What does this research mean for the field?

Exposure to sublethal and median-lethal concentrations of chlorantraniliprole causes significant direct and transgenerational suppression of Spodoptera frugiperda population growth by delaying development, reducing survival, and impairing reproduction. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate the lethal, sublethal, and transgenerational effects of chlorantraniliprole on the demographic traits and population growth potential of Spodoptera frugiperda.

August 30, 2026Journal of Applied ToxicologyOpen Access

Lethal, Sublethal and Transgenerational Effects of Chlorantraniliprole on the Demography and Population Projection of Spodoptera frugiperda (J.E. Smith, 1797) Using an Age‐Stage, Two‐Sex Life Table

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Authors

SRS. M. Ranjitha SNSuresh M. NebapureIndian Agricultural Research Institute SRSalim RajnaIndian Council of Agricultural Research

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Implication

Laboratory demographic study demonstrates transgenerational suppression of fall armyworm population growth by chlorantraniliprole, highlighting prolonged pest control benefits.

Key Points

To evaluate the lethal, sublethal, and transgenerational effects of chlorantraniliprole on the demographic traits and population growth potential of Spodoptera frugiperda.
Determined baseline lethal and sublethal concentrations (LC10, LC25, and LC50) of chlorantraniliprole against an Indian population of S. frugiperda.
Evaluated development, survival, and reproduction across F1 and F2 generations using an age-stage, two-sex life-table approach and demographic projection analysis.
Chlorantraniliprole demonstrated high toxicity against S. frugiperda, with LC10, LC25, and LC50 values of 0.0047, 0.0354, and 0.3274 mg L^-1, respectively.
Direct exposure in the parental F1 generation prolonged larval and pupal development, extended female longevity, and significantly reduced fecundity.
Parental exposure caused transgenerational impairments in F2 progeny, significantly reducing the intrinsic rate of increase, finite rate of increase, net reproductive rate, and gross reproductive rate while extending mean generation time and doubling time.

Cite This Study

Ranjitha et al. (2026) studied this question.

synapsesocial.com/papers/6a93f0ce6c1a8fb52e79d449 https://doi.org/10.1002/jat.70414

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Implication

Laboratory demographic study demonstrates transgenerational suppression of fall armyworm population growth by chlorantraniliprole, highlighting prolonged pest control benefits.

Lethal, Sublethal and Transgenerational Effects of Chlorantraniliprole on the Demography and Population Projection of Spodoptera frugiperda (J.E. Smith, 1797) Using an Age‐Stage, Two‐Sex Life Table

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Key Points

Cite This Study

Lethal, Sublethal and Transgenerational Effects of Chlorantraniliprole on the Demography and Population Projection of Spodoptera frugiperda (J.E. Smith, 1797) Using an Age‐Stage, Two‐Sex Life Table

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