Treesearch
Displaying 1 - 10 of 63,178 Publications- Korean oak wilt disease associated with Dryadomyces quercus-mongolicae recently emerged as a major tree disease in South Korea. A comprehensive transcriptome analysis is presented for D. quercus-mongolicae grown in vitro on three different culture media, identifying nearly 7,000 expressed transcripts. Most transcripts are associated with proteins essential for fungal survival and growth. The 40S ribosomal protein S25, ceramide very long chain fatty acid hydroxylase, Epl1 protein, and ADP/ATP translocase are particularly important due to their critical roles in the metabolism and environmental ...AuthorsHyowon Park, Jorge R. Ibarra Caballero, Jane E. Stewart, Ned B. Klopfenstein, Uk Lee, Mee-Sook KimKeywordsSourceThe Plant Pathology Journal. 41(3): 409-418.Year2025
- This field guide - designed for use by people with minimal botanical training - is an identification aid for nearly 200 plant species having ecological indicator value in northern Idaho forest habitat types. It contains line drawings, simplified taxonomic descriptions, characteristics, tables, conspectuses, and keys. It emphasizes characteristics useful for field identification of many common and special interest plants. This is not a comprehensive taxonomy of northern Idaho flora.Previous Versions:RMRS-GTR-118-CD (2004): https://research.fs.usda.gov/treesearch/65151INT-GTR-180: https://resear...AuthorsPatricia A. Patterson, Kenneth E. Neiman, Jonalea (Tonn) HansonSourceGen. Tech. Rep. RMRS-GTR-414. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 248 p. https://doi.org/10.2737/RMRS-GTR-414Year2025
- Silvopasture is a type of agroforestry system in which trees and shrubs are intentionally integrated with forages and livestock on the same unit of land. Silvopasture systems achieve multiple ecological, social, and production benefits. In addition to their value for timber and nontimber products, trees in silvopasture systems create beneficial shade for livestock during summer months and can enhance forage quality and quantity and provide other ecosystem services.AuthorsKate MacFarland, Sam Feibel, Mark Batcheler, Annabelle Moore, Matthew M. Smith, Aaron JoslinYear2025
Unexpected soundscape response to insecticide application in oak forests
Formally Refereed
Rachel Carson’s warning of a silent spring directed attention to unwanted side effects of pesticide application. Though her work led to policies restricting insecticide use, various insecticides currently in use affect nontarget organisms and may contribute to population declines. The insecticide tebufenozide is used to control defoliating Lepidoptera in oak forests harboring rich insect faunas. Over 3 years, we tested the effect of its aerial application on bird populations with autonomous sound recorders in a large, replicated, full factorial field experiment during a spongy moth (Lymantria ...AuthorsOliver Mitesser, Sophia Hochrein, Zuzana Burivalova, Sandra Müller, Christian Strätz, Andrew M. Liebhold, Benjamin M. L. Leroy, Torben Hilmers, Kostadin B. Georgiev, Soyeon Bae, Wolfgang Weisser, Jörg MüllerKeywordsSourceConservation BiologyYear2025- This study focused on an outbreak of D. sapinea and Diplodia scrobiculata, which caused extensive dieback and mortality of slash pines (Pinus elliottii) along a highway in central Florida starting in 2012. The presence of an unusually large and uniform outbreak led to concern about what factors were responsible in the development of the outbreak. The objectives of this study were to (1) examine the effect of nutrients in this outbreak and (2) investigate the role of nitrogen in disease severity using inoculated saplings.AuthorsClaudia A. Paez, Eric J. Jokela, Patrick D. James, Jason A. SmithSourcePaez, Claudia A.; Jokela, Eric J.; James, Patrick D.; Smith, Jason A. 2025. Etiology of Diplodia tip blight outbreak on slash pine in Florida. In: Conkling, B.L.; Pandit, K., eds. Forest Health Monitoring: Evaluation Monitoring project summaries 2023. Gen. Tech. Rep. WO-105a. Washington, DC: U.S. Department of Agriculture, Forest Service: 25–30. Chapter 4.Year2025
