Table 1. Escape responses of Aedes aegypti ¹ to different concentrations and coverage of alphacypermethrin under laboratory conditions.

				No. escaping (mean2 ± SE)
Alphacypermethrin concentration (nmoles/cm2)	SAC3 (%)	No. of mosquitoes Treatment	No. of mosquitoes Control	Treated	Control	% escaping4 (mean ± SE)	P 5	P 6
½FAR7 (3.6)	25	119	119	0.0±0.0	0.2±0.2	8±4a	0.06	<0.01
	50	118	119	0.2±0.2	0.5±0.3	8±4a	0.02	<0.01
	75	118	118	0.2±0.2	0.0±0.0	8±5a	0.06	0.30
	100D	118	116	0.2±0.2	0.0±0.0	20±4a	<0.01	<0.01
	100L	117	121	1.8±0.6	0.5±0.5	24±6a	<0.01	0.36
	P 8			-	-	0.05
FAR (7.2)	25	123	120	0.3±0.2	0.0±0.0	35±6ab	<0.01
	50	118	120	0.5±0.2	0.3±0.2	35±5ab	<0.01
	75	118	125	0.7±0.3	0.2±0.2	14±4b	<0.01
	100D	119	118	0.8±0.7	0.2±0.2	49±6a	<0.01
	100L	108	116	6.5±0.6	5.2±1.0	36±11ab	0.01
	P			-	-	0.01

¹Four to seven day-old females, non-blood-fed, 24 hour sugar starved (PERU).

²For each trial (n = 6 replicates).

³Surface area coverage (SAC) of treated material.

⁴For each trial percentage escaping after correction based on escape in the control and knockdown in the metal test chambers using Abbott's formula. Means in the same column followed by the same letter were not significantly different. Multiple comparisons of means were done using Scheffe's test (α = 0.05).

⁵P values are from Wilcoxon 2-sample test for difference between the number escaping in a chemical treatment chamber and an acetone treatment (control) chamber.

⁶P values are from t-test examining the effect of treatment concentrations on corrected percentage escaping at each treatment coverage.

⁷WHO recommended field application rate (FAR) = 7.2 nm/cm² or 0.03 g/m².

⁸P values are from one-way ANOVA examining the effect of treatment coverage on corrected percentage escaping at each treatment concentration.