Evidence of insecticide resistance selection in wild Anopheles coluzzii mosquitoes due to agricultural pesticide use

Table 1 Resistance ratio of wild Anopheles coluzzii populations from non-agricultural (Vitre) and agricultural areas (Tiassale and Gagnoa) exposed to three neonicotinoids

Localities	Insecticides	KDT50 (95% CI) in minutes		Resistance ratio*
Localities	Insecticides	Kisumu	Wild strains	Resistance ratio*
Vitre	Acetamiprid	13.7 (10.47–16.68)	15.52 (13.6–18.013)	1.130
Vitre	Imidachloprid	18.2 (14.95–21.88)	104.6 (77.2–197.7)	5.747
Tiassale	Acetamiprid	13.7 (10.47–16.68)	20.9 (14.14–25.7)	1.526
Tiassale	Imidachloprid	18.2 (14.95–21.88)	111.6 (78.3–247.4)	6.132
Gagnoa	Acetamiprid	13.7 (10.47–16.68)	15.7 (11.6–19.07)	1.062
Gagnoa	Imidachloprid	18.2 (14.95–21.88)	1 knock down only after 1 h	+++

KDT₅₀: The time necessary to allow 50% of test mosquito populations to be knocked down. Determined using the PoloPlus software 1.0 via log-probit analysis
*Resistance ratio (RR) calculated as the KDT₅₀ of the wild strain divided by the KDT₅₀ of the susceptible Kisumu strain
+++ could not be calculated, indefinite

ISSN: 2049-9957