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Table 1 Molluscicide treatment impact in different snail density groups by 3 days, 7 days and 15 days post spraying

From: Optimizing molluscicide treatment strategies in different control stages of schistosomiasis in the People’s Republic of China

 

3 DAYS

7 DAYS

15 DAYS

Spray times

Snail density group

Total No. Snails (10 frames)

No. Live snails (10 frames)

Mortality (%)

Adjusted mortality (%)

Total No. Snails (10 frames)

No. live snails (10 frames)

Mortality (%)

Adjusted Mortality (%)

Total No. Snails (10 frames)

No. live snails (10 frames)

Mortality (%)

Adjusted mortality (%)

1

H

156

71

54.49

52.83

161

66

59.01

57.40

164

73

55.49

53.93

 

M

61

19

68.85

67.72

73

35

52.05

50.17

76

26

65.79

64.59

 

L

14

7

50.00

48.18

20

9

55.00

53.24

17

10

41.18

39.11

 

C

57

55

3.51

 

53

51

3.77

 

59

57

3.39

 

2

H

167

72

56.89

56.10

168

55

67.26

66.00

152

49

67.76

66.55

 

M

45

19

57.78

57.01

70

28

60.00

58.46

57

26

54.39

52.66

 

L

23

10

56.52

55.73

21

8

61.90

60.44

19

5

73.68

72.69

 

C

56

55

1.79

 

54

52

3.70

 

55

53

3.64

 

3

H

142

43

69.72

68.48

179

44

75.42

73.97

154

52

66.23

64.88

 

M

53

10

81.13

80.36

63

11

82.54

81.51

63

18

71.43

70.29

 

L

18

5

72.22

71.09

24

7

70.83

69.12

28

7

75.00

74.00

 

C

51

49

3.92

 

54

51

5.56

 

52

50

3.85

 

4

H

136

27

80.15

79.37

166

24

85.54

85.03

168

34

79.76

79.40

 

M

57

7

87.72

87.24

66

8

87.88

87.45

70

17

75.71

75.28

 

L

25

4

84.00

83.37

17

2

88.24

87.82

28

5

82.14

81.82

 

C

53

51

3.77

 

58

56

3.45

 

57

56

1.75

 
  1. Note: H = high density group, M = median density group, L = low density group.