Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 15 of 15 for “"tree of heaven"”.
-
Pollination Biology of <i>Ailanthus altissima</i> (Mill.) Swingle (Tree-of-Heaven) in the Mid-Atlantic United States
… has been collected on the pollination biology of <i>Ailanthus altissima</i> (Mill.) Swingle (tree-of-heaven), an invasive exotic in the U.S. This study was conducted to determine the insect pollinator fauna visiting <i>A. altissima</i> and to study general pollinator visitation patterns …
-
Biological control of the invasive Ailanthus altissima (tree-of-heaven) in Virginia using naturally occurring Verticillium wilt fungi
The invasive tree-of-heaven, Ailanthus altissima (Miller) Swingle, is widespread and damaging throughout North America. Verticillium wilt disease is emerging as a potentially exciting biological control option for this difficult to control tree. In Virginia, Verticillium nonalfalfae has been …
-
Epidemiology and Ecology of Verticillium nonalfalfae: Application and intervention efforts to successfully manage tree-of-heaven and restore invaded sites
Ailanthus altissima, or tree-of-heaven, is a problematic invasive tree species distributed around the world. A. altissima was recently found to be susceptible to a soilborne vascular wilt fungus, Verticillium nonalfalfae, in both the United States and Europe. Research to date on its potential as a …
-
Quarantine evaluation of Eucryptorrhynchus brandti (Harold) (Coleoptera: Curculionidae), a potential biological control agent of tree-of-heaven, Ailanthus altissima in Virginia, USA
Ailanthus altissima (Mill.) Swingle is a tree native to Asia that was intentionally introduced into the United States in the late eighteenth century. Ailanthus altissima has become an invasive species that has spread throughout most of North America. Lack of effective management tactics for …
-
Analysis of intraspecific and interspecific interactions between the invasive exotic tree-of-heaven (Ailanthus altissima (Miller) Swingle) and the native black locust (Robinia pseudoacacia L.)
… ecosystems and negatively affect the recruitment of native species. The exotic invasive Ailanthus altissima and the native Robinia pseudoacacia are frequently found in disturbed sites and exhibit similar growth and reproductive characteristics, yet each has distinct functional roles such as …
-
Management of Spotted Lanternfly (Lycorma delicatula) Overwintering Egg Masses and Multiple State Records of Aculops ailanthi, the Potential Biological Control Agent of Tree-of-Heaven (Ailanthus altissima)
… have been demonstrated to provide control of nymphal and adult L. delicatula, but more research is needed on managing SLF egg masses. I conducted bioassays across three years (2021–2023) utilizing various insecticides and biopesticides against untreated and water checks at different …
-
Foraging ecology and sampling of Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae) and its host Halyomorpha halys (Stal) (Hemiptera: Pentatomidae) in wild host trees
… in the United States and an increasing number of countries abroad. In the absence of other long-term solutions, biological control presents one of the most promising H. halys management options. An adventive population of Trissolcus japonicus (Ashmead) (Hymenoptera: Scelionidae), one of the …
-
Risk Assessment and Improving Brown Marmorated Stink Bug (Stål), Halyomorpha halys, Sampling in Virginia Soybean Systems
… halys (Stål), has become an important pest of soybean in the Mid-Atlantic US. To assess the influence of tree borders on BMSB infestations in soybean, twelve fields were sampled weekly using five 3-min visual counts of BMSB on tree of heaven (TOH) (Ailanthus altissima) and other host trees …
-
Effects of wildfire on the structure and composition of mixed oak forests in the Blue Ridge of Virginia
… and the species composition and origin of regeneration in mixed oak forests were studied following a 1900 ha man-caused early growing season wildfire in Shenandoah National Park. in the Blue Ridge Physiographic Province. Virginia. Pre-fire stands were dominated by chestnut. scarlet, and …
-
Seasonal trends in separability of leaf reflectance spectra for Ailanthus altissima and four other tree species
… project investigated the spectral separability of the invasive species Ailanthus altissima, commonly called tree of heaven, and four other native species. Leaves were collected from Ailanthus and four native tree species from May 13 through August 24, 2008, and spectral reflectance factor …
-
Assessing Eucryptorrhynchus brandti as a Potential Carrier for Verticillium albo-atrum from Infected Ailanthus altissima
Significant mortality of the invasive tree of heaven (TOH), Ailanthus altissima (Mill.) Swingle, was first observed in Pennsylvania in 2002 to be caused by an apparently host-specific strain of Verticillium albo-atrum Reinke & Berthold, a soil-borne, vascular wilt fungus. A limited survey conducted …
-
Host plant effects on the biology, behavior and ecology of brown marmorated stink bug, Halyomorpha halys (Stål) (Hemiptera: Pentatomidae)
… invasive, and highly significant pest of mid-Atlantic fruit orchards. Its capacity to invade orchards season-long is believed to be facilitated by the availability of wild host plants near orchards and the high dispersal capacity of adults and nymphs. Interactions between H. halys and …
-
Exploring Chemically Mediated Interactions Between Spotted Lanternfly, Lycorma delicatula, and Its Host Plants in the Mid-Atlantic Region of the United States
… crops, especially wine grapes. Management often relies on insecticides and removal of tree-of-heaven (Ailanthus altissima), a preferred host from which L. delicatula sequesters quassinoids for chemical defense. Yet how volatile semiochemicals and sequestration dynamics shape behavior and …
-
Phenology, impact, and rearing of Lycorma delicatula (White) (Spotted Lanternfly) in Virginia
… currently spreading in the Mid-Atlantic region of the US, where it has become a pest of economic concern for many industries in their invaded range. The purpose of this research was to document L. delicatula phenology in Virginia, their feeding impact to trees, and to test a rearing protocol in …
-
A supreme fire of thought and spirit : modernist patterns of cultural renewal in First World War Britain
… thesis seeks to analyse a highly diverse range of intellectuals operating in Britain during the First World War through a "maximalist" model of modernism. This ideal type identifies modernist qualities in radical politics, religious faith, spirituality and philosophy, as well as aesthetic …