Table 2 Synergism of methomyl toxicity by the enzyme inhibitors in different strains of Musca domestica.

From: Monitoring resistance to methomyl and synergism in the non-target Musca domestica from cotton fields of Punjab and Sindh provinces, Pakistan

Strain

Methomyl

n

LD50 (µg fly−1)

Fit of probit line

SR (95% FL)*

Slope (SE)

χ2

df

P

Lab-susceptible

 + PBO

480

0.72 (0.54–0.95)

2.29 (0.19)

5.61

5

0.35

1.07 (0.86–1.37)

 + DEF

480

0.78 (0.66–0.94)

2.07 (0.18)

3.88

5

0.57

0.99 (0.78–1.26)

Bhakkar

 + PBO

420

24.33 (17.03–38.53)

1.76 (0.21)

3.34

4

0.50

2.97 (2.15–4.11)

 + DEF

420

26.74 (16.25–57.87)

2.06 (0.23)

7.85

4

0.10

2.70 (1.98–3.68)

Kasur

 + PBO

480

33.05 (28.02–39.29)

2.25 (0.34)

2.70

5

0.75

1.90 (1.47–2.46)

 + DEF

480

32.21 (27.74–37.58)

2.66 (0.23)

3.17

5

0.67

1.95 (1.52–2.50)

Jhang

 + PBO

420

33.15 (27.70–39.74)

2.12 (0.31)

2.11

4

0.72

2.42 (1.81–3.24)

 + DEF

420

24.47 (13.94–40.21)

2.32 (0.24)

8.10

4

0.09

3.28 (2.46–4.36)

Rajanpur

 + PBO

420

20.40 (16.55–24.55)

2.04 (0.22)

0.12

4

0.99

4.27 (3.18–5.74)

 + DEF

420

29.17 (23.98–35.30)

1.95 (0.21)

0.89

4

0.93

2.99 (2.23–4.01)

Lodhran

 + PBO

420

77.00 (60.40–95.29)

1.44 (0.19)

1.75

4

0.78

1.62 (1.16–2.26)

 + DEF

420

67.61 (49.38–92.75)

2.57 (0.25)

4.15

4

0.39

1.84 (1.40–2.41)

Bahawalpur

 + PBO

420

53.88 (32.84–83.94)

2.25 (0.19)

5.64

4

0.23

2.26 (1.77–2.89)

 + DEF

420

36.84 (28.74–47.20)

3.06 (0.46)

5.97

4

0.20

3.31 (2.64–4.15)

Bahawalnagar

 + PBO

420

75.07 (62.30–79.98)

1.95 (0.17)

1.26

4

0.87

1.54 (1.19–2.01)

 + DEF

420

66.67 (49.23–79.13)

2.21 (0.19)

5.75

4

0.22

1.74 (1.35–2.25)

D.G. Khan

 + PBO

420

18.14 (13.55–24.30)

2.67 (0.23)

7.04

4

0.13

7.51 (5.74–9.82)

 + DEF

420

29.17 (22.83–36.74)

2.44 (0.22)

4.22

4

0.38

4.66 (3.55–6.14)

R.Y. Khan

 + PBO

420

30.13 (22.35–41.48)

2.55 (0.32)

7.31

4

0.12

1.42 (1.12–1.78)

 + DEF

420

26.57 (16.48–45.34)

2.25 (0.19)

8.70

4

0.07

1.60 (1.26–2.04)

Mianwali

 + PBO

420

18.27 (15.08–22.02)

1.88 (0.17)

3.49

4

0.48

1.54 (1.20–1.97)

 + DEF

420

16.39 (13.80–19.36)

2.22 (0.20)

2.65

4

0.62

1.71 (1.35–2.17)

Toba Tek Singh

 + PBO

420

17.54 (10.69–28.34)

2.27 (0.41)

8.04

4

0.09

6.71 (5.28–8.54)

 + DEF

420

24.71 (16.69–37.56)

2.72 (0.23)

9.03

4

0.06

4.77 (3.79–5.99)

Muzaffargarh

 + PBO

420

6.67 (4.90–8.88)

2.50 (0.22)

6.47

4

0.17

7.06 (5.58–8.94)

 + DEF

420

8.81 (6.90–11.22)

2.56 (0.22)

4.78

4

0.31

5.35 (4.24–6.74)

Layyah

 + PBO

420

28.62 (21.95–37.87)

2.33 (0.14)

5.26

4

0.26

1.72 (1.38–2.14)

 + DEF

420

23.31 (14.80–37.75)

2.54 (0.31)

8.95

4

0.06

2.11 (1.70–2.61)

Vehari

 + PBO

480

15.50 (11.95–20.17)

1.95 (0.16)

6.10

5

0.30

3.21 (2.48–4.15)

 + DEF

420

13.48 (11.44–15.94)

2.26 (0.19)

3.45

4

0.49

3.65 (2.87–4.74)

Sukkur

 + PBO

480

42.72 (34.05–53.30)

2.17 (0.17)

5.10

5

0.40

3.20 (2.49–4.12)

 + DEF

420

40.99 (32.64–51.39)

2.49 (0.21)

4.11

4

0.39

3.34 (2.62–4.26)

Khairpur

 + PBO

480

40.89 (31.36–51.25)

2.10 (0.18)

4.46

5

0.49

1.83 (1.42–2.35)

 + DEF

480

34.84 (21.26–52.56)

1.99 (0.18)

8.78

5

0.12

2.14 (1.66–2.77)

Jamshoro

 + PBO

480

17.27 (14.57–20.34)

2.24 (0.19)

1.26

5

0.94

2.93 (2.28–3.77)

 + DEF

480

23.64 (1.68–2.74)

2.41 (0.37)

2.98

5

0.70

2.14 (1.68–2.74)

Ghotki

 + PBO

480

19.11 (13.98–26.44)

2.27 (0.17)

8.11

5

0.15

2.35 (1.81–3.06)

 + DEF

480

14.43 (12.37–16.85)

2.46 (0.20)

2.51

5

0.77

3.11 (2.41–4.03)

Sanghar

 + PBO

480

16.31 (10.97–22.97)

1.52 (0.14)

7.51

5

0.19

4.93 (3.71–6.56)

 + DEF

480

22.14 (16.48–29.43)

1.94 (0.16)

7.26

5

0.20

3.63 (2.82–4.68)

Dadu

 + PBO

420

20.29 (13.43–24.61)

1.97 (0.18)

9.04

4

0.06

1.44 (1.11–1.88)

 + DEF

420

13.07 (6.98–17.33)

2.26 (0.21)

7.37

4

0.12

2.24 (1.74–2.89)

  1. *Synergism ratio.
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