Comparison of Repellency Effect of Mosquito Repellents for DEET, Citronella, and Fennel Oil
Table 2
Repellency and CPT of 5% citronella oil against Aedes albopictus in laboratory test.
Untreated
Repellency (%) (±SE) at hours after treatment
CPT (min)
0 h
1 h
2 h
(%)
(%)
(%)
V1
50
0
100
7
86
12
76
23
V2
17
0
100
5
70.6
11
35.3
13
V3
33
3
90.9
11
66.7
13
60.6
3
V4
19
0
100
7
63.2
14
26.3
23
V5
18
0
100
13
27.7
14
22.2
13
V6
34
0
100
7
79.4
13
61.8
13
V7
32
0
100
4
87.5
14
56.3
13
V8
23
1
95.7
8
65.2
16
30.4
3
V9
27
0
100
10
63
8
70.3
13
V10
43
3
93
7
83.7
11
74.4
3
V11
38
2
94.7
13
65.8
12
68.4
3
V12
35
2
94.3
11
68.6
12
65.7
3
V13
31
2
93.5
11
64.5
15
51.6
3
V14
33
0
100
12
63.6
17
48.5
13
V15
45
0
100
11
75.6
18
60
13
V16
52
0
100
9
82.7
17
67.3
13
V17
27
1
96.3
9
66.7
15
44.4
3
V18
68
0
100
13
80.9
17
75
13
V19
38
0
100
8
78.9
7
81.5
13
V20
42
0
100
5
88.1
9
78.6
13
AVG
35.25 ± 2.81
0.70 ± 0.24
97.92 ± 0.69
9.05 ± 0.63
71.42 ± 3.05
13.25 ± 0.69
57.73 ± 4.03
10.50 ± 1.20
The number () of mosquitoes landing on arm of each volunteer was counted per hour for 2 h. Repellency () was calculated each hour and complete protection time (CPT) was determined by calculating the number of minutes from the time of repellent application to the first mosquito landing.
