ArticleParasites & vectors2022
Rapid evolution of insecticide resistance and patterns of pesticides usage in agriculture in the city of Yaoundé, Cameroon.
Article in Parasites & vectors, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed.
- Physical integrity and bioefficacy of long-lasting insecticidal nets 18 months after use among Central African Republic refugees in Gado-Badzere, a high malaria burden camp in Cameroon.Parasite epidemiology and control · 2026Article
- Phytol from Sphaeranthus indicus: A Natural Insecticide Against Aedes aegypti and Culex quinquefasciatus.Acta parasitologica · 2026Article
- Spatial and temporal signatures of genomic insecticide resistance in the Anopheles arabiensis mosquito malaria vector from Ethiopia.Research square · 2026Article
- Multi-organ toxicity via oxidative stress and disrupting mitochondrial plasticity induced by bendiocarb in zebrafish.Redox biology · 2026Article
- Insecticide resistance dynamics inGigaByte (Hong Kong, China) · 2026Article
- Maternal and cross-stage effects of Metarhizium pingshaense fungal infection on the malaria mosquito Anopheles coluzzii life-history.PloS one · 2026Article
- Impact of combined vector control interventions on Anopheles gambiae sensu lato resistance dynamics in a high pyrethroid resistance settings in Southwestern Burkina Faso.Malaria journal · 2025Article
- Pyrethroid resistance in Aedes aegypti: genetic mechanisms worldwide, and recommendations for effective vector control.Parasites & vectors · 2025Review
- Opportunities and challenges for plague vector control in Madagascar.PLoS neglected tropical diseases · 2025Review
- Malaria transmission, insecticide resistance and efficacy of insecticide-treated nets in Belabo and Ouami, two localities of the East Region of Cameroon.Current research in parasitology & vector-borne diseases · 2025Article
- First detection of kdr L1014F allele in Anopheles ziemanni and Anopheles pharoensis in Cameroon and distribution of the allele in members of the Anopheles gambiae complex.Parasites & vectors · 2024Article
- The Synergistic Effect of Lemongrass Essential Oil and Flometoquin, Flonicamid, and Sulfoxaflor onInsects · 2024Article
- Isolation of a NovelJournal of fungi (Basel, Switzerland) · 2024Article
- Article
- Effects of the G-quadruplex-binding drugs quarfloxin and CX-5461 on the malaria parasite Plasmodium falciparum.International journal for parasitology. Drugs and drug resistance · 2023Article
- Pyrethroid Resistance Situation across Different Eco-Epidemiological Settings in Cameroon.Molecules (Basel, Switzerland) · 2022Article
- DDT Resistance inGenes · 2022Article
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7 authors.
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Abstract
backgroundThe practice of agriculture in urban settings contributes to the rapid expansion of insecticide resistance in malaria vectors. However, there is still not enough information on pesticide usage in most urban settings. The present study aims to assess the evolution of Anopheles gambiae (s.l.) population susceptibility to insecticides and patterns of pesticide usage in agriculture in the city of Yaoundé, Cameroon.
methodsWHO susceptibility tests and synergist PBO bioassays were conducted on adult An. gambiae (s.l.) mosquitoes aged 3 to 5 days emerging from larvae collected from the field. Seven insecticides (deltamethrin, permethrin, DDT, bendiocarb, propoxur, fenitrothion and malathion) were evaluated. The presence of target site mutation conferring knockdown (kdr) resistance was investigated using TaqMan assay, and mosquito species were identified using SINE-PCR. Surveys on 81 retailers and 232 farmers were conducted to assess general knowledge and practices regarding agricultural pesticide usage.
resultsHigh resistance intensity to pyrethroids was observed with a high frequency of the kdr allele 1014F and low frequency of the kdr 1014S allele. The level of susceptibility of An. gambiae (s.l.) to pyrethroids and carbamates was found to decrease with time (from > 34% in 2017 to < 23% in 2019 for deltamethrin and permethrin and from 97% in 2017 to < 86% in 2019 for bendiocarb). Both An. gambiae (s.s.) and An. coluzzii were recorded. Over 150 pesticides and fertilizers were sold by retailers for agricultural purposes in the city of Yaoundé. Most farmers do not respect safety practices. Poor practices including extensive and inappropriate application of pesticides as well as poor management of perished pesticides and empty pesticide containers were also documented.
conclusionsThe study indicated rapid evolution of insecticide resistance and uncontrolled usage of pesticides by farmers in agriculture. There is an urgent need to address these gaps to improve the management of insecticide resistance.
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