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June 14, 2026Journal of Applied Entomology

Behavioural Response and Predation Efficiency of Generalist Predator, Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae) Larvae to Different Webbing Densities of Tetranychus urticae Koch (Acari: Tetranychidae)

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Authors

HAHafiz Muhammad Sajid AliKing Saud UniversityJMJawwad Hassan MirzaKing Saud UniversityFAFahad Jaber AlatawiKing Saud University

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Implication

Randomized trial investigates predation efficiency of Chrysoperla carnea larvae on Tetranychus urticae under varying webbing densities, suggesting improved biological control strategies.

Key Points

  • This study aims to investigate how different webbing densities affect the predation behavior and efficiency of Chrysoperla carnea larvae.
  • Observations recorded for three larval instars of Chrysoperla carnea after release.
  • Comparison of behavioral responses in two treatments: low webbing density (LWD) and high webbing density (HWD).
  • Predation rate assessed after 24 hours, focusing on Tetranychus urticae eggs and motiles.
  • 2nd instar larvae had a significantly different predation rate on Tetranychus urticae between LWD and HWD treatments.
  • After 24 hours, larvae preyed more on T. urticae eggs compared to motiles in both webbing densities.
  • Greater time spent in searching behavior was noted under both webbing conditions, with variations among instars.

Cite This Study

Ali et al. (2026) studied this question.

synapsesocial.com/papers/6a2e479db1cc60ccdea8c203https://doi.org/10.1111/jen.70129
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