The five inoculation treatments.
| Treatment number | HWA inoculation rate | Sleeve | Abbreviation |
|---|---|---|---|
| 1 | Low (10–20 ovisacs) | 100 μm sleeve | L100 |
| 2 | High (25–40 ovisacs) | 100 μm sleeve | H100 |
| 3 | Low (10–20 ovisacs) | 1000 μm sleeve | L1000 |
| 4 | High (25–40 ovisacs) | 1000 μm sleeve | H1000 |
| 5 | Intermediate (20–25 ovisacs) | No sleeve | CNS |
HWA = hemlock woolly adelgid.