Table 4.
Susceptibility of field populations of Spodoptera frugiperda to pyridaben, abamectin, and imidacloprid.
| Region | Insecticides | P | N | Slope ± SE | χ 2 (df) | LC50 (mg/L) | 95% FL (mg/L) | RR |
|---|---|---|---|---|---|---|---|---|
| Western | Pyridaben | SUS | 200 | 4.16 ± 0.68 | 0.93 (3) | 4.96 | 4.02–5.70 | 1 |
| KK | 200 | 4.25 ± 0.67 | 0.69 (3) | 5.6 | 4.68–6.35 | 1.13 | ||
| VH | 200 | 3.56 ± 0.63 | 2.29 (3) | 5.32 | 4.23–6.18 | 1.07 | ||
| BS | 200 | 4.01 ± 0.63 | 0.25 (3) | 5.95 | 5.05–6.72 | 1.2 | ||
| BN | 200 | 4.02 ± 0.65 | 2.09 (3) | 5.71 | 4.74–6.49 | 1.15 | ||
| Central | MR | 200 | 3.66 ± 0.62 | 0.12 (3) | 6.47 | 5.48–7.36 | 1.3 | |
| KA | 200 | 4.10 ± 0.64 | 0.71 (3) | 6.44 | 5.55–7.24 | 1.3 | ||
| Eastern | EB | 200 | 4.21 ± 0.69 | 1.37 (3) | 6.16 | 5.19–6.98 | 1.24 | |
| TN | 200 | 4.49 ± 0.72 | 0.97 (3) | 6.17 | 5.22–6.95 | 1.24 | ||
| Nyanza | KS | 200 | 4.71 ± 0.72 | 2.49 (3) | 5.57 | 4.69–6.28 | 1.12 | |
| SA | 200 | 4.20 ± 0.69 | 1.81 (3) | 5.33 | 4.35–6.11 | 1.07 | ||
| Rift valley | UG | 200 | 3.76 ± 0.63 | 0.49 (3) | 6.82 | 5.86–7.72 | 1.38 | |
| TZ | 200 | 4.06 ± 0.73 | 0.04 (3) | 6.96 | 5.81–7.95 | 1.4 | ||
| NN | 200 | 4.13 ± 0.65 | 0.58 (3) | 6.75 | 5.85–7.57 | 1.36 | ||
|
| ||||||||
| Western | Abamectin | SUS | 200 | 2.94 ± 0.48 | 0.74 (3) | 3089.31 | 2269.00–3782.95 | 1 |
| KK | 200 | 2.76 ± 0.51 | 1.43 (3) | 4246.42 | 3134.31–5198.31 | 1.37 | ||
| VH | 200 | 2.96 ± 0.46 | 0.09 (3) | 4168.13 | 3356.92–4916.31 | 1.35 | ||
| BS | 200 | 2.64 ± 0.47 | 0.64 (3) | 4319.99 | 3292.52–5244.81 | 1.4 | ||
| BN | 200 | 2.69 ± 0.44 | 1.08 (3) | 4325.42 | 3444.55–5155.33 | 1.4 | ||
| Central | MR | 200 | 2.75 ± 0.46 | 0.08 (3) | 4767.97 | 3850.98–5667.42 | 1.54 | |
| KA | 200 | 2.44 ± 0.45 | 0.68 (3) | 4581.29 | 3493.61–5612.33 | 1.48 | ||
| Eastern | EB | 200 | 2.91 ± 0.51 | 0.2 (3) | 4396.5 | 3352.09–5310.22 | 1.42 | |
| TN | 200 | 2.93 ± 0.51 | 1.52 (3) | 4350.45 | 3340.59–5229.24 | 1.41 | ||
| Nyanza | KS | 200 | 2.88 ± 0.45 | 0.24 (3) | 4201.76 | 3372.33–4969.76 | 1.36 | |
| SA | 200 | 2.75 ± 0.45 | 2.43 (3) | 4100.59 | 3230.84–4894.78 | 1.33 | ||
| Rift valley | UG | 200 | 2.49 ± 0.49 | 0.73 (3) | 5105.51 | 3910.34–6270.82 | 1.65 | |
| TZ | 200 | 2.58 ± 0.46 | 0.17 (3) | 5359.01 | 4346.40–6453.85 | 1.73 | ||
| NN | 200 | 2.99 ± 0.55 | 0.86 (3) | 5040.48 | 3930.81–6043.45 | 1.63 | ||
|
| ||||||||
| Western | Imidacloprid | SUS | 200 | 4.11 ± 0.69 | 0.18 (3) | 955.68 | 761.82–1103.07 | 1 |
| KK | 200 | 3.94 ± 0.68 | 0.36 (3) | 1397.14 | 1188.75–1587.29 | 1.46 | ||
| VH | 200 | 3.49 ± 0.61 | 1.94 (3) | 1288.41 | 1082.51–1470.58 | 1.35 | ||
| BS | 200 | 3.6 ± 0.68 | 0.37 (3) | 1476.64 | 1241.16–1701.55 | 1.55 | ||
| BN | 200 | 3.00 ± 0.60 | 0.27 (3) | 1427.66 | 1187.70–1667.36 | 1.49 | ||
| Central | MR | 200 | 3.91 ± 0.81 | 0.51 (3) | 1654.45 | 1388.68–1916.66 | 1.73 | |
| KA | 200 | 4.13 ± 0.79 | 0.61 (3) | 1684.33 | 1447.96–1933.26 | 1.76 | ||
| Eastern | EB | 200 | 3.91 ± 0.77 | 1.65 (3) | 1544.96 | 1296.75–1772.16 | 1.61 | |
| TN | 200 | 3.36 ± 0.72 | 0.63 (3) | 1565.02 | 1276.63–1847.47 | 1.64 | ||
| Nyanza | KS | 200 | 4.16 ± 0.67 | 0.28 (3) | 1230.25 | 1038.0–1392.80 | 1.29 | |
| SA | 200 | 4.14 ± 0.70 | 0.10 (3) | 1168.39 | 960.90–1336.15 | 1.22 | ||
| Rift valley | UG | 200 | 3.55 ± 0.70 | 1.60 (3) | 1726.1 | 1481.32–2026.78 | 1.81 | |
| TZ | 200 | 4.04 ± 0.86 | 0.21 (3) | 1748.02 | 1480.99–2027.77 | 1.83 | ||
| NN | 200 | 3.64 ± 0.79 | 0.79 (3) | 1696.73 | 1411.02–1996.02 | 1.78 | ||