Effects of larval exposure to sublethal doses of Bacillus thuringiensis var. israelensis on body size, oviposition and survival of adult Anopheles coluzzii mosquitoes.
Bacillus thuringiensis var. israelensis
Larval source management
Mosquito
Sublethal dose
Vector control
Journal
Parasites & vectors
ISSN: 1756-3305
Titre abrégé: Parasit Vectors
Pays: England
ID NLM: 101462774
Informations de publication
Date de publication:
16 May 2020
16 May 2020
Historique:
received:
03
03
2020
accepted:
11
05
2020
entrez:
18
5
2020
pubmed:
18
5
2020
medline:
30
1
2021
Statut:
epublish
Résumé
Application of the larvicide Bacillus thuringiensis var. israelensis (Bti) is a viable complementary strategy for malaria control. Efficacy of Bti is dose-dependent. There is a knowledge gap on the effects of larval exposure to sublethal Bti doses on emerging adult mosquitoes. The present study examined the effect of larval exposure to sublethal doses of Bti on the survival, body size and oviposition rate in adult Anopheles coluzzii. Third-instar An. coluzzii larvae were exposed to control and sublethal Bti concentrations at LC Exposure to LC Exposure of An. coluzzii larvae to sublethal Bti doses reduces longevity of resultant adults and is associated with larger adult size and unclear effect on oviposition. These findings suggest that anopheline larval exposure to sublethal Bti doses, though not recommended, could reduce vectorial capacity for malaria vector populations by increasing mortality of resultant adults.
Sections du résumé
BACKGROUND
BACKGROUND
Application of the larvicide Bacillus thuringiensis var. israelensis (Bti) is a viable complementary strategy for malaria control. Efficacy of Bti is dose-dependent. There is a knowledge gap on the effects of larval exposure to sublethal Bti doses on emerging adult mosquitoes. The present study examined the effect of larval exposure to sublethal doses of Bti on the survival, body size and oviposition rate in adult Anopheles coluzzii.
METHODS
METHODS
Third-instar An. coluzzii larvae were exposed to control and sublethal Bti concentrations at LC
RESULTS
RESULTS
Exposure to LC
CONCLUSIONS
CONCLUSIONS
Exposure of An. coluzzii larvae to sublethal Bti doses reduces longevity of resultant adults and is associated with larger adult size and unclear effect on oviposition. These findings suggest that anopheline larval exposure to sublethal Bti doses, though not recommended, could reduce vectorial capacity for malaria vector populations by increasing mortality of resultant adults.
Identifiants
pubmed: 32416733
doi: 10.1186/s13071-020-04132-z
pii: 10.1186/s13071-020-04132-z
pmc: PMC7229702
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
259Références
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