Effects of Grosmannia clavigera and Leptographium longiclavatum on Western White Pine Seedlings and the Fungicidal Activity of Alamo®, Arbotect®, and TREE-äge®
| dc.contributor.author | Wyka, Stephen A. | en |
| dc.contributor.author | Doccola, Joseph J. | en |
| dc.contributor.author | Strom, Brian L. | en |
| dc.contributor.author | Smith, Sheri L. | en |
| dc.contributor.author | McPherson, Douglas W. | en |
| dc.contributor.author | Aćimović, Srđan G. | en |
| dc.contributor.author | Klepzig, Kier D. | en |
| dc.date.accessioned | 2024-02-27T13:47:46Z | en |
| dc.date.available | 2024-02-27T13:47:46Z | en |
| dc.date.issued | 2016-03-15 | en |
| dc.description.abstract | Bark beetles carry a number of associated organisms that are transferred to the host tree upon attack that are thought to play a role in tree decline. To assess the pathogenicity to western white pine (WWP; Pinus monticola) of fungi carried by the mountain pine beetle (MPB; Dendroctonus ponderosae), and to evaluate the potential for systemic prophylactic treatments for reducing fungal impacts, experiments were conducted with WWP seedlings to meet three objectives: 1) evaluate pathogenicity of two MPB-associated blue-stain fungi; 2) evaluate phytotoxicity of tree injection products; 3) evaluate the anti-fungal activity of tree injection products, in vitro and in vivo, toward the associated blue-staining fungi. To evaluate pathogenicity, seedlings were inoculated with Grosmannia clavigera or Leptographium longiclavatum, common fungal associates of MPB. Seedling mortality at four months after inoculation was 50% with L. longiclavatum and 90% with G. clavigera, both significantly higher than controls and thereby demonstrating pathogenicity. Phytotoxic effects of TREE-äge®, Alamo®, and Arbotect® were evaluated by stem injection; no phytotoxic effects were observed. Anti-fungal properties of the same three products were evaluated in vitro against G. clavigera, where Alamo was most active. Co-inoculation of G. clavigera and L. longiclavatum into seedlings after a stem injection of Alamo showed significantly less mortality and lesion formation than either species alone. Results support the hypothesis that MPB blue-stain associates, particularly G. clavigera, promote death of WWP when attacked by MPB. These findings suggest that the administration of a fungicide with insecticide for tree protection against bark beetles may be advantageous. | en |
| dc.description.version | Published version | en |
| dc.format.extent | Pages 84-94 | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.doi | https://doi.org/10.48044/jauf.2016.007 | en |
| dc.identifier.eissn | 2155-0778 | en |
| dc.identifier.issn | 1935-5297 | en |
| dc.identifier.issue | 2 | en |
| dc.identifier.orcid | Aćimović, Srđan G. [0000-0002-0710-2339] | en |
| dc.identifier.uri | https://hdl.handle.net/10919/118188 | en |
| dc.identifier.volume | 42 | en |
| dc.language.iso | en | en |
| dc.publisher | International Society of Arboriculture | en |
| dc.relation.uri | https://auf.isa-arbor.com/content/42/2/84 | en |
| dc.relation.uri | https://auf.isa-arbor.com/ | en |
| dc.rights | Public Domain (U.S.) | en |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | en |
| dc.title | Effects of Grosmannia clavigera and Leptographium longiclavatum on Western White Pine Seedlings and the Fungicidal Activity of Alamo®, Arbotect®, and TREE-äge® | en |
| dc.title.serial | Arboriculture & Urban Forestry | en |
| dc.type | Article - Refereed | en |
| dc.type.dcmitype | Text | en |
| dc.type.other | Article | en |
| dcterms.dateAccepted | 2016-03-15 | en |
| pubs.organisational-group | /Virginia Tech | en |
| pubs.organisational-group | /Virginia Tech/Agriculture & Life Sciences | en |
| pubs.organisational-group | /Virginia Tech/Agriculture & Life Sciences/Alson H. Smith, Jr. AREC | en |
| pubs.organisational-group | /Virginia Tech/All T&R Faculty | en |
| pubs.organisational-group | /Virginia Tech/Agriculture & Life Sciences/CALS T&R Faculty | en |