Unveiling the insights of controlling invasive Aedes mosquitoes in simulated urban catch basins by Sumilarv 0.5G Sachet containing pyriproxyfen.

Journal of medical entomology · 2026 · Unclear · Insufficient evidence

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UnclearInsufficient evidencePaper 12

Study snapshot

PublicationJournal of medical entomology · 2026

Study typeother

Reported directionUnclear

Evidence ratingInsufficient

Abstract

Aedes aegypti (L.) and Aedes albopictus (Skuse) are significant urban pests and disease vectors. In addition to small containers, the urban storm drains serve as an extensive production ground. Management of these species is notoriously challenging due to numerous reasons, such as lack of optimal larvicide products. A larvicide, Sumilarv 0.5G Sachet, containing 0.5% pyriproxyfen, a juvenile hormone analog (JHA), was evaluated for its bioactivity and efficacy in simulated storm drain catch basins. In bioassays, high bioactivity in inhibition of emergence (IE) was observed with no significant differences between test materials or species. Against Ae. aegypti, the IE10, IE50 and IE90, respectively, measured 0.011, 0.028, and 0.122 ppb for the technical grade, and 0.016, 0.036, and 0.161 ppb for the formulated granules from the sachet. A similar bioactivity was observed in Ae. albopictus. The IE10, IE50, and IE90, respectively, amounted 0.013, 0.033, and 0.142 ppb for the technical grade, and 0.015, 0.038, and 0.151 ppb for the formulated product. In simulated storm drain catch basins, application of Sumilarv 0.5G Sachet at three sachets (25 g each) per 151.4 L of water provided sustained control of Ae. aegypti (91.1% to 100%) and Ae. albopictus (91.0% and 100%) for up to 22 wk, despite poor water quality and low detectable pyriproxyfen concentrations. These results demonstrate that Sumilarv 0.5G Sachet is a highly effective and reliable larvicide for long-term control of invasive Aedes mosquitoes in urban storm drain systems.

Machine Enhanced Logic

AI evidence extraction

Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.

Study typeother

Effect directionunclear

PopulationNot supplied

Sample sizeNot supplied

ExposureNot supplied

Evidence strengthInsufficientConfidence: 66% · Peer reviewed: yes

Main findings

Sumilarv 0.5G Sachet (0.5% pyriproxyfen) showed high bioactivity in emergence inhibition with similar IE10/IE50/IE90 values across Aedes species and between technical grade and formulated granules. In simulated storm drain catch basins, applying three 25 g sachets per 151.4 L provided sustained control (~91–100%) of Ae. aegypti and Ae. albopictus for up to 22 weeks despite poor water quality and low detectable pyriproxyfen concentrations.

Outcomes measured

Inhibition of emergence (IE) in Aedes aegypti and Aedes albopictus
IE10/IE50/IE90 (ppb) for technical grade pyriproxyfen and formulated granules
Sustained control (%) in simulated storm drain catch basins over time (up to 22 weeks)
Detectable pyriproxyfen concentrations in catch basin water

View raw extracted JSON

{
  "study_type": "other",
  "exposure": {
    "band": null,
    "source": null,
    "frequency_mhz": null,
    "sar_wkg": null,
    "duration": null
  },
  "population": null,
  "sample_size": null,
  "outcomes": [
    "Inhibition of emergence (IE) in Aedes aegypti and Aedes albopictus",
    "IE10/IE50/IE90 (ppb) for technical grade pyriproxyfen and formulated granules",
    "Sustained control (%) in simulated storm drain catch basins over time (up to 22 weeks)",
    "Detectable pyriproxyfen concentrations in catch basin water"
  ],
  "main_findings": "Sumilarv 0.5G Sachet (0.5% pyriproxyfen) showed high bioactivity in emergence inhibition with similar IE10/IE50/IE90 values across Aedes species and between technical grade and formulated granules. In simulated storm drain catch basins, applying three 25 g sachets per 151.4 L provided sustained control (~91–100%) of Ae. aegypti and Ae. albopictus for up to 22 weeks despite poor water quality and low detectable pyriproxyfen concentrations.",
  "effect_direction": "unclear",
  "limitations": [],
  "evidence_strength": "insufficient",
  "confidence": 0.66,
  "peer_reviewed_likely": "yes",
  "keywords": [
    "Aedes aegypti",
    "Aedes albopictus",
    "storm drains",
    "catch basins",
    "pyriproxyfen",
    "Sumilarv 0.5G Sachet",
    "larvicide",
    "inhibition of emergence",
    "urban pest control"
  ],
  "suggested_hubs": []
}

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AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.

Identifiers and source

DOI: 10.1093/jme/tjag015
PubMed: 41637140

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