Electric nets and sticky materials for analysing oviposition behaviour of gravid malaria vectors

Malaria Journal

Table 2 The development of electrocuting nets as a tool to study the orientation behaviour of oviposition site seeking An. gambiae s.s

Treatment	Mean no. of mosquitoes/eggs (95% CI)	OR (95% CI)	p
Experiment: Evaluation of high and low energy settings for electrocuting nets
100% spark energy	9.0 (5.9 – 13.7)	1
50% spark energy	19.9 (13.2 – 30.0)	2.2 (1.8 – 2.8)	<0.001
Experiment: Comparison of average mosquitocollections on transparent sticky film boards close and away from one e-net
row 2 (>25 cm)	26.5 (16.15 – 43.49)	1
row 1 (<25 cm)	77.63 (62.36 – 96.63)	2.93 (2.08 – 4.13)	< 0.001
Experiment: Evaluation of attraction of gravid *An. gambiae* s.s. to transparent sticky films
without pond	29.4 (21.5 – 40.4)	1
with pond	47.1 (37.4 – 59.3)	1.6 (1.1 – 2.3)	0.012
site 4	15.3 (11.2 – 20.7)	1
site 2	38.4 (30.0 – 49.1)	2.5 (1.6 – 4.1)	<0.001
Experiment: Comparison of yellow, black and transparent sticky boards for the collection of gravid *An. gambiae* s.s.
Mosquitoes*
Transparent sticky film	24.6 (18.4 –32.9)	1^a
Sticky black fly-screen	17.3 (12.0 –25.1)	0.71 (0.39 – 1.26) ^a	0.240
Yellow sticky film	0.58 (0.32 –1.09)	0.02 (0.01 – 0.05) ^b	<0.001
Eggs*
Transparent sticky film	478 (356 – 643)	1^a
Sticky black fly-screen	469 (326 – 469)	0.98 (0.80 – 1.20) ^a	0.841
Yellow sticky film	712 (525 – 712)	1.50 (1.18 – 1.92) ^b	0.001
Experiment: Comparison of average mosquito collections on yellow sticky film boards mounted under a square of e-nets
row 2 (>25 cm)	5.1 (3.9 – 6.8)	1
row 1 (<25 cm)	48.1 (40.7 – 56.9)	9.4 (7.7 –11.4)	<0.001
inside the square	12 (9.6 – 15.0)	2.3 (1.8 – 3.0)	<0.001

Results from generalized linear models for individual experiments.
CI=confidence interval.
OR=odds ratio.
*Multiple comparisons of treatments: treatments denoted with same letter are not significantly different.

ISSN: 1475-2875