- Valued for timber and wildlife, oaks (Quercus spp.) face many regeneration challenges in the eastern United States. Decades of fire suppression have produced favorable conditions for tree species that grow well in humid climates, such as maples, and less favorable conditions for species that thrive under drier conditions, such as oaks. The Hoosier National Forest in southern Indiana noticed a lack of oak advance regeneration in the 2010s, when long-term research showed that clearcut harvests performed in the 1980s, which were intended to regenerate oak, were now more dominated by red maple, tu...AuthorsJenna Zukswert, John Kabrick, Daniel DeyKeywordsSourceFS; Rooted in ResearchYear2025
- Hybridization between exotic and native species can lead to negative ecological and economic consequences. The invasive winter moth (WM), Operophtera brumata, uses the same sex-attractant pheromone and mates and produces fertile offspring with a native congener the Bruce spanworm (BSW), O. bruceata, and a stable hybrid zone has formed where their ranges overlap in the northeastern United States. However, the fact that the two species have not merged, despite seasonal overlap of flight, suggests that one or more pre- or post-mating barriers to hybridization might therefore exist. Here, we evalu...AuthorsJennifer Chandler, Joseph S. Elkinton, George H. Boettner, Jeremy C. AndersenSourceJournal of Insect BehaviorYear2025
- Historically, the prices of softwood timber and lumber have shown strong correlations within their supply chain. However, since the 2008 financial crisis, the gap between these prices has widened, a trend further exacerbated during and after the COVID-19 pandemic. This study examines the impact of various economic shocks on this expanding price gap from 1999 to 2023. Using a Markov Switching Autoregressive model and incorporating variables such as housing starts, lumber futures, mortgage rates, Canadian softwood lumber export, and standing inventory, we identify periods of divergence and stabi...AuthorsSabhyata Lamichhane, Rajan Parajuli, Jesse D. Henderson, Bruno Kanieski da Silva, Shaun M. TangerSourceForest ScienceYear2025
A female sterilization method for use in field-based behavioral studies of the invasive Asian longhorned beetle (Anoplophora glabripennis)
Formally Refereed
Asian longhorned beetle (Anoplophora glabripennis Motschulsky), a wood borer (Coleoptera: Cerambycidae) native to China, has been unintentionally and repeatedly introduced to North American and European landscapes as a stow-away in the wood packing material commonly used in international trade. Asian longhorned beetle causes extensive damage and mortality in multiple deciduous tree species and in response, countries in both North America and Europe have adopted policies of eradication. Models that integrate patterns of Asian longhorned beetle dispersal with records of infested trees are critic...AuthorsJennifer Chandler, Robert Talbot Trotter, Brian AukemaKeywordsSourceJournal of Insect ScienceYear2025- The objectives of this study were (1) to understand the increasing flowering dogwood mortality and population decline in the Southeastern United States over the past few decades; (2) to identify the predisposing, inciting, and contributing factors that could be leading to a decline complex; and (3) to investigate interactions between the identified factors based on Forest Inventory and Analysis (FIA) data and site-specific field survey observations. Findings from the study could facilitate future development of flowering dogwood decline risk assessment tools to assist land managers with manage...AuthorsRabiu Olatinwo, Wood JohnsonSourceOlatinwo, Rabiu; Johnson, Wood. 2025. Application of Forest Inventory and Analysis data and site-specific factors in understanding flowering dogwood decline in the Southeastern United States. In: Conkling, B.L.; Pandit, K., eds. Forest Health Monitoring: Evaluation Monitoring project summaries 2023. Gen. Tech. Rep. WO-105a. Washington, DC: U.S. Department of Agriculture, Forest Service: 41–51. Chapter 6. https://doi.org/10.2737/WO-GTR-105a-Chap6.Year2025