Field efficacy of a new deltamethrin long lasting insecticidal net (LifeNet©) against wild pyrethroid-resistant Anopheles gambiae in Benin

Table 4 Knockdown and mortality of susceptible An. gambiae (Kisumu strain) recorded after 3 min exposure under WHO cones on nets after washing and after field testing

Treatments	N mosquitoes tested	% KD after 60 min	% Mortality after 24 h
Untreated polyester net	49	0^a	0^a
Life Net unwashed	52	100^b	100^b
Life Net washed 20 times	54	100^b	100^b
Life Net washed 30 times	60	100^b	100^b
CTN 25 mg/m² washed just before exhaustion	53	94^b	81^c
CTN 25 mg/m² washed 20 times	57	63^c	60^d

CTN conventionally deltamethrin-treated nets. Values in the same column sharing different letter superscript differ significantly (χ² = 101, 15.65 and 6.04, df = 1, P = 0.000 and 0.014)

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