Table 4.
Toxicity of Detech® WP95 and Detech® Dust formulations expressed as LT50, LT95, and LT99 values for T. putrescentiae adults after exposure to five concentrations.
| Formulations | Concentration (g/m2) | N a | Slope ± SE b | t Ratio | H c
(d.f.) χ2 |
Chi-square) d | LT50 (h) (Confidence Intervals) e |
LT95(h) (Confidence Intervals) e |
LT99 (h) (Confidence Intervals) e |
|---|---|---|---|---|---|---|---|---|---|
| Detech® WP95 | 1 | 110 | 0.31 ± 0.04 | 6.73 | 0.33 | 37.53 | 22.13 (21.10–23.20) |
27.35 (25.84–29.92) |
29.52 (27.58–32.93) |
| 2.5 | 110 | 0.25 ± 0.03 | 7.45 | 0.53 | 58.07 | 19.003 (17.84–20.14) |
25.35 (23.71–27.90) |
27.98 (25.89–31.38) |
|
| 5 | 110 | 0.36 ± 0.05 | 6.39 | 0.39 | 42.38 | 15.49 (14.67–16.31) |
20.04 (18.88–21.84) |
21.932 (20.45–24.31) |
|
| 7.5 | 110 | 0.17 ± 0.02 | 8.95 | 1.186 | 128.11 | 13.60 (12.04–15.10) |
22.88 (20.69–26.17) |
26.730 (23.91–31.11) |
|
| 10 | 110 | 0.22 ± 0.03 | 7.27 | 0.99 | 107.16 | 7.22 (5.94–8.42) |
14.44 (12.90–16.71) |
17.43 (15.11–21.28) |
|
| Detech® Dust | 1 | 90 | 0.13 ± 0.01 | 7.49 | 0.90 | 79.30 | 15.13 (13.78–16.64) |
27.18 (24.45–31.29) |
32.17 (28.61–37.61) |
| 2.5 | 90 | 0.18 ± 0.02 | 8.20 | 0.83 | 73.35 | 11.15 (10.03–12.28) |
19.98 (18.16–22.54) |
23.63 (21.29–27.04) |
|
| 5 | 90 | 0.25± 0.03 | 7.70 | 0.65 | 57.76 | 10.24 (9.28–11.21) |
16.82 (15.38–18.90) |
19.55 (17.70–22.29) |
|
| 7.5 | 90 | 0.25 ± 0.03 | 7.42 | 0.56 | 49.56 | 8.41 (7.46–9.37) |
14.92 (13.46–17.06) |
17.61 (15.73–20.45) |
|
| 10 | 90 | 0.30 ± 0.04 | 7.09 | 0.71 | 62.55 | 8.05 (7.17–8.92) |
13.50 (12.21–15.40) |
15.75 (14.11–18.27) |
a Number of individuals treated, excluding controls, b t-ratio of the slope of regression test; t-ratio values greater than 1.96 indicate a significant regression, c heterogeneity factor equals the chi-square divided by the degrees of freedom; heterogeneity factor value less than 1.0 indicates that the log-dose–probit lines are within the 95% confidence limits and thus the model fits the data, d chi-square value, e numbers in brackets give the 95% confidence intervals.