Now showing items 1-10 of 129
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A review of the broad nosed weevil genus Thecesternus Say found in the continental United States (Coleoptera: Curculionidae: Entiminae)
Contributor:McCollum, Shiloh Rae
The taxonomy and nomenclature of the North American weevil genus Thecesternus Say was reviewed. Five previously described species are recognized as valid: affinis, foveolatus, hirsutus, humeralis, and maculosus. One new ...
Survey of selected insect taxa of Fort Sill, Comanche County, Oklahoma. Pt. 1, Selected Coleoptera, Hymenoptera, Lepidoptera, and Orthoptera
Contributor:Kondratieff, B. C. (Boris C.); Opler, Paul A.; Schmidt, Jason P.; Buckner-Opler, Evi
Biology and over-winter survival of Iris yellow spot virus in Colorado
Contributor:Szostek, Stephanie Aspen
Iris yellow spot virus (IYSV) (Family: Bunyaviridae, Genus: Tospovirus) and its insect vector, Thrips tabaci Lindeman, are of economic concern in onion (Allium cepa L.) growing regions worldwide. IYSV symptoms appear on ...
The ecology and evolution of plant-insect interactions among hybrid populations of the invasive plant, tamarisk (Tamarix sp.), in the western United States
Contributor:Williams, Wyatt I.
Tamarisk is one of the most abundant invasive tree species in the western United States. Several species belonging to the genus Tamarix were imported intentionally to the U.S. in the mid-nineteenth century. Currently, most ...
Studies on the walnut twig beetle (WTB), Pityophthorus juglandis, in relation to its association with Geosmithia morbida, its survival in felled logs, and its sensitivity to temperature extremes
The walnut twig beetle (WTB, Pityophthorus juglandis) is the vector of Geosmithia morbida and a causal agent of thousand cankers disease (TCD) of black walnut (Juglans nigra). In addition to aggressive feeding by WTB, ...
Modeling Culex tarsalis Coquillett abundance on the northern Colorado Front Range using a landscape-level approach
Endemic and emerging vector-borne diseases are major health problems, and some of them are unlikely to be eliminated regardless of control efforts. The applications for remote sensing and Geographic Information System (GIS) ...
Herbicide absorption and translocation by Eurasian watermilfoil and hydrilla
Contributor:Vassios, Joseph D.
Hydrilla and Eurasian watermilfoil are submersed invasive species that occur commonly across the US. These species are aggressive competitors, and form dense, monotypic stands. Dense stands of these species form mats on ...
Mite and fungal associates on mountain pine beetles attacking three pines species in northern Colorado
Contributor:Mercado, Javier E.
During its life cycle, mountain pine beetle (Dendroctonus ponderosae) interacts with phoretic organisms such as mites, nematodes, fungi, and bacteria. The types of associations these organisms establish with the mountain ...
Aspen mortality in the Colorado and southern Wyoming Rocky Mountains : extent, severity, and causal factors
Quaking aspen (Populus tremuloides Michx) is a deciduous hardwood tree widely distributed throughout North America. In Colorado, quaking aspen is found on a wide variety of sites, from the lower-elevation foothills of the ...
Butterfly research in Boulder County, Colorado 2004-2007
Contributor:Chu, Janet Pattee; Sportiello, Mike
In 2007, surveys recording the numbers of butterfly species and individuals were performed on a total of 39 survey days in 15 different locations within Boulder County. These surveys were conducted in a variety of habitats, ...