Diatomaceous Earth for Arthropod Pest Control: Back to the Future

Area of Science:

• Agricultural Science
• Environmental Science
• Entomology

Background:

• Synthetic insecticide overuse poses risks to biodiversity, welfare, and food security.
• Sustainable agriculture necessitates eco-friendly pest control alternatives.
• Diatomaceous earths (DEs) are natural mineral dusts with pest control potential.

Purpose of the Study:

• To comprehensively review the application of DEs against various arthropod pests.
• To analyze DEs' mechanisms of action, efficacy, and integration into Integrated Pest Management (IPM).
• To critically assess the challenges and opportunities for DE adoption in pest control.

Main Methods:

• Literature review of scientific studies on DEs for pest control.
• Analysis of DEs' efficacy against diverse arthropod taxa (Acarina, Blattodea, Coleoptera, Diptera, Hemiptera, Hymenoptera, Ixodida, Lepidoptera).
• Evaluation of DEs applied alone and in combination with other pest management techniques.

Main Results:

• DEs demonstrate efficacy against a broad spectrum of arthropod pests, including stored product pests, household insects, and agricultural pests.
• Mechanisms of action involve physical disruption of the insect cuticle and dehydration.
• DEs can be effectively integrated into IPM strategies, often showing synergistic effects with other control methods.

Conclusions:

• DEs represent a promising, environmentally friendly tool for sustainable pest management.
• Further research and practical implementation are needed to overcome adoption challenges.
• DEs contribute to reducing reliance on synthetic pesticides, supporting biodiversity and food safety.