Sugar-fermenting yeast as an organic source of carbon dioxide to attract the malaria mosquito Anopheles gambiae

Malaria Journal

Table 4 Effect of CO₂ flow rate on trap catches during screen house experiments

CO₂ flow rate (ml/min)	Total number caught		χ²-test	N	Mean % caught (± sem)¹
CO₂ flow rate (ml/min)	ind. CO₂	no odour	χ²-test	N	Mean % caught (± sem)¹
0	22	16	P = 0.33	200	19.0 ± 3.0
25	86	64	P = 0.07	400	37.5 ± 6.1
60	100	22	P < 0.001	400	30.5 ± 8.0
100	177	42	P < 0.001	400	54.8 ± 7.6
250	126	32	P < 0.001	400	39.5 ± 4.9
500	71	47	P = 0.03	400	29.5 ± 4.6

Ind. = industrial
N = total number of mosquitoes released
¹ Mean percentage caught expressed as the number of female mosquitoes caught in the two MM-X traps together divided by the number of mosquitoes that flew out of the release cage.
Underlined number: significant higher catch (χ²-test, P < 0.05)

ISSN: 1475-2875