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. 2006 Jun 12;62(7):673–677. doi: 10.1002/ps.1230

Table 3.

Toxicity of tetrachlorvinphos to lesser mealworm adults from six strains

Strain n LC50(µg cm−2) (95% CI) LC95(µg cm−2) (95% CI) RR50 a RR95 b Slope (SE)
Denmark‐S 440 0.08 (0.07–0.10) 0.23 (0.17–0.42) — — 3.6 (0.6)
Kennebec 690 1.26 (1.01–1.65)d >1000 16* >4000 1.5 (0.2)d
Waycrossc 520 0.38 (0.31–0.49)d >1000 4.8* >4000 2.0 (0.2)d
Cayuga 640 0.13 (0.09–0.20) 0.73 (0.35–1.53) 1.6 3.2 2.2 (0.5)
Onondaga 580 0.18 (0.16–0.21) 0.77 (0.58–1.17) 2.3* 3.4* 2.6 (0.3)
Wayne 590 0.34 (0.28–0.41) 2.44 (1.69–4.18) 4.3* 11* 1.9 (0.2)
a

Resistance ratio at LC50 (i.e. LC50 resistant strain/LC50 Denmark‐S).

b

Resistance ratio at LC95 (i.e. LC95 resistant strain/LC95 Denmark‐S).

c

Cricket colony collection, all others (except Denmark‐S) are from caged‐layer poultry facilities.

d

Probit analysis was conducted using only the concentrations below the plateau of the line (see Fig. 1).

*

Significantly different from 1.0 based on non‐overlap of 95% CI.

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