Mosquito strains

Intercept

Σλοπε ± ΣΕ LC50 (g/litre) LC95 (g/litre) χ2 (df) RR (at LC50)c

RR (at LC95)c

Inbreeding (F2)a
F1xF1

6.30

 1.15 ± 0.15 0.075
(0.091-0.06)		 2.015
(3.29-1.23)		 5.73(6) 15.0
(22.75-10.0)

26.5
(65.8-11.18)
Reciprocal and back-crosses
F1xGR		 5.77 1.49 ± 0.18 0.305
(0.36-0.26)		 3.88
(5.56-2.70)		 7.71(6) 61.0
(90.0-43.3)		 51.1
(111.2-24.55)
F1xGR 5.77 1.59 ± 0.19 0.33
(0.38-0.28)		 3.55
(4.93-2.56)		 1.84(6) 66.0
(95.0-43.3)		 46.7
(98.6-23.27
F1xMS 6.83 1.34 ± 0.17 0.04
(0.05-0.036)		 0.73
(1.09-0.48)		 5.70(6) 8.0
(12.5-6.0)		 9.6
(21.8-4.36)
F1xMS 6.85 1.34 ± 0.17 0.042
(0.05-0.035)		 0.71
(1.06-0.47)		 4.88(6) 8.4
(12.25-5.83)		 9.34
(21.2-4.27)
Inbreeding (F3)
F2xF2		 6.59 1.05 ± 0.15 0.029
(0.037-0.024)		 1.12
(1.94-0.65)		 12.32(6) 5.92
(9.25-4.0)		 16.7
(41.28-6.77)
Reciprocal and back-crosses
F2xGR		 5.56 1.42 ± 0.18 0.401
(0.47-0.34)		 5.81
(8.58-3.93)		 2.58(6) 81.8
(117.5-56.7)		 86.72
(182.55-40.94)
F2xGR 5.54 1.43 ± 0.18 0.42
(0.49-0.36)		 5.90
(8.67-4.02)		 3.54(6) 85.7
(122.5-60.0)		 88.1
(184.5-41.9)
F2xMS 6.76 0.96 ± 0.16 0.015
(0.025-0.009)		 0.77
(2.64-0.22)		 24.52(7) 3.06
(6.25-1.50)		 11.49
(56.17-2.29)
F2xMS 6.63 0.95 ± 0.15 0.019
(0.028-0.013)		 1.04
(2.70-0.39)		 14.14(7) 3.88
(7.0-2.17)		 15.5
(57.4-4.06)
Inbreeding (F4)
F3xF3		 6.62 1.08 ± 0.15 0.03
(0.04-0.026)		 1.06
(1.80-0.63)		 11.31(6) 3.90
(5.91-2.86)		 11.78
(30.0-4.92)
Reciprocal and back-crosses
F2xGR		 5.62 1.52 ± 0.19 0.39
(0.46-0.33)		 4.69
(6.73-3.28)		 5.05(6) 5.06
(69.7-36.3)		 52.11
(112.2-25.6)
F2xGR 5.57 1.60 ± 0.19 0.44
(0.51-0.38)		 4.67
(6.56-3.32)		 3.65(6) 5.71
(77.3-41.76)		 51.9
(109.3-25.9)
F2xMS 6.76 1.00 ± 0.16 0.018
(0.027-0.011)		 0.77
(2.24-0.27)		 19.66(7) 0.23
(4.09-1.21)		 8.56
(37.3-2.11) 2.29)

F2xMS

6.69

 1.01 ± 0.13 0.021
(0.026-0.017)		 0.89
(1.50-0.53)		 10.22(7) 0.27
(3.94-1.87)

9.89
(25.0-4.14)
Table 2: Analysis of the Bacillus sphaericus resistance of various offsprings (inbreeds, reciprocals and back-crosses) from Culex quinquefasciatus larvae. A Progeny of three successive inbreeds, reciprocals and back-crosses developed from Bacillus sphaericus susceptible and resistant mosquito strains.