Related Experiment Video
Updated: Aug 3, 2025
09:59
A Bacterial Oral Feeding Assay with Antibiotic-Treated Mosquitoes
Published on: September 12, 2020
6.5K
Pseudomonas protegens Affects Mosquito Survival and Development.
Rim Hamze1, Cipriano Foxi2, Salvatore Ledda2
1Dipartimento Di Agraria, University of Sassari, Viale Italia 39/A, 07100, Sassari, Italy.
Current Microbiology
|April 7, 2023
Summary
Pseudomonas protegens effectively kills Culex pipiens and Aedes albopictus mosquito larvae. This biocontrol bacterium shows potential for disease vector control, impacting larval development and adult emergence.
Area of Science:
- Microbiology
- Medical Entomology
- Biocontrol Agents
Background:
- Mosquitoes like Culex pipiens and Aedes albopictus are significant vectors of diseases globally.
- Effective vector control strategies are crucial for public health, especially in disease-prone regions.
Purpose of the Study:
- To evaluate the insecticidal efficacy of Pseudomonas protegens against mosquito larvae.
- To determine the pathogenic potential of P. protegens on Culex pipiens and Aedes albopictus.
Main Methods:
- Larval exposure to varying concentrations of Pseudomonas protegens.
- Monitoring of larval mortality, development, and adult emergence rates.
- Assessment of dose-dependent and age-specific susceptibility.
Main Results:
- Over 90% mortality in mosquito larvae within 72 hours at 100 million CFU/ml.
- Lethal effects were concentration-dependent, with younger larvae showing higher susceptibility.
- Sub-lethal doses significantly slowed development and reduced adult emergence.
Conclusions:
- Pseudomonas protegens exhibits potent insecticidal activity against aquatic mosquito larvae.
- This root-associated bacterium represents a novel biocontrol agent for mosquito vector control.
- Findings highlight P. protegens as a potential tool against disease-transmitting mosquito species.
