Table 3 Mean (±SE) numbers of Culex spp. larvae and pupae sampled pre- and post-treatment with larvicides in temporary pools at San Simón beach, Mazatán municipality, Chiapas, Mexico

Pre-treatment

-5

26.0 ± 12.7^a

49.5 ± 26.6^a

5.7 ± 2.9^b

-4

44.0 ± 30.6^ab

105.8 ± 56.2^a

3.5 ± 1.3^bc

-3

18.0 ± 7.0^a

185.5 ± 129.8^a

71.3 ± 61.9^a

-2

74.3 ± 45.9^ab

125.8 ± 73.1^a

17.3 ± 6.0^bc

-1

135.3 ± 84.3^a

125.3 ± 67.6^a

36.5 ± 7.6^a

Post-treatment

1

2.8 ± 2.4^b

0.0 ± 0.0^b

0.0 ± 0.0^b

2

15.5 ± 12.9^a

0.0 ± 0.0^b

0.0 ± 0.0^b

3

51.5 ± 35.8^b

0.0 ± 0.0^c

0.0 ± 0.0^c

4

45.5 ± 36.3^a

0.0 ± 0.0^b

0.0 ± 0.0^b

5

13.0 ± 7.3^a

0.0 ± 0.0^b

0.0 ± 0.0^b

6

30.5 ± 29.5^b

0.0 ± 0.0^c

0.8 ± 0.5^bc

7

19.5 ± 14.2^b

0.0 ± 0.0^c

0.8 ± 0.8^c

8

8.8 ± 6.9^b

0.0 ± 0.0^c

6.8 ± 4.5^b

9

26.5 ± 18.5^a

0.0 ± 0.0^b

7.8 ± 5.7^ab

10

28.8 ± 17.0^a

0.0 ± 0.0^b

19.3 ± 9.9^a

11

23.5 ± 17.5^ab

0.0 ± 0.0^c

47.5 ± 16.8^a

12

28.0 ± 17.2^a

0.0 ± 0.0^b

54.3 ± 20.7^a

13

46.0 ± 34.2^b

0.0 ± 0.0^c

184.8 ± 86.5^a

14

136.3 ± 112.9^b

0.0 ± 0.0^c

327.8 ± 116.4^a

15

125.3 ± 76.8^a

0.0 ± 0.0^c

228.8 ± 77.4^a

20

22.5 ± 15.7^a

2.7 ± 2.7^b

50.8 ± 26.6^a