Table 2 Levels of cross-resistance of Aphis glycines from field-collected SBA-MN1-2017 across different classes of insecticides; common name (IRAC classification).

From: Association of voltage-gated sodium channel mutations with field-evolved pyrethroid resistant phenotypes in soybean aphid and genetic markers for their detection

Insecticide

Population

na

LC50 (95% CI)

Slope ± SE

χ2 (df)b

RRc

Bifenthrin (pyrethroid)

SBA-ISU-B1

540

0.66 (0.52–0.81)

2.28 ± 0.37

11.18 (6)

33.90

SBA-MN1-2017

540

22.38 (16.18–28.59)

1.99 ± 0.40

8.13 (6)

Flonicamid (flonicamid)

SBA-ISU-B1

540

0.44 (0.22–0.65)

1.16 ± 0.29

4.49 (6)

0.97

SBA-MN1-2017

540

0.43 (0.25–0.61)

1.22 ± 0.25

6.99 (6)

Flupyradifurone (butenolides)

SBA-ISU-B1

840

0.07 (0.04–0.11)

0.65 ± 0.06

15.84 (10)

2.28

SBA-MN1-2017

840

0.16 (0.10–0.23)

0.83 ± 0.07

10.95 (10)

Sulfoxaflor (sulfoximines)

SBA-ISU-B1

540

0.02 (0.01–0.03)

1.07 ± 0.14

9.53 (6)

2.00

SBA-MN1-2017

540

0.04 (0.02–0.05)

1.07 ± 0.12

3.85 (6)

Spirotetramat (tetramic acid)

SBA-ISU-B1

540

55.07 (31.58–78.57)

1.02 ± 0.19

4.36 (6)

0.73

SBA-MN1-2017

540

40.71 (25.40–56.01)

0.95 ± 0.13

9.51 (6)

  1. aNumber of aphids tested.
  2. bChi-square (degrees of freedom).
  3. cResistance ratio (RR): LC50 of resistant SBA-MN1-2017 divided by LC50 of susceptible SBA-ISU-B1.