Table 2.
Toxicity of abamectin to SS and AbR strains with and without 5‐nitrouracil in Tetranychus cinnabarinus
| Strains | Treatments | LC50 (mg/L) 95% CI | Slope (±SE) | χ2 * | Increased toxicity |
|---|---|---|---|---|---|
| SS | Abamectin | 0.25 (0.20 – 0.34) | 1.37 ± 0.21 | 2.25 | – |
| Abamectin + 5‐nitrouracil | 0.20 (0.16 – 0.23) | 1.70 ± 0.23 | 2.49 | 20.00% | |
| AbR | Abamectin | 3.51 (2.68 – 5.21) | 2.27 ± 0.35 | 7.11 | – |
| Abamectin + 5‐nitrouracil | 1.51 (1.33 – 1.70) | 2.46 ± 0.30 | 1.88 | 56.98% |
*Chi‐square testing linearity, P < 0.05.
SS, susceptible strain; AbR, abamectin‐resistant strain; LC50, lethal concentration at 50% mortality.