Table 3 Mean percentage repellency with the standard error and repellency class of Macrotermes carbonarius and Globitermes sulphureus extracts against Periplaneta americana.

Concentration of M. carbonarius extract (mg/ml)

5

− 19.33 ± 1.76^a

26.67 ± 2.40^b

49.33 ± 1.33^c

14.67 ± 1.76^d

44.00 ± 2.31^e

10

7.33 ± 1.76^ab

24.67 ± 1.76^b

69.33 ± 2.40^c

30.67 ± 1.33^d

36.67 ± 2.44^e

15

13.33 ± 2.67^a

41.33 ± 1.33^b

45.33 ± 1.33^c

− 19.33 ± 1.33^d

6.00 ± 1.15^e

20

52.67 ± 1.76^a

22.67 ± 2.67^b

49.00 ± 2.52^c

− 19.33 ± 0.67^d

71.00 ± 2.51^e

25

20.00 ± 2.31^a

30.67 ± 1.20^b

62.67 ± 2.67^c

− 14.33 ± 0.88^d

66.67 ± 3.53^e

30

11.33 ± 2.40^ab

22.67 ± 2.67^b

65.33 ± 1.16^c

− 27.00 ± 1.20^d

− 5.33 ± 1.33^e

Mean PR (%)

16.44

28.61

56.83

0.00

98.33

Repellency Class

Nonrepellent

II

III

Nonrepellent

V

Concentration of G. sulphureus extract (mg/ml)

5

10.67 ± 1.33^a

32.00 ± 1.15^b

64.67 ± 1.76^c

32.00 ± 2.00^d

44.00 ± 2.31^e

10

− 5.00 ± 1.53^a

52.67 ± 1.76^ab

71.33 ± 0.67^b

82.00 ± 3.06^c

36.67 ± 3.33^d

15

− 24.00 ± 2.31^a

55.33 ± 0.67^b

78.67 ± 1.33^c

87.00 ± 1.00^d

6.00 ± 1.15^e

20

− 21.33 ± 1.33^a

42.00 ± 1.15^b

64.33 ± 2.33^c

89.67 ± 1.20^d

71.00 ± 1.00^e

25

− 24.00 ± 4.00^a

26.67 ± 1.33^b

66.00 ± 2.00^c

84.00 ± 0.00^d

66.67 ± 3.53^e

30

− 31.33 ± 0.67^a

34.00 ± 1.15^b

67.00 ± 1.00^c

98.67 ± 1.33^d

− 5.33 ± 1.33^e

Mean PR (%)

0.00

40.33

68.89

78.56

98.33

Repellency Class

Nonrepellent

III

IV

IV

V