Scholarlink

Background <p>Mosquitoes are primary vectors for various diseases, with urban areas particularly vulnerable due to dense populations and favourable breeding conditions. In India, mosquito-borne diseases such as malaria, dengue, and lymphatic filariasis remain pressing public health concerns. This study assessed the effectiveness and longevity of Spinosad, a naturally derived bio-larvicide, as an eco-friendly alternative to conventional insecticides<b>.</b></p> Methods <p>A large-scale field study, following WHO protocols, tested three Spinosad formulations – DT (7.48%), EC (20.6%), and G30 (2.5%) against <i>Aedes aegypti</i> and <i>Anopheles stephensi</i>. EC (2.5%) and G30 were also tested against <i>Culex quinquefasciatus</i> across seasons. Reapplication was performed when immature-mosquito densities in treated sites matched those in controls.</p> Results <p>All formulations documented rapid and significant immature-mosquito densities reduction. Efficacy duration varied by formulation, species, and habitat: reapplication for <i>Aedes</i>, was required on day 28(EC), day 35(G30) and day 56(DT) (P = 0.104); for <i>Anopheles</i>, on day 52.5 (53)(EC), day 49(G30) &amp; day 70(DT) (P = 0.736); for <i>Culex</i>, on day 35(EC, G30) in drains and day 49(G30) or day 63(EC) in cement tanks (p = 0.896).</p> Conclusion <p>The study underscores Spinosad’s strong larvicidal effect at low dosages, significantly outperforming conventional larvicides. In the context of rising insecticide resistance and recurring disease outbreaks, Spinosad is an effective, and sustainable tool for mosquito larval control.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Field trial finds promising evidence on Spinosad: a bio-larvicide for mosquito control in urban settings in Bengaluru, India

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月18日

查看全文
  • Vani Hanumantappa Chalageri,
  • Sreehari Uragayala,
  • Shrinivasa B. Marinaik,
  • N Sujith Nath,
  • Shankar Gopal,
  • Renuka Siddaramegowda,
  • Raghavendra Kamaraju,
  • Alex Eapen

摘要

Background

Mosquitoes are primary vectors for various diseases, with urban areas particularly vulnerable due to dense populations and favourable breeding conditions. In India, mosquito-borne diseases such as malaria, dengue, and lymphatic filariasis remain pressing public health concerns. This study assessed the effectiveness and longevity of Spinosad, a naturally derived bio-larvicide, as an eco-friendly alternative to conventional insecticides.

Methods

A large-scale field study, following WHO protocols, tested three Spinosad formulations – DT (7.48%), EC (20.6%), and G30 (2.5%) against Aedes aegypti and Anopheles stephensi. EC (2.5%) and G30 were also tested against Culex quinquefasciatus across seasons. Reapplication was performed when immature-mosquito densities in treated sites matched those in controls.

Results

All formulations documented rapid and significant immature-mosquito densities reduction. Efficacy duration varied by formulation, species, and habitat: reapplication for Aedes, was required on day 28(EC), day 35(G30) and day 56(DT) (P = 0.104); for Anopheles, on day 52.5 (53)(EC), day 49(G30) & day 70(DT) (P = 0.736); for Culex, on day 35(EC, G30) in drains and day 49(G30) or day 63(EC) in cement tanks (p = 0.896).

Conclusion

The study underscores Spinosad’s strong larvicidal effect at low dosages, significantly outperforming conventional larvicides. In the context of rising insecticide resistance and recurring disease outbreaks, Spinosad is an effective, and sustainable tool for mosquito larval control.