Table 1 Toxicological profiles to deltamethrin for colonies of T. infestans: *susceptible (S), *reduced susceptibility (RS), *resistant (R) and reciprocally cross progenies: ♀S x ♂RS; ♂S x ♀RS; ♀S x ♂R; ♂S x ♀R

*S

300

1.97+/− 0.05

0.51 (6)

0.26 (0.21–0.32)

-

-

-

*RS

390

4.43+/− 0.02

2.41 (10)

2.09 (1.93–2.27)

5.04

*R

360

2.25 +/− 0.04

3.05 (9)

54.23 (45.54–63.32)

129.12

♀S x ♂RS

210

5.44 +/− 0.76

5.34 (4)

0.65 (0.55–0.76)

2.64 (2.12–3.29)

−0.08

−1.37

♂S x ♀RS

300

4.33 +/− 0.43

4.30 (7)

1.30 (1.18–1.43)

5.27 (4.22–6.52)

0.54

−8.07

♀S x ♂R

360

4.44 +/− 0.46

3.18 (7)

0.74 (0.67–0.81)

2.99 (2.39–3.73)

−0.61

0.00

♂S x ♀R

210

5.86 +/− 0.78

3.17 (6)

3.97 (3.62–4.30)

16.06 (12.93–19.94)

0.02

0.76