Table 8.
Lethal mortality response (LC50) of Lygus lineolaris bioassayed using glass vial and diet cup with the insecticide sulfoxaflor at different concentrations
| Bioassay (B)-No. | Concentration response (μg per vial or diet cup) | |||||||
|---|---|---|---|---|---|---|---|---|
| n | Slope ± SE | LC50 (95% CI)a | Probit trend | RR50 (95% CI)d | ||||
| Test for slopeb | Test for GoFc | |||||||
| Χ 2 | P > Χ 2 | Χ 2 | P > Χ 2 | |||||
| B1-Diet | 180 | 1.85 ± 0.53 | 3.20 (09.01–4.05) | 12.15 | 0.0005 | 0.71 | 0.5418 | 1.38 (0.91–7.26) |
| B2-Diet | 180 | 1.59 ± 0.56 | 7.85 (2.08–4.75) | 7.97 | 0.0048 | 2.35 | 0.0696 | 3.39 (1.33–6.79) |
| B3-Diet | 180 | 0.56 ± 0.15 | 7.94 (2.08–15.36) | 12.45 | 0.0004 | 0.50 | 0.6786 | 3.43 (0.31–6.79) |
| B4-Diet | 180 | 0.88 ± 0.22 | 8.39 (1.91–28.01) | 15.87 | <0.0001 | 0.69 | 0.5538 | 3.61 (1.58–7.34) |
| B5-Diet | 180 | 0.30 ± 0.74 | 9.09 (3.79–25.44) | 16.49 | <0.0001 | 0.47 | 0.6993 | 3.95 (0.58– 4.71) |
| B6-Diet | 180 | 0.66 ± 0.19 | 2.37 (0.05–14.01) | 11.37 | 0.0007 | 0.65 | 0.5806 | 1.06 (0.89–9.63) |
| B7-Diet | 180 | 0.42 ± 0.08 | 2.31 (0.63–9.91) | 26.68 | <0.0001 | 0.30 | 0.8239 | 1 |
| B8-Diet | 180 | 0.76 ± 0.29 | 8.25 (-) | 6.79 | 0.0092 | 2.43 | 0.0629 | 3.57 (0.63–5.56) |
| B9-Diet | 180 | 0.61 ± 0.13 | 2.52 (6.76–20.23) | 21.24 | <0.0001 | 0.53 | 0.8588 | 1.07 (0.05–5.35) |
| B10-Diet | 180 | 0.50 ± 0.17 | 4.32 (21.77–524.60) | 8.17 | 0.0043 | 0.28 | 0.8361 | 1.89 (0.83–11.01) |
| B11-Diet | 180 | 0.47 ± 0.10 | 8.52 (2.23–17.36) | 15.23 | <0.0001 | 0.99 | 0.3921 | 3.70 (0.62–5.24) |
| B1-Vial | 180 | 0.53 ± 0.31 | 3.13 (-) | 2.86 | 0.0911 | 4.53 | 0.0035 | 143.91 (0.44–46,766.95) |
| B2-Vial | 180 | 2.05 ± 3.46 | 3.73 (-) | 0.52 | 0.4699 | 0.25 | 0.8591 | 288.56 (1.50–55,532.61) |
| B3-Vial | 180 | 0.20 ± 0.08 | 0.02 (2.13E-13–0.25) | 5.55 | 0.0185 | 0.28 | 0.8398 | 1 |
| B4-Vial | 180 | 0.89 ± 0.22 | 6.17 (2.75–9.48) | 16.37 | <0.0001 | 0.92 | 0.4282 | 484.12 (2.98–78,518.96) |
| B5-Vial | 180 | 1.10 ± 0.20 | 1.28 (0.84–1.79) | 30.23 | <0.0001 | 0.88 | 0.4458 | 109.64 (0.69–17,423.16) |
| B6-Vial | 180 | 0.73 ± 0.13 | 6.95 (3.99–10.83) | 30.35 | <0.0001 | 1.17 | 0.3192 | 536.27 (3.33–86,183.4) |
| B7-Vial | 180 | 0.74 ± 0.41 | 2.51 (-) | 3.19 | 0.0739 | 7.86 | <0.0001 | 191.47 (0.88–41,495.32) |
| B8-Vial | 180 | 0.91 ± 0.68 | 1.85 (-) | 1.78 | 0.1819 | 5.63 | 0.0007 | 95.53 (0.32–28,784.28) |
| B9-Vial | 180 | 0.72 ± 0.11 | 1.47 (0.89–2.18) | 38.8 | <0.0001 | 0.22 | 0.8780 | 132.25 (0.83–21,130.05) |
| B10-Vial | 180 | 0.51 ± 0.12 | 1.12 (0.23–2.57) | 17.62 | <0.0001 | 0.80 | 0.4929 | 24.68 (0.12–4,897.20) |
| B11-Vial | 180 | 0.57 ± 0.16 | 3.50 (0.00–20.30) | 12.23 | 0.0005 | 2.55 | 0.0536 | 211.87 (1.19–37,563.79) |
aLC50 and RR50 values are in μg per vial or diet cup; mortality was scored at 72 h.
bTest for slope significance indicates dose affects mortality.
cTest for goodness-of-fit (GoF) significance indicates error from probit trend is greater than expected for simple binomial response.
dRR50 (resistance ratio) and 95% CI calculated using formula from Robertson and Priestler (1992). Differences amongst SR50 values are significant if 95% CI do not include 1.0. RR50 compare the LC50s among the highest LC50 as a control.
(-)Values for CI not calculated.