Table 3 Effect of sample size on the detection of Tylenchulus semipenetrans in a mixture with both T. palustris and T. graminis (Abd-Elgawad and McSorley 2009)a
Number of Tylenchulus spp. (sample size) | % Tylenchulus semipenetrans in the population | Percentage of detecting T. semipenetrans |
|---|---|---|
10 | 1 | 10 |
20 | 1 | 18 |
30 | 1 | 26 |
10 | 5 | 40 |
20 | 5 | 64 |
30 | 5 | 79 |
10 | 10 | 65 |
20 | 10 | 88 |
30 | 10 | 96 |
10 | 20 | 89 |
20 | 20 | 99 |
30 | 20 | >99 |