by 30% in both strains. Gas-chromatography analyses and mixed-function-oxidase measurements indicated similar values in both strains and also confirmed the key role of oxidative metabolism in this species. Because C. externa has maintained a tolerance to zeta-cypermethrin without previous pesticide exposure, this species could potentially be mass-reared and released in fields in the presence of pesticide pressure.
Keywords
Chrysoperla externa (Neuroptera: Chrysopidae), integrated pest management, pyrethroids, tolerance, CARNEA NEUROPTERA, REALIZED HERITABILITY, BIOLOGICAL-CONTROL, INCREASED FITNESS, CROSS-RESISTANCE, PESTICIDES, TEBUFENOZIDE, ARGENTINA, STEPHENS, SPINOSAD

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Chicago
Haramboure, Marina, Guy Smagghe, Jinzhi Niu, Olivier Christiaens, Pieter Spanoghe, and RA Alzogaray. 2017. “Toxicity and Metabolism of Zeta-cypermethrin in Field-collected and Laboratory Strains of the Neotropical Predator Chrysoperla Externa Hagen (Neuroptera: Chrysopidae).” Neotropical Entomology 46 (3): 310–315.
APA
Haramboure, M., Smagghe, G., Niu, J., Christiaens, O., Spanoghe, P., & Alzogaray, R. (2017). Toxicity and metabolism of zeta-cypermethrin in field-collected and laboratory strains of the neotropical predator Chrysoperla externa Hagen (Neuroptera: Chrysopidae). NEOTROPICAL ENTOMOLOGY, 46(3), 310–315.
Vancouver
1.
Haramboure M, Smagghe G, Niu J, Christiaens O, Spanoghe P, Alzogaray R. Toxicity and metabolism of zeta-cypermethrin in field-collected and laboratory strains of the neotropical predator Chrysoperla externa Hagen (Neuroptera: Chrysopidae). NEOTROPICAL ENTOMOLOGY. 2017;46(3):310–5.
MLA
Haramboure, Marina et al. “Toxicity and Metabolism of Zeta-cypermethrin in Field-collected and Laboratory Strains of the Neotropical Predator Chrysoperla Externa Hagen (Neuroptera: Chrysopidae).” NEOTROPICAL ENTOMOLOGY 46.3 (2017): 310–315. Print.
@article{8514283,
  abstract     = {Resistance to pesticides has been studied in several insect pests, but information on the natural enemies of pests-including the Neotropical predator Chrysoperla externa Hagen (Neuroptera: Chrysopidae), a major biological control agent in South America-is lacking. We report here a comparative study between a field-collected strain of C. externa subjected to monthly sprayings of pyrethroids and neonicotinoids and a laboratory strain without exposure to pesticides. The tolerance of both strains against zeta-cypermethrin was similar, and addition of the synergist piperonyl butoxide increased the toxicity by 30\% in both strains. Gas-chromatography analyses and mixed-function-oxidase measurements indicated similar values in both strains and also confirmed the key role of oxidative metabolism in this species. Because C. externa has maintained a tolerance to zeta-cypermethrin without previous pesticide exposure, this species could potentially be mass-reared and released in fields in the presence of pesticide pressure.},
  author       = {Haramboure, Marina and Smagghe, Guy and Niu, Jinzhi and Christiaens, Olivier and Spanoghe, Pieter and Alzogaray, RA},
  issn         = {1519-566X},
  journal      = {NEOTROPICAL ENTOMOLOGY},
  language     = {eng},
  number       = {3},
  pages        = {310--315},
  title        = {Toxicity and metabolism of zeta-cypermethrin in field-collected and laboratory strains of the neotropical predator Chrysoperla externa Hagen (Neuroptera: Chrysopidae)},
  url          = {http://dx.doi.org/10.1007/s13744-017-0497-z},
  volume       = {46},
  year         = {2017},
}

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