The impact of different sprayable surfaces on the effectiveness of indoor residual spraying using a micro encapsulated formulation of lambda-cyhalothrin against Anopheles gambiae s.s.

Table 1 Lambda-cyhalothrin concentration levels on the sprayed substrates

Substrate	Sample location*	mg/l	mg/m ²	Substrate	Sample location*	mg/l	mg/m ²
Cement blocks	B	2.22E-02	22	Limestone blocks	F	2.48E-02	25
Cement blocks	E	2.38E-02	24	Limestone blocks	A	2.18E-02	22
Cement blocks	F	2.23E-02	22	Iron sheet	C	2.20E-02	22
Mud daub	A	2.30E-02	23	Burnt bricks	B	2.19E-02	22
Mud daub	E	2.47E-02	25	Palm thatch	A	2.51E-02	25
Wood	B	2.15E-02	22	Palm thatch	D	2.23E-02	22
Wood	D	2.39E-02	24	White wash	C	2.32E-02	23
Oil paint	A	2.00E-02	20	White wash	A	2.36E-02	24
Oil paint	D	2.01E-02	20	White wash	B	2.17E-02	22

*The sample location refers to the level where the whatman paper was located. A = Upper, B = Middle, C = Lower levels of the 1^st replicate; D = Upper, E = Middle, F = Lower levels of the 2^nd replicate.

ISSN: 1756-3305