Department of Agricultural Biology
These digital collections include theses, dissertations, faculty publications and datasets from the Department of Agricultural Biology. Also included is a video documentary titled
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Pavement, pests, & parasitoids, oh my! Elm herbivores and their natural enemies in the urban forest
Urban areas are the fastest growing habitat type in the world, and an increasing proportion of the United States and global population lives in urban areas. Urban forests provide essential ecosystem services to rapidly ... -
Russian wheat aphid, Diuraphis noxia (Kurdjomov), ecology and reproduction on five noncultivated grass hosts in high elevation environments
Russian wheat aphid ecology, occurrence, movement, and reproduction on five noncultivated grass hosts was examined in high elevation environments. The objectives of the first study were to: 1) identify Russian wheat aphid ... -
Mountain pine beetle-caused lodgepole pine mortality from the 1980's and subsequent fire occurrence in Colorado
A need for understanding the interaction between post-epidemic bark beetle forest stands and subsequent fire occurrence has escalated due to recent (1999-2010) unprecedented epidemic mountain pine beetle in lodgepole pine ... -
Xenobiotics translocate in aquatic plants: a case study using three aquatic herbicides
When invasive aquatic weeds dominate aquatic ecosystems there are numerous negative impacts. Milfoil (Myriophyllum spp.) and hydrilla [Hydrilla verticillata (L.f.) Royle] are the most costly aquatic plants to manage in the ... -
Lophodermella needle cast pathosystem: the phylogenetic relationships, host-mycobiota interactions, and molecular diagnosis of Lophodermella pathogens on Pinus
The impact of needle diseases in conifer stands has increased worldwide due to regional variations of warmer and wetter climates that spur the activity of needle pathogens. Heavy needle cast infection results in loss of ... -
Quizalofop-resistant wheat: biochemical characterization of the AXigen™ trait and corresponding metabolism
A new weed management tool in wheat, the CoAXium™ Wheat Production System, incorporates quizalofop-resistant wheat, a specialized formulation of quizalofop (Aggressor™), and a stewardship management program for effective ... -
Protoporphyrinogen oxidase: origins, functions, and importance as an herbicide target site
Protoporphyrinogen IX oxidase (PPO)-inhibiting herbicides are effective tools to control a broad spectrum of weeds, including those that have evolved resistance to glyphosate. Their utility is being threatened by the ... -
Cytokinin-mediated processes promote heat-induced disease susceptibility of plants to bacterial pathogens
As global human populations continue to grow and temperatures are expected to rise, the pressure to increase food productivity and develop more stress-resistant crop varieties intensifies. Increased temperatures, a consequence ... -
Field population genetics of global Puccinia striiformis f. sp. tritici populations in wheat reveal a dynamic molecular battlefield
To view the abstract, please see the full text of the document. -
Beet curly top virus-beet leafhopper dynamics in hemp in Colorado
Hemp (Cannabis sativa L.) production within North America has dramatically increased in recent years following legislative changes in the 2014 and 2018 Farm Bills that allowed legal paths for its production. However, due ... -
Studies on the Odonata and Trichoptera of high-elevation lakes of northern Colorado and southern Wyoming
Freshwater biodiversity loss is a major concern, and global warming is already causing a significant role in species extinctions. The main goal of this research was to provide a baseline for specific aquatic insect species ... -
Evaluation of cover crops in reducing Spongospora subterranea inoculum through qPCR and microscopy assays
Cover crops have been used for years as an effective practice to manage soil-borne pathogens. Beside their other beneficial properties in enhancing soil quality and fertility, they can suppress soil-borne pathogens and ... -
Dataset associated with “An in-frame deletion mutation in the degron tail of auxin co-receptor IAA2 confers resistance to the herbicide 2,4-D in Sisymbrium orientale”
The natural auxin indole-3-acetic acid (IAA) is a key regulator of many aspects of plant growth and development. Synthetic auxin herbicides such as 2,4-D mimic the effects of IAA by inducing strong auxinic signaling responses ... -
Labeling of nonstructural carbohydrates in winter wheat stems
Fructans are polymers of fructose, which contain a terminal or subterminal glucose moiety. The biosynthetic pathway for the levan-type of fructan, found in wheat, has not been elucidated. These compounds are a significant ... -
Management and epidemiology of Cytospora perennial canker, Cytospora plurivora, in western Colorado
Cytospora canker is a ubiquitous disease in deciduous fruit tree systems in western Colorado. The research conducted herein, explores the host-pathogen-environmental framework which has enabled Cytospora plurivora to thrive ... -
Investigating fluroxypyr resistance in Bassia scoparia
Synthetic auxin herbicides are designed to mimic indole-3-acetic acid (IAA), an integral plant hormone affecting cell growth, development, and tropism. Recent developments in synthetic auxin herbicide research have produced ... -
Dataset associated with “Investigating the origins and evolution of a glyphosate-resistant weed invasion in South America”
The global invasion, and subsequent spread and evolution of weeds provides unique opportunities to address fundamental questions in evolutionary and invasion ecology. Amaranthus palmeri is a widespread glyphosate-resistant ... -
Curious case of chemotaxis in soft rot Pectobacteriaceae, The
Soft rot Pectobacteriaceae, Dickeya and Pectobacterium, are notorious for causing blackleg and soft rot diseases on more than 50% angiosperms such as potato, tomato, carrot, cabbage, and rice. In the United States, soft ... -
Biology and management of blackleg disease of potato caused by Dickeya dianthicola (ME23)
Potato is the most commonly consumed vegetable in the United States, where people each an average of 49.2 pounds per person per year. About 80% of potatoes in the US are produced in Idaho, followed by Washington, Wisconsin, ... -
Investigating the impact of soil type, soil moisture, and soil surface residue cover on the efficacy of Diflufenican
Diflufenican is a pre-emergent and early post-emergent herbicide that inhibits phytoene desaturase, an essential enzyme in the biosynthesis of carotenoids. It has been used effectively in overseas markets such as Europe ...
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