Cotton Pest Management and Pyrethroid Resistance in Mosquitoes
Author Information
Author(s): Yadouleton Anges, Martin Thibaud, Padonou Gil, Chandre Fabrice, Asidi Alex, Djogbenou Luc, Dabiré Roch, Aïkpon Rock, Boko Michel, Glitho Isabelle, Akogbeto Martin
Primary Institution: Centre de Recherche Entomologique de Cotonou (CREC)
Hypothesis
How do cotton pest management practices affect pyrethroid resistance in Anopheles gambiae populations?
Conclusion
The study found that extensive use of pyrethroids in cotton farming has led to widespread resistance in Anopheles gambiae populations.
Supporting Evidence
- An. gambiae populations showed high resistance to DDT with mortality rates of 33%, 42%, and 65% in different farming practices.
- The Kdr gene was found at high frequencies in areas using pyrethroids extensively.
- Bioassay tests indicated that An. gambiae from BP areas had a mortality rate of 94% to permethrin, showing high susceptibility.
Takeaway
Farmers using a lot of pesticides on cotton crops are making mosquitoes stronger against those pesticides, which is bad for fighting malaria.
Methodology
The study used semi-structured questionnaires and bioassay tests to assess insecticide susceptibility and resistance genes in An. gambiae.
Potential Biases
Potential bias in self-reported data from farmers regarding pesticide use.
Limitations
The study may not account for all environmental factors affecting mosquito resistance.
Participant Demographics
Farmers from cotton-growing areas in Northern Benin.
Statistical Information
P-Value
p<0.05
Confidence Interval
[Cl95]
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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