Table 3.
Percent egg hatch and adult flea emergence with percent efficacies against Ctenocephalides felis for groups treated with CS DPP, FM or IP on days 0, 30, 60 and 90 of the study
| Egg hatch | ||||||||
|---|---|---|---|---|---|---|---|---|
| Egg collection | % hatch | % efficacy | ||||||
| Study days | Days since last treatment | CS | DPP | FM | IP | DPP | FM | IP |
| 18–19 | 18–19 | 78.1 | na* | na* | na* | na | na | na |
| 59–60 | 29–30 | 74.6 | na* | na * | na* | na | na | na |
| 78–79 | 18–19 | 75.1 | na* | na* | na | na | na | na |
| 119–120 | 29–30 | 80.7 | na* | na* | na* | na | na | na |
| 153–154 | 63–64 | 79.6 | 1.0* | 0.2* | 33.7*+ | 98.7 | 99.7 | 57.7 |
| Adult flea emergence | ||||||||
| Egg collection | % emergence | % efficacy | ||||||
| Study days | Days since last treatment | CS | DPP | FM | IP | DPP | FM | IP |
| 18–19 | 18–19 | 74.3 | na* | na* | na* | na | na | na |
| 59–60 | 29–30 | 73.9 | na* | na* | na* | na | na | na |
| 78–79 | 18–19 | 74.8 | na* | na* | na* | na | na | na |
| 119–120 | 29–30 | 80.4 | na* | na* | na* | na | na | na |
| 153–154 | 63–64 | 78.3 | 1.0* | 0.1* | 26.5*+ | 98.7 | 99.9 | 66.2 |
CS control solution, DPP dinotefuran, pyriproxifen and permethrin, FM fipronil and (S)-methoprene, IP imidacloprid and permethrin, na not applicable because no egg could be collected for incubation
*Significantly different from the CS group (p < 0.01)
+Significantly different from the DPP group (p < 0.01)