Table 3.
Percentage of bees sampled from each colony determined infected by spore analysis and qPCR over 3 seasons.
| Spring | Summer 3 | Fall | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Colony | Spore Counts | Raw qPCR 1 | Threshold qPCR 2 | Spore Counts | Raw qPCR | Threshold qPCR | Spore Counts | Raw qPCR | Threshold qPCR |
| 1 | 7 | 32.6 | 2.3 | 14 | 82 | 38 | 0 | 12 | 0 |
| 2 | 4 | 36 | 2 | 4 | 56 | 32 | 0 | 2 | 0 |
| 3 | 35.9 | 84.6 | 38.5 | 4 | 56 | 26 | 2 | 14 | 2 |
| 4 | 4.5 | 63.6 | 2.3 | 11.6 | 16.3 | 0 | 2 | 10 | 0 |
| 5 | 3 | 63.9 | 8.3 | 14 | 18 | 12 | 4 | 12 | 0 |
1 All samples with a positive result for qPCR are included in this percentage; 2 Only samples with a copy number above 10 are included in this percentage; 3 Differences in detection between spore analysis and threshold qPCR were significantly different (p < 0.05) in the summer season only.