Seasonal Assessment of Supercooling Points for Two Introduced and One Native Laricobius spp. (Coleoptera: Derodontidae), Predators of Adelgidae
| dc.contributor.author | Toland, Ashley A. | en |
| dc.contributor.author | Wantuch, Holly A. | en |
| dc.contributor.author | Mullins, Donald E. | en |
| dc.contributor.author | Kuhar, Thomas P. | en |
| dc.contributor.author | Salom, Scott M. | en |
| dc.date.accessioned | 2019-12-16T13:54:22Z | en |
| dc.date.available | 2019-12-16T13:54:22Z | en |
| dc.date.issued | 2019-11-26 | en |
| dc.date.updated | 2019-12-09T08:27:51Z | en |
| dc.description.abstract | The hemlock woolly adelgid, <i>Adelges tsugae</i> Annand, is an invasive insect that threatens hemlock species in eastern North America. Several species from the genus <i>Laricobius</i> are predators of <i>A. tsugae</i> in its native areas of Asia and the western United States. Two <i>Laricobius</i> species have been released as biological control agents: <i>Laricobius nigrinus</i> Fender, and <i>Laricobius osakensis</i> Montgomery and Shiyake. <i>Laricobius rubidus</i> LeConte is an adelgid predator native to the Eastern United States, where it can feed and complete development on <i>A. tsugae</i> opportunistically. Laboratory assays were conducted to assess the cold hardiness of these three <i>Laricobius</i> species, including two distinct populations of <i>L. osakensis</i>, by measuring the supercooling points of each species from November 2016 through March 2017. This information may be useful for choosing the best-suited biological control agent for a particular region to control <i>A. tsugae</i>. There was a significant difference between the overall mean supercooling point of <i>L. rubidus</i> compared to the other <i>Laricobius</i> spp. There were also significant differences of supercooling points between <i>L. rubidus</i> and both strains of <i>L. osakensis</i> in January, and significant differences between <i>L. rubidus</i> and all other strains in February. <i>L. rubidus</i> appear better adapted to cold extremes in the eastern U.S. than imported <i>Laricobius</i> spp. | en |
| dc.description.version | Published version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Toland, A.A.; Wantuch, H.A.; Mullins, D.E.; Kuhar, T.P.; Salom, S.M. Seasonal Assessment of Supercooling Points for Two Introduced and One Native Laricobius spp. (Coleoptera: Derodontidae), Predators of Adelgidae. Insects 2019, 10, 426. | en |
| dc.identifier.doi | https://doi.org/10.3390/insects10120426 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/95993 | 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 | supercooling point | en |
| dc.subject | cold tolerance | en |
| dc.subject | Laricobius osakensis | en |
| dc.subject | Laricobius nigrinus | en |
| dc.subject | Laricobius rubidus | en |
| dc.subject | Adelges tsugae | en |
| dc.subject | hemlock woolly adelgid | en |
| dc.title | Seasonal Assessment of Supercooling Points for Two Introduced and One Native Laricobius spp. (Coleoptera: Derodontidae), Predators of Adelgidae | en |
| dc.title.serial | Insects | en |
| dc.type | Article - Refereed | en |
| dc.type.dcmitype | Text | en |