Table 4. Susceptibility of different T. cinnabarinus populations to two acaricides after exposure to acid rain for 40 generations
| Populations | acaricides | slope | χ2 | LC50±SE (mg/L) | 95%CL (mg/L) |
|---|---|---|---|---|---|
| pH6.8 | dichlorvos | 4.5856 | 1.0063 | 464.77±12.32a | 488.92~440.62 |
| fenpropathrin | 1.1405 | 1.481 | 1602.24±178.85a | 1952.79~1251.69 | |
| pH5.6 | dichlorvos | 4.2948 | 1.4084 | 463.18±13.02a | 488.70~450.68 |
| fenpropathrin | 1.3673 | 9.8075 | 1777.83±173.50a | 2117.89~1437.77 | |
| pH4.0 | dichlorvos | 4.2833 | 1.6366 | 470.16±13.28a | 496.19~444.13 |
| fenpropathrin | 1.2756 | 6.3203 | 1844.81±191.84a | 2220.82~1468.80 | |
| pH3.0 | dichlorvos | 4.8076 | 2.4633 | 480.97±12.42a | 505.31~456.63 |
| fenpropathrin | 1.1095 | 0.386 | 1809.86±211.23a | 2223.87~1395.85 | |
| pH2.5 | dichlorvos | 5.1519 | 2.47 | 481.70±11.62a | 504.48~458.92 |
| fenpropathrin | 1.0884 | 1.6714 | 1841.06±219.24a | 2270.77~1411.35 |