The Impact of Predation of Laricobius nigrinus (Coleoptera: Derodontidae) on Adelges tsugae (Hemiptera: Adelgidae) and Tsuga canadensis (Pinales: Pinaceae) Tree Health
| dc.contributor.author | Preston, Carrie E. | en |
| dc.contributor.author | Arneson, Alicia | en |
| dc.contributor.author | Seiler, John R. | en |
| dc.contributor.author | Salom, Scott M. | en |
| dc.date.accessioned | 2023-04-12T16:29:01Z | en |
| dc.date.available | 2023-04-12T16:29:01Z | en |
| dc.date.issued | 2023-03-29 | en |
| dc.date.updated | 2023-04-12T13:24:07Z | en |
| dc.description.abstract | The hemlock woolly adelgid (HWA), <i>Adelges tsugae</i>, has threatened the sustainable management of <i>Tsuga canadensis</i> in the eastern United States. Biological control efforts have led to the establishment of <i>Laricobius nigrinus</i>, a specialist predator of HWA. Although <i>L. nigrinus</i> has a significant impact on HWA populations, its effect on the health of HWA’s host is unknown. In 2020, 14 eastern hemlocks at one site in Virginia were selected to determine whether predation of <i>L. nigrinus</i> at different densities on HWA populations had an effect on tree health. <i>Laricobius nigrinus</i> predation significantly impacted the HWA sistens generation, resulting in significantly more new shoots produced on treatment branches with the greatest density of <i>L. nigrinus</i> adults. Final HWA density was lowest on treatment branches with <i>L. nigrinus</i>, followed by the negative control, and the treatment without <i>L. nigrinus</i>. In June, the photosynthetic rate was significantly greater for the negative control, followed by <i>L. nigrinus</i> treatments. There were no statistical differences among measured tree physiological parameters in July and October, indicating a temporary effect from <i>L. nigrinus</i> predation on hemlock tree physiology. | en |
| dc.description.version | Published version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Preston, C.E.; Arneson, A.; Seiler, J.R.; Salom, S.M. The Impact of Predation of Laricobius nigrinus (Coleoptera: Derodontidae) on Adelges tsugae (Hemiptera: Adelgidae) and Tsuga canadensis (Pinales: Pinaceae) Tree Health. Forests 2023, 14, 698. | en |
| dc.identifier.doi | https://doi.org/10.3390/f14040698 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/114490 | en |
| dc.language.iso | en | en |
| dc.publisher | MDPI | en |
| dc.rights | Creative Commons Attribution 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en |
| dc.subject | classical biological control | en |
| dc.subject | hemlock woolly adelgid | en |
| dc.subject | eastern hemlock | en |
| dc.subject | photosynthesis | en |
| dc.subject | Laricobius nigrinus | en |
| dc.title | The Impact of Predation of Laricobius nigrinus (Coleoptera: Derodontidae) on Adelges tsugae (Hemiptera: Adelgidae) and Tsuga canadensis (Pinales: Pinaceae) Tree Health | en |
| dc.title.serial | Forests | en |
| dc.type | Article - Refereed | en |
| dc.type.dcmitype | Text | en |