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Nanoparticles alter locust development and behaviour.

Preetam Kumar Sharma1,2, Liya Wei3, Atul Thakur4,5

  • 1Nanotechnology and Integrated Bioengineering Centre (NIBEC), School of Engineering, Ulster University, York Street, Belfast, Northern Ireland, BT15 1AP, United Kingdom. n.bhalla@ulster.ac.uk.

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|March 6, 2025
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Summary
This summary is machine-generated.

Nickel ferrite nanoparticles offer a safe and cost-effective solution for locust control. This nanotechnology disrupts locust development and growth, providing a sustainable alternative to chemical insecticides.

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Area of Science:

  • Agricultural Science
  • Materials Science
  • Pest Management

Background:

  • Locusts are major pests threatening global food security.
  • Conventional insecticides present environmental and health concerns.
  • Sustainable pest management solutions are urgently needed.

Purpose of the Study:

  • To evaluate the efficacy of nickel ferrite (NiFe2O4) nanoparticles as a novel insecticide for locust management.
  • To investigate the impact of NiFe2O4 nanoparticles on locust development and physiology.
  • To assess the environmental safety and recoverability of NiFe2O4 nanoparticles.

Main Methods:

  • Synthesis and characterization of nickel ferrite (NiFe2O4) nanoparticles (36 ± 10 nm).
  • Exposure of locust embryos and nymphs to NiFe2O4 nanoparticles.
  • Assessment of developmental abnormalities, heart rate, and cardiac dimensions.
  • Analysis of nanoparticle retention in adult locusts and recovery from soil.

Main Results:

  • NiFe2O4 nanoparticles significantly impaired locust blastokinesis and growth, leading to malformed nymphs.
  • Exposed embryos exhibited reduced heart rates (20 bpm vs. 30 bpm in controls) and altered cardiac dimensions.
  • Adult locusts retained nanoparticles in their coelomic cavities, suitable for swarm tracking.
  • Over 90% of nanoparticles were recovered from soil, indicating minimal ecological impact.

Conclusions:

  • Nickel ferrite nanoparticles present a safe, cost-effective, and sustainable nanotechnology-based insecticide for locust management.
  • The disruption of locust development and potential for swarm tracking offer innovative pest control strategies.
  • High recoverability from soil minimizes environmental risks, supporting ecological safety.