What question did this study set out to answer?

To compare the functional and numerical responses of Neoseiulus californicus to Tetranychus urticae and Frankliniella occidentalis.

May 20, 2026Egyptian Journal of Biological Pest Control0 citationsOpen Access

Comparison of Functional and Numerical Responses of Neoseiulus californicus to Two Pests

Functional and numerical response comparison of Neoseiulus californicus (McGregor) (Acari: Phytoseiidae) to Frankliniella occidentalis (Pergande) and Tetranychus urticae Koch

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Authors

ASAtef Sayed XXX Xu MAMohammad Ali Abdelhady

Discussion

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Overview

Randomized trial compares predator responses to Tetranychus urticae and Frankliniella occidentalis, suggesting effective control strategies.

Key Points

To compare the functional and numerical responses of Neoseiulus californicus to Tetranychus urticae and Frankliniella occidentalis.
Quantitative assessment of predation under controlled laboratory conditions.
Evaluation of functional responses across different prey stages and operational densities.
Analysis of oviposition rates and an integrated performance index.
N. californicus showed a Type II functional response with higher attack rates on T. urticae (0.72–0.76 day⁻¹) compared to F. occidentalis (0.45–0.59 day⁻¹).
Maximum predation rates were 370–385 vs. 41–49 prey day⁻¹ for spider mites and thrips, respectively; handling time was significantly shorter for spider mites.
Oviposition rates were 1.39× higher on T. urticae (2.50 ± 0.27 eggs female⁻¹ day⁻¹) than on F. occidentalis (1.80 ± 0.22 eggs female⁻¹ day).

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Cite This Study

Sayed et al. (2026) studied this question.

synapsesocial.com/papers/6a0d5013f03e14405aa9ba8e https://doi.org/10.1186/s41938-026-00899-y

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May 20, 2026Egyptian Journal of Biological Pest Control0 citationsOpen Access

Comparison of Functional and Numerical Responses of Neoseiulus californicus to Two Pests

Functional and numerical response comparison of Neoseiulus californicus (McGregor) (Acari: Phytoseiidae) to Frankliniella occidentalis (Pergande) and Tetranychus urticae Koch

View Full Paper

Authors

ASAtef Sayed XXX Xu MAMohammad Ali Abdelhady

Discussion

Member takes

Overview

Randomized trial compares predator responses to Tetranychus urticae and Frankliniella occidentalis, suggesting effective control strategies.

Key Points

To compare the functional and numerical responses of Neoseiulus californicus to Tetranychus urticae and Frankliniella occidentalis.
Quantitative assessment of predation under controlled laboratory conditions.
Evaluation of functional responses across different prey stages and operational densities.
Analysis of oviposition rates and an integrated performance index.
N. californicus showed a Type II functional response with higher attack rates on T. urticae (0.72–0.76 day⁻¹) compared to F. occidentalis (0.45–0.59 day⁻¹).
Maximum predation rates were 370–385 vs. 41–49 prey day⁻¹ for spider mites and thrips, respectively; handling time was significantly shorter for spider mites.
Oviposition rates were 1.39× higher on T. urticae (2.50 ± 0.27 eggs female⁻¹ day⁻¹) than on F. occidentalis (1.80 ± 0.22 eggs female⁻¹ day).

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View Full Paper

Cite This Study

Sayed et al. (2026) studied this question.

synapsesocial.com/papers/6a0d5013f03e14405aa9ba8e https://doi.org/10.1186/s41938-026-00899-y

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