Table 6.
Mean distance traveled [MDT] ±SE for Plutella xylostella strains released at three rates in field.
| Release Rate | 1,000 | 1,500 | 2,500 | Overall* | |||||
|---|---|---|---|---|---|---|---|---|---|
| Days Post- | Strain | Strain | Strain | Strain | |||||
| Release | N | GA | OX4319L | GA | OX4319L | GA | OX4319L | GA | OX |
| 1 | 12 | 9.8 ± 9.8 | 11.2 ± 11.2 | 30.0† | 68.7† | 32.9 ± 0.5 | 42.9 ± 21.5 | 23.1 ± 6.3 | 35.4 ± 13.3 |
| 2 | 12 | 9.8 ± 9.8 | 11.2 ± 11.2 | 14.0 ± 14.0 | 39.3 ± 25.3 | 34.3 ± 3.1 | 41.9 ± 1.3 | 19.4 ± 6.6 | 30.8 ± 11.0 |
| 3 | 12 | 20.0 ± 1.0 | 25.1 ± 2.9 | 14.0 ± 14.0 | 39.3 ± 25.3 | 43.4 ± 6.0 | 47.6 ± 13.4 | 25.8 ± 6.9 | 37.3 ± 8.5 |
| 4 | 12 | 19.7 ± 0.4 | 19.9 ± 2.3 | 21.0 ± 7.0 | 39.0 ± 25.0 | 42.9 ± 5.1 | 46.6 ± 13.2 | 27.9 ± 5.3 | 35.2 ± 8.9 |
| 5 | 12 | 19.6 ± 0.5 | 20.1 ± 2.1 | 21.0 ± 7.0 | 39.0 ± 25.0 | 44.1 ± 6.4 | 49.8 ± 7.8 | 28.3 ± 5.6 | 36.3 ± 8.7 |
| 6 | 12 | 20.2 ± 1.1 | 18.8 ± 0.1 | 21.6 ± 6.3 | 40.5 ± 23.4 | 44.1 ± 6.1 | 52.2 ± 10.5 | 28.6 ± 5.4 | 37.2 ± 9.1 |
| 7 | 12 | 19.4 ± 0.6 | 21.0 ± 2.6 | 22.8 ± 4.7 | 48.1 ± 13.7 | 44.0 ± 6.1 | 52.1 ± 10.6 | 28.7 ± 5.3 | 40.4 ± 7.7 |
| 8 | 12 | 26.6 ± 7.4 | 46.1 ± 26.6 | 23.0 ± 4.4 | 47.4 ± 13.9 | 43.9 ± 6.0 | 52.0 ± 10.7 | 31.2 ± 4.9 | 48.5 ± 8.3 |
| 9 | 12 | 26.3 ± 7.2 | 46.0 ± 26.4 | 22.8 ± 4.4 | 50.0 ± 9.5 | 43.8 ± 5.9 | 52.0 ± 10.7 | 31.0 ± 4.9 | 49.3 ± 7.8 |
| 10 | 12 | 26.2 ± 7.1 | 46.3 ± 25.9 | 22.9 ± 4.3 | 49.1 ± 9.5 | 43.8 ± 5.9 | 52.0 ± 10.7 | 31.0 ± 4.9 | 49.1 ± 7.7 |
| 11 | 10 | 25.7 ± 6.7 | 46.0 ± 25.7 | 26.2 ± 7.7 | 49.1 ± 9.5 | 49.8† | 62.7† | 30.7 ± 5.7 | 50.6 ± 9.2 |
| 12 | 10 | 25.7 ± 6.7 | 46.0 ± 25.7 | 26.2 ± 7.7 | 49.0 ± 9.4 | 49.8† | 62.7† | 30.7 ± 5.7 | 50.6 ± 9.2 |
| 13 | 6 | 25.1 ± 6.1 | 46.0 ± 25.7 | 33.9† | 58.4† | 28.1 ± 4.6 | 50.2 ± 15.4 | ||
| 14 | 6 | 27.9 ± 8.8 | 46.0 ± 25.7 | 33.9† | 58.4† | 29.9 ± 5.5 | 50.2 ± 15.4 | ||
| Final MDT‡ | 27.9ab± 8.8 | 46.0ab±25.7 | 26.2a ± 7.7 | 49.0b ± 9.4 | 43.8ab± 5.9 | 52.0ab ± 10.7 | 29.9A ± 5.5 | 50.2B ±15.4 | |
Traps at 7 m are not included and no observations were made after last value in column. Mixed model where is the response variable; strain, release rate and days post-release are fixed variables and release number is a random variable. N = # releases × #strains × #release rates.
Overall Strain means followed by different capital letters in last two columns are significantly different as determined by a two-sample t-test, p <0.0001.
SE could not be calculated because data from only a single release was available.
Final MDT values are from the last day post-release where observations from both replicates were made. Means followed by different small letters in bottom row (HSD0.05, 6 = 2.89) are significantly different.