Experimental hut and bioassay evaluation of the residual activity of a polymer-enhanced suspension concentrate (SC-PE) formulation of deltamethrin for IRS use in the control of Anopheles arabiensis

Oxborough, Richard M; Kitau, Jovin; Jones, Rebecca; Mosha, Franklin W; Rowland, Mark W

doi:10.1186/s13071-014-0454-1

Table 4 Experimental hut summary results for wild free-flying An. Arabiensis during the 9 month efficacy trial

From: Experimental hut and bioassay evaluation of the residual activity of a polymer-enhanced suspension concentrate (SC-PE) formulation of deltamethrin for IRS use in the control of Anopheles arabiensis

Insecticide (Wall) substrate)	Outcome measure	Time after spraying (months)
Insecticide (Wall) substrate)	Outcome measure	April	May	June	July	August	September	October	December
Delta SC-PE 25 mg/m² (Mud)	Number Collected	76	88	69	252	791	439	225	30
	% Mortality	28	34	13	75	66	59	56	37
	95% CI	19-39	25-45	7-23	70-80	62-69	54-63	49-62	22-55
	% Blood-fed	71	64	36	19	21	31	39	53
	% Blood-feeding inhibition	19	35	60	68	54	58	45	45
Delta WG 25 mg/m² (Mud)	Number Collected	65	88	32	338	850	397	234	30
	% Mortality	40	43	19	72	67	71	63	23
	95% CI	29-52	33-54	9-36	67-77	64-70	66-75	56-69	12-42
	% Blood-fed	77	52	34	17	25	21	27	80
	% Blood-feeding inhibition	13	47	62	71	46	71	62	17
DDT WP 2000 mg/m² (Mud)	Number Collected	20	48	102	348	850	444	174	23
	% Mortality	40	29	30	66	70	60	59	44
	95% CI	21-62	18-43	22-40	61-71	67-73	56-65	52-66	25-64
	% Blood-fed	60	42	37	20	29	33	33	61
	% Blood-feeding inhibition	32	57	58	66	37	55	54	36
Delta SC-PE 25 mg/m² (Concrete)	Number Collected	83	94	103	343	937	476	200	57
	% Mortality	48	29	26	80	68	65	67	28
	95% CI	38-59	21-39	19-36	75-84	65-71	60-69	60-73	18-41
	% Blood-fed	75	67	53	20	22	31	36	39
	% Blood-feeding inhibition	15	32	40	66	52	58	49	59
Delta WG 25 mg/m² (Concrete)	Number Collected	75	65	44	323	947	383	272	26
	% Mortality	65	37	34	83	62	70	62	39
	95% CI	54-75	26-49	22-49	79-87	59-65	65-74	56-67	22-58
	% Blood-fed	64	49	48	17	19	22	33	23
	% Blood-feeding inhibition	27	50	46	71	59	70	54	76
DDT WP 2000 mg/m² (Concrete)	Number Collected	69	83	109	371	1105	454	233	26
	% Mortality	42	29	34	70	61	62	51	27
	95% CI	31-54	20-40	26-43	66-75	58-64	57-66	44-57	13-47
	% Blood-fed	59	61	47	18	21	28	34	54
	% Blood-feeding inhibition	33	38	47	69	54	62	52	44
Untreated (Mud)	Number Collected	50	57	47	161	255	111	86	23
	% Mortality	16	4	6	17	11	2	1	4
	95% CI	8-29	1-13	2-18	12-24	7-15	1-7	0-8	1-25
	% Blood-fed	88	98	89	59	46	73	71	96

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ISSN: 1756-3305

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