Pesticidal and Mosquitocidal Activities of Clausena excavata Burm. F. (Rutaceae) against Spodoptera litura (Fab.) (Noctuidae: Lepidoptera) and Aedes aegypti L., Anopheles stephensi Liston, and Culex quinquefasciatus Say. (Diptera: Culicidae)
Table 1
Lethal activity of Clausena excavatadifferent extracts against 4th instar larvae of selected mosquitoes and pest species.
Solvent tested
Insects name
LC50 (ppm)
95% fiducial limit (ppm)
LC90 (ppm)
95% fiducial limit (ppm)
Slope
LCL
UCL
LCL
UCL
Hexane
A. aegypti
262.20
240.59
282.79
472.97
439.91
516.46
3.365
1.914
An. stephensi
258.21
235.40
279.69
480.47
445.52
526.99
3.212
0.854
C. quinquefasciatus
263.90
242.10
284.65
477.10
443.53
521.42
3.398
1.521
S. litura
266.55
244.99
287.17
477.97
444.70
521.75
3.359
1.014
Diethyl ether
A. aegypti
253.82
218.00
28638
465.63
417.09
540.90
3.369
2.795
An. stephensi
254.54
233.63
274.35
454.14
423.40
494.16
3.590
1.152
C. quinquefasciatus
263.58
242.55
283.69
467.99
436.06
509.06
3.480
1.071
S. litura
273.31
242.06
303.30
466.88
422.46
533.42
3.689
2.693
Dichloromethane
A. aegypti
266.44
227.29
302.85
473.43
420.07
560.78
3.490
3.571
An. stephensi
267.65
233.77
299.39
480.83
432.38
555.09
3.358
2.627
C. quinquefasciatus
267.75
237.58
296.38
467.01
423.98
530.23
3.578
2.370
S. litura
262.45
229.87
292.90
465.30
419.88
533.69
3.507
2.610
Ethyl acetate
A. aegypti
246.45
186.48
297.23
448.27
381.52
583.52
3.787
6.989
An. stephensi
256.62
205.36
302.17
461.18
398.77
577.35
3.525
5.574
C. quinquefasciatus
245.23
197.91
286.32
448.88
391.93
548.93
3.646
4.649
S. litura
251.38
195.04
300.01
459.06
393.23
587.89
3.598
6.188
Methanol
A. aegypti
227.23
151.99
285.55
413.84
343.53
576.90
4.258
10.001
An. stephensi
232.13
157.25
290.06
431.41
359.29
596.31
4.059
9.126
C. quinquefasciatus
227.90
165.87
277.51
419.39
356.23
547.07
3.995
7.232
S. litura
228.46
154.56
285.91
416.26
346.56
575.06
4.070
9.682
LC50: lethal concentration brings out 50% mortality and LC90: lethal concentration brings out 90% mortality. LCL: lower confidence limit; UCL: upper confidence limit; slope and chi-square.
