Table 4. Insecticidal activities of PP derivatives 15a–e against insect pests affecting animal health.
| Compound | Mortality | ||||
|---|---|---|---|---|---|
| H. longicornis | D. immitisa ) | ||||
| % Mortality at 200 ppm | 100 ppm | 50 ppm | 25 ppm | 12.5 ppm | |
| 15a | 0 | + | |||
| 15b | 24 | − | |||
| 15c | 0 | − | |||
| 15d | 27 | ++ | + | + | − |
| 15e | 23 | − | |||
| PP-A | 0 | − | − | − | − |
| PP-I | 0 | − | |||
| Commercial standard | fipronil | ivermectin | |||
| 10 ppm | 5 ppm | ||||
| 100 | +++ | ||||
a) The activities against the microfilariae of D. immitis were evaluated using the index; +++: at least two-thirds of the microfilariae died, ++: almost all the microfilariae were affected, or at least one-third died, +: less than one-third of the microfilariae died, −: no influence.