Table 3.
Susceptibility of Spodoptera frugiperda field populations to lambda-cyhalothrin, deltamethrin, and indoxacarb.
| Region | Insecticide | P | N | Slope ± SE | χ 2 (df) | LC50 (mg/L) | 95% FL (mg/L) | RR |
|---|---|---|---|---|---|---|---|---|
| Western | Lambda-cyhalothrin | SUS | 200 | 2.06 ± 0.34 | 1.55 (3) | 53.77 | 34.34–71.63 | 1 |
| KK | 200 | 3.09 ± 0.77 | 0.68 (3) | 143.37 | 104.41–170.45 | 2.67 | ||
| VH | 200 | 3.53 ± 0.82 | 1.02 (3) | 141.14 | 107.54–164.79 | 2.62 | ||
| BS | 200 | 2.12 ± 0.41 | 0.68 (3) | 147.45 | 113.38–187.44 | 2.74 | ||
| BN | 200 | 2.07 ± 0.56 | 0.13 (3) | 143.48 | 100.12–204.60 | 2.67 | ||
| Central | MR | 200 | 3.41 ± 0.78 | 0.81 (3) | 165.77 | 133.51–195.41 | 3.08 | |
| KA | 200 | 3.72 ± 0.84 | 0.99 (3) | 160 | 128.36–186.43 | 2.98 | ||
| Eastern | EB | 200 | 4.04 ± 0.80 | 1.31 (3) | 153.73 | 126.04–177.29 | 2.86 | |
| TN | 200 | 3.92 ± 0.79 | 0.74 (3) | 155.02 | 127.45–178.74 | 2.88 | ||
| Nyanza | KS | 200 | 4.45 ± 0.76 | 1.53 (3) | 139.63 | 117.32–158.61 | 2.6 | |
| SA | 200 | 3.60 ± 0.89 | 1.67 (3) | 140.62 | 102.98–165.58 | 2.62 | ||
| Rift valley | UG | 200 | 3.78 ± 0.79 | 0.57 (3) | 179.13 | 152.25–208.14 | 3.33 | |
| TZ | 200 | 3.29 ± 0.82 | 2.64 (3) | 197.36 | 165.03–241.37 | 3.67 | ||
| NN | 200 | 3.61 ± 0.72 | 0.20 (3) | 162.26 | 134.88–188.64 | 3.02 | ||
|
| ||||||||
| Western | Deltamethrin | SUS | 200 | 1.59 ± 0.27 | 0.34 (3) | 29.46 | 18.25–40.92 | 1 |
| KK | 200 | 1.41 ± 0.27 | 0.15 (3) | 64.71 | 40.96–95.51 | 2.2 | ||
| VH | 200 | 1.46 ± 0.27 | 0.49 (3) | 62.84 | 40.62–91.07 | 2.13 | ||
| BS | 200 | 1.27 ± 0.26 | 2.25 (3) | 66.31 | 40.83–101.65 | 2.25 | ||
| BN | 200 | 1.99 ± 0.28 | 0.96 (3) | 63.25 | 48.48–81.19 | 2.15 | ||
| Central | MR | 200 | 1.12 ± 0.25 | 0.34 (3) | 100.82 | 62.83–179.24 | 3.42 | |
| KA | 200 | 1.36 ± 0.27 | 1.55 (3) | 97.83 | 64.08–154.50 | 3.32 | ||
| Eastern | EB | 200 | 1.33 ± 0.26 | 0.35 (3) | 73.34 | 47.39–110.38 | 2.49 | |
| TN | 200 | 1.11 ± 0.23 | 1.29 (3) | 73.17 | 47.09–115.73 | 2.48 | ||
| Nyanza | KS | 200 | 1.50 ± 0.25 | 0.19 (3) | 61.78 | 43.44–85.34 | 2.1 | |
| SA | 200 | 1.51 ± 0.27 | 1.03 (3) | 61.27 | 40.19–87.49 | 2.08 | ||
| Rift valley | UG | 200 | 1.04 ± 0.27 | 0.23 (3) | 122.95 | 69.82–264.10 | 4.17 | |
| TZ | 200 | 1.16 ± 0.26 | 0.30 (3) | 130.6 | 82.17–248.80 | 4.43 | ||
| NN | 200 | 1.46 ± 0.28 | 0.70 (3) | 119.21 | 81.95–186.57 | 4.05 | ||
|
| ||||||||
| Western | Indoxacarb | SUS | 200 | 1.95 ± 0.35 | 1.74 (3) | 10.85 | 6.66–14.68 | 1 |
| KK | 200 | 1.91 ± 0.37 | 2.06 (3) | 16.03 | 10.72–21.05 | 1.48 | ||
| VH | 200 | 1.86 ± 0.33 | 2.72 (3) | 15.49 | 10.90–20.02 | 1.43 | ||
| BS | 200 | 2.24 ± 0.45 | 1.58 (3) | 16.47 | 10.66–21.41 | 1.52 | ||
| BN | 200 | 1.81 ± 0.33 | 1.47 (3) | 16.3 | 11.55–21.15 | 1.5 | ||
| Central | MR | 200 | 1.95 ± 0.37 | 0.51 (3) | 21.92 | 16.31–28.21 | 2.02 | |
| KA | 200 | 1.98 ± 0.40 | 0.23 (3) | 20.24 | 14.24–26.25 | 1.87 | ||
| Eastern | EB | 200 | 2.44 ± 0.52 | 0.73 (2) | 18.66 | 12.33–23.74 | 1.72 | |
| TN | 200 | 1.92 ± 0.40 | 2.54 (3) | 18.81 | 12.59–24.72 | 1.73 | ||
| Nyanza | KS | 200 | 1.62 ± 0.32 | 0.21 (3) | 14.96 | 9.56–20.31 | 1.38 | |
| SA | 200 | 1.47 ± 0.32 | 1.05 (3) | 14.21 | 8.47–19.84 | 1.31 | ||
| Rift valley | UG | 200 | 1.78 ± 0.40 | 0.13 (3) | 25.94 | 18.54–35.57 | 2.39 | |
| TZ | 200 | 1.77 ± 0.39 | 2.53 (3) | 26.28 | 19.04–35.81 | 2.42 | ||
| NN | 200 | 1.71 ± 0.35 | 1.97 (3) | 22.33 | 16.06–29.93 | 2.06 | ||