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Purpose of Review <p>This review compares the advantages and limitations of indoor residual spraying (IRS) and ultra-low volume (ULV) space spraying for Chagas disease vector control. It also explores the potential of ULV spraying as a technique for evaluating novel insecticide formulations, including those based on natural products.</p> Recent Findings <p>Advances in nanotechnology have led to the development of nanoemulsions, microemulsions, and encapsulated formulations that improve the stability, bioavailability, and efficacy of insecticidal compounds. In addition, growing knowledge of behaviour modifying compounds (e.g., hyperactivators and flushing-out agents), enhance adhesion and cuticular penetration, or inhibit detoxification mechanisms supports the design of ready-to-use formulations. These innovations can be applied through ULV space spraying, eliminating the need for dilution and expanding operational flexibility for Chagas disease vector control.</p> Summary <p>Vector control in Central and South America relies primarily on indoor residual spraying (IRS), which faces significant limitations due to widespread pyrethroid resistance in triatomine populations and the limited availability of effective alternative contact insecticides to be applied using the residual spraying technique (IRS). ULV space spraying offers a promising complementary strategy to overcome these constraints. ULV applications require substantially lower solvent volumes and enable the use of purpose‑designed, ready‑to‑use formulations tailored to specific vector targets and resistance profiles. </p>

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Could Indoor Space Spraying (ISS) be a Complementary Technique for Chagas Vectors Control? Comparison with Indoor Residual Spraying (IRS) and Demonstration by a Pressurized Aerosol Spray

  • 期刊论文

  • 发表日期：

    2026年6月17日

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  • Alejandro Lucia,
  • Gastón Mougabure-Cueto,
  • Mercedes Maria Noel Reynoso,
  • Eduardo Guzmán,
  • Eduardo Zerba,
  • Jonny Edward Duque,
  • Raúl A. Alzogaray,
  • Ariel Ceferino Toloza

摘要

Purpose of Review

This review compares the advantages and limitations of indoor residual spraying (IRS) and ultra-low volume (ULV) space spraying for Chagas disease vector control. It also explores the potential of ULV spraying as a technique for evaluating novel insecticide formulations, including those based on natural products.

Recent Findings

Advances in nanotechnology have led to the development of nanoemulsions, microemulsions, and encapsulated formulations that improve the stability, bioavailability, and efficacy of insecticidal compounds. In addition, growing knowledge of behaviour modifying compounds (e.g., hyperactivators and flushing-out agents), enhance adhesion and cuticular penetration, or inhibit detoxification mechanisms supports the design of ready-to-use formulations. These innovations can be applied through ULV space spraying, eliminating the need for dilution and expanding operational flexibility for Chagas disease vector control.

Summary

Vector control in Central and South America relies primarily on indoor residual spraying (IRS), which faces significant limitations due to widespread pyrethroid resistance in triatomine populations and the limited availability of effective alternative contact insecticides to be applied using the residual spraying technique (IRS). ULV space spraying offers a promising complementary strategy to overcome these constraints. ULV applications require substantially lower solvent volumes and enable the use of purpose‑designed, ready‑to‑use formulations tailored to specific vector targets and resistance profiles.