Table 1 Larvicidal activity of Cyathocline purpurae, Blumea lacera, Neanotis montholonii, and N. lancifolia extracts against the 3rd instar larvae of A. aegypti. LC₅₀ and LC₉₀ values are expressed in mg/mL

C. purpurae

24

12±2.30

18.66±3.52

33.33±3.52

32±0

0.72

16.7

48

20±2.30

36±2.30

42.66±1.33

70.66±1.33

0.18

1.171

72

32±8

54.66±7.05

72±0

81.33±1.33

0.088

0.553

B. lacera

24

6.66±1.33

9.33±1.33

10.66±1.33

22.66±1.33

7.349

1264.373

48

13.33±1.33

22.66±2.66

22.66±1.33

30.66±1.33

2.457

829.637

72

20±2.30

36±2.30

38.66±5.81

45.33±1.33

0.758

294.898

N. montholonii

24

0±0

0±0

4±0

6.66±1.33

–

–

48

5.33±1.33

5.33±1.33

12±0

16±0

–

–

72

13.33±5.33

12±4

17.33±5.33

20±4

–

–

N. lancifolia

24

9.33±5.33

8±0

12±0

12±0

–

–

48

16±4.61

9.33±1.33

16±0

17.33±3.52

–

–

72

16±4.61

13.33±1.33

30.66±10.91

33.33±4.80

–

–