Table 2.
Susceptibility (based on knockdown time, KT50 and KT90) of 13 field-collected C. lectularius populations to topically applied acetamiprid at a discriminating dose of 186 ng per adult.
| Population | n | KT50
(min, 95% CI) |
KT90
(min, 95% CI) |
χ2 (df) | Slope ± SE | % Mean Mortality (±SE) at 72 h | * RR50 | RR90 |
|---|---|---|---|---|---|---|---|---|
| Fort Dix | 30 | 15 (13–18) | 46 (39–56) | 9.2 (11) | 2.692 ± 0.266 | 100 ± 0 | - | - |
| Aberdeen | 30 | 61 (51–76) | >4320 | 6.9 (12) | 1.694 ± 0.210 | 57 ± 3 | 4.1 | >93.9 |
| Bayonne | 30 | 37 (31–42) | 141 (110–200) | 4.8 (11) | 2.191 ± 0.220 | 100 ± 0 | 2.5 | 3.1 |
| Bayonne 2015 | 30 | 16 (12–19) | 80 (57–140) | 4.4 (7) | 1.814 ± 0.257 | 100 ± 0 | 1.0 | 1.7 |
| Canfield | 30 | 21 (17–24) | 75 (61–97) | 7.4 (12) | 2.290 ± 0.222 | 100 ± 0 | 1.4 | 1.6 |
| Cotton | 30 | 32 (28–39) | 126 (94–200) | 4.4 (10) | 2.159 ± 0.258 | 100 ± 0 | 2.1 | 2.7 |
| Dehart | 30 | 11 (7–14) | 65 (46–118) | 3.6 (7) | 1.636 ± 0.262 | 100 ± 0 | 1.0 | 1.4 |
| Hackensack | 30 | 28 (23–33) | 71 (54–119) | 15.5 (9) | 3.125 ± 0.360 | 100 ± 0 | 1.9 | 1.5 |
| Indy | 30 | 39 (35–44) | 115 (92–159) | 10.9 (12) | 2.716 ± 0.288 | 100 ± 0 | 2.6 | 2.5 |
| Irvington | 30 | 16 (8–24) | 82 (47–375) | 48.4 (11) | 1.804 ± 0.207 | 100 ± 0 | 1.1 | 1.8 |
| Irvington 624-5G | 30 | 26 (22–30) | 126 (96–188) | 14.1 (13) | 1.868 ± 0.204 | 100 ± 0 | 1.7 | 2.7 |
| Linden 2019 | 30 | >4320 | >4320 | - | - | 13 ± 3 | >288 | >93.9 |
| Masiello | 30 | 43 (36–50) | 239 (174–382) | 6.2 (16) | 1.711 ± 0.181 | 100 ± 0 | 2.9 | 5.2 |
| New Brunswick | 30 | 54 (46–65) | 249 (175–430) | 5.1 (10) | 1.934 ± 0.232 | 93 ± 3 | 3.6 | 5.4 |
* RR (resistance ratio based on KT): KT of field population/KT of Fort Dix strain.