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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Investigation into potential non-target effects from the use of emamectin benzoate trunk injections for the management of emerald ash borer (Coleoptera: Buprestidae)
A potentially significant source of increased conflict in Colorado involving insecticide use in urban areas and honey bees (Apis mellifera L.) recently emerged with the establishment of the invasive species emerald ash ... -
RNA sequencing identifies genes putatively involved at the aphid-Buchnera symbiotic interface
In aphids, the supply of essential amino acids depends on an ancient nutritional symbiotic association with the gamma-proteobacterium, Buchnera aphidicola. The endosymbiont converts abundant non-essential amino acids into ... -
Combined effects of warming and drying on a temperate-to-boreal forest ecotone exert additive changes on soil microbiome structure and diversity
The soil microbial community is an important mediator of many ecosystem functions, so understanding dynamics under climate change. These responses could be more robust in transitional zones such as the temperate-to-boreal ... -
Using indaziflam for integrated weed management in managed and natural ecosystems
Indaziflam is a relatively new herbicide for natural area weed management. It is unique because it inhibits cellulose biosynthesis and it controls annual weeds as the seeds germinate. This soil active herbicide provides ... -
Integrated pest management of tomato/potato psyllid, Paratrioza cockerelli (SULC) (Homoptera: Psyllidae) with emphasis on its importance in greenhouse grown tomatoes
The tomato (potato) psyllid, Paratrioza cockerelli (Sulc), has developed into a key insect pest of greenhouse tomatoes of western North America and few options have been available for its management. A series of trials ... -
Environmental predictors of annual incremental Populus deltoides growth, and riparian forest structure of the South Platte River in northeastern Colorado
Riparian forests are biologically diverse systems that provide essential ecological services, such as flood attenuation, bank stabilization, habitat, nutrient cycling, temperature regulation, etc., for the landscapes they ... -
Aspects of weed resistance to auxinic herbicides
Synthetic auxins have been widely used for selective control of broadleaf weeds since the mid-1940s. After more than 70 years using synthetic auxin herbicides, there are 41 different resistant species reported. Weed ... -
Understanding weed biology and herbicide resistance to improve weed management
Weed management is essential in agriculture, natural areas, and rangelands. Weed control has mainly relied on herbicides. These chemical compounds are a low-cost option, easy to apply, and very efficient to eliminate weeds. ... -
Investigations into the nature of the potato psyllid toxin
The potato or tomato psyllid, Paratrioza cockerelli (Sulc) (Homoptera: Psyllidae) is a pest of many solanaceous crops in the western U.S. and causes a disease in potatoes and tomatoes known as "psyllid yellows". The disease ... -
Diet matters in the growth of captive African white spotted assassin bug Platymeris biguttatus (Hemiptera: Reduviidae)
The African white-spotted assassin bug, Platymeris biguttatus (L. 1767) (AWSAB) is a large bodied true bug, popular in both zoo and hobbyist living collections. The popularity of this species can be attributed to its high ... -
Whole genome analysis of the koa wilt pathogen (Fusarium oxysporum f. sp. koae) and development of molecular tools for early detection and monitoring
Pathogenic and non-pathogenic Fusarium oxysporum are morphologically indistinguishable from each other. Pathogenic F. oxysporum f. sp. koae (Fo koae) is a limiting factor for low to mid elevation, below 610m (2000 ft), ... -
Survey of the arthropod fauna associated with hemp (Cannabis sativa L.) grown in eastern Colorado, A
Industrial hemp was found to support a diverse complex of arthropods in the surveys of hemp fields in eastern Colorado. Seventy-three families of arthropods were collected from hemp grown in eight counties in Colorado in ... -
Physiological and biochemical mechanisms behind the fast action of glufosinate
Glufosinate is one of the few herbicides that are still effective for controlling herbicide resistant weeds, but its performance is often inconsistent and affected by environmental conditions. It inhibits glutamine synthetase ... -
Initiating a plant herbivory response increases impact of fungal pathogens on a clonal thistle
Cirsium arvense, or Canada thistle, is one of the most detrimental weeds for agricultural production and rangeland health. The autecious fungus, Puccinia punctiformis, or CT‐rust, shows potential as a control agent but ... -
Plasticity, allelic diversity, and genetic architecture of industrial hemp (Cannabis sativa L.)
The first time in United States history that hemp was legally distinguished from high-THC Cannabis (marijuana) was in 2014 when the Farm Bill was passed. Although the two crops had been distinguished by their usage for ... -
Understanding the disease ecology of the corn bacterial leaf streak pathogen Xanthomonas vasicola pv. vasculorum
Bacterial leaf streak, caused by Xanthomonas vasicola pv. vasculorum (Xvv), is an emerging disease of corn in North and South America. Based on the combined $52.4 billion value of the corn industry, early reports of Xvv ... -
Abiotic and biotic factors influencing western United States coniferous forests
In the next decade, climate models suggest that global temperatures will continue to rise. In the western United States, increases in temperatures and changes in precipitation patterns will escalate the risk of drought ... -
New paradigm in rangeland restoration: using a pre-emergent herbicide to assist in native plant establishment and release, A
Invasive winter annual grasses (IWAG), especially downy brome (Bromus tectorum L.), are a significant threat to rangeland ecosystems in the western United States. Invasions in natural ecosystems can cause severe negative ... -
Characterization of Sorghum bicolor genotypes under varying water regimes
Agriculture is the largest consumer of fresh water, accounting for 70% of use globally. The availability of water is expected to decrease in future climate models. It is imperative to develop crop varieties with improved ... -
Soil microbial community dynamics associated with agricultural crops
It could be argued that the sustainability of agriculture hinges on our ability to understand and manage the interactions that occur between agricultural crops and microbial communities that reside in the soil. Soil microbes ...
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