Spearman correlation coefficients comparing number of emerald ash borer emergence holes to those of native borers and bark beetles in each year of the study in Indianapolis.
| Year | Longhorned beetles | Clearwing borers | Carpenter worms | Bark beetles | All native borers |
|---|---|---|---|---|---|
| 2010 | 0.17* | 0.12 | 0.00 | −0.05 | 0.18* |
| 2011 | 0.25* | 0.06 | −0.09 | 0.07 | 0.29* |
| 2012 | 0.07 | 0.15 | 0.00 | 0.25* | 0.22* |
| 2013 | −0.22 | 0.39 | 0.00 | 0.00 | 0.29 |
Note: Asterisk (*) indicates P < 0.05.