Table 5.
Performance of three formulated insecticide mixture products against one laboratory strain (Fort Dix) and three field-collected C. lectularius populations. Bed bug morality was recorded at 72 h.
| Spray | Population | Slope (±SE) | Lethal Concentration (%) | Performance Ratio | Model Fit | |||
|---|---|---|---|---|---|---|---|---|
| * LC50 (95% CI) | LC90 (95% CI) | ** PR50 | PR90 | χ2 | df | |||
| Transport GHP | Fort Dix | 2.9 ± 0.4 | 0.0002 (0.0002–0.0003) a | 0.0006 (0.0005–0.0009) a | - | - | 2.6 | 4 |
| Bayonne 2015 | 2.1 ± 0.3 | 0.51 (0.31–0.67) b | 1.13 (0.93–1.56) b | 2550 | 1883 | 9.3 | 4 | |
| Irvington | 1.1 ± 0.3 | 0.04 (0.01–0.08) c | 0.54 (0.25–4.29) bc | 200 | 900 | 9.6 | 4 | |
| Irvington 624-5G | 1.7 ± 0.2 | 0.45 (0.35–0.54) b | 1.21 (1.08–1.40) b | 2250 | 2017 | 19.1 | 4 | |
| Temprid SC | Fort Dix | 1.9 ± 0.4 | 0.0012 (0.0005–0.0023) a | 0.0055 (0.0028–0.0365) a | - | - | 8.2 | 4 |
| Bayonne 2015 | 2.0 ± 0.3 | 0.16 (0.12–0.22) b | 0.71 (0.47–1.39) b | 133 | 129 | 13.7 | 4 | |
| Irvington | 1.1 ± 0.2 | 0.03 (0.01–0.07) c | 0.41 (0.13–15.30) bc | 25 | 75 | 9.3 | 4 | |
| Irvington 624-5G | 2.6 ± 0.3 | 0.10 (0.08–0.12) d | 0.30 (0.23–0.41) c | 83 | 55 | 4.2 | 4 | |
| Tandem | Fort Dix | 1.2 ± 0.1 | 0.0004 (0.0003–0.0006) a | 0.0052 (0.0032–0.0096) a | - | - | 5.3 | 4 |
| Bayonne 2015 | 2.5 ± 0.4 | 0.58 (0.45–0.75) b | 1.01 (0.88–1.57) b | 1450 | 194 | 8.5 | 4 | |
| Irvington | 1.6 ± 0.2 | 0.08 (0.52–0.11) c | 0.52 (0.33–1.01) b | 200 | 100 | 4.9 | 4 | |
| Irvington 624-5G | 2.0 ± 0.0 | 0.24 (0.19–0.30) d | 1.02 (0.75–1.59) b | 600 | 196 | 3.2 | 4 | |
* LC50 or LC90 values of different populations followed different letters are significantly different based on non-overlapping values. ** PR (performance ratio based on LC): LC of resistant population/LC of Fort Dix population.