Table 1. Movement and dispersal activity of Trichogramma principium females in relation to previous parasitization or egg retention.
| Before the test females: | Have parasitized | Manifested egg retention | ||
|---|---|---|---|---|
| Age of females (days) | 4 | 6 | 4 | 6 |
| Number of females tested | 48 | 64 | 91 | 59 |
| Number of 5 x 5 mm square borders crossed per one second of observation (mean±SEM) * | 0.30±0.04 a | 0.25±0.03 a | 0.47±0.03 b | 0.54±0.04 b |
| Percentage and 0.95 confidence intervals of females exited from: | ||||
| small (1.5 cm in radius) circle** | 71% a (53 – 84) |
72% a (57 – 83) |
93% b (84 – 98) |
95% b (83 – 99) |
| large (5 cm in radius) circle** | 29% a (15 – 46) |
17% a (7 – 30) |
71% b (59 – 81) |
64% b (48 – 77) |