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.
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Showing 1 to 20 of 27 for “"nontarget"”.
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Nontarget Effects of Herbicides on Soybean Fungi and Tissues
Alternaria sp., Colletotrichum dematium var. truncata, Macrophomina phaseolina and Phomopsis sp., isolated from soybean (Glycine max) seeds, differed in tolerance to paraquat as measured by mycelial production, linear mycelial growth, spore germination and glucose consumption. Mycelial discs o
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The Effects of Three Rodenticides on Nontarget Small Mammals and Invertebrates
Mortality of non-target small mammals and invertebrates using 3 rodenticide treatments (pre-baited zinc phosphide, pre-baited strychnine, and strychnine alone) was evaluated in western South Dakota. Rodenticides were applied September 22-24, 1983 on 15 black-tailed prairie dog (Cynomys …
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Inferring rare bumble bee species occurrences from nontarget bumble bee assemblages
… and complex habitat requirements, I explored nontarget bumble bees as potential surrogates for inferring or predicting the local presence of B. affinis, focusing on taxonomic diversity (richness, abundance, composition), co-occurrence patterns, multispecies indicators, and B. affinis detection …
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Effects of color CRT misconvergence, target size, and nontarget density on visual search performance
… to examine the interactions among target size, nontarget density, and misconvergence type and degree upon subjective and objective human performance indices. Ten participants performed a visual "search-and-select" task on a color CRT computer workstation. Following each trial in this procedure, …
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Nontarget Avian Use of DRC-1339 Treated Plots During An Experimental Blackbird Control Program in Eastern South Dakota
… migration. The potential negative impact on nontarget avian species, in particular ring-necked pheasants (Phasianus colchicus), was evaluated during the treatment periods, March to April 1998 and 1999. Nontarget birds used treated plots more than adjacent untreated unbaited reference plots …
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Control strategies for the zebra mussel, Dreissena polymorpha, and the Asian clam, Corbicula fluminea: comparative stress responses and nontarget impact
… a surfactant -based chemical control agent, the nontarget impact associated with the control agent, and the use of the Asian clam as a biomonitor of the control agent. Effects of intermittent (2-4 hr/day) treatments with chlorine or bromine at levels of 0.5 and 1.0 mg/L (total residual oxidant) …
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Host specificity of microsporidia: Physiological and ecological considerations
… pathogens of insects. In the first study, 49 nontarget lepidopteran species indigenous to North America were fed five biotypes of microsporidia which occur in European populations of Lymantria dispar but do not occur in North American populations of L. dispar. These microsporidia are …
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The Effects of Reinforcing Operant Variability on Task Acquisition
… points on a variable interval schedule for nontarget responses occurring less than 3% of the time. The any condition subjects received additional points on a variable interval schedule for any nontarget response. Control subjects received points only for target responses. All variability …
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Effekte des Anbaus von Bt-Mais auf Nichtzielarthropoden der Krautschichtfauna : Monitoringorganismen und praktikable Erfassungsmethoden
… (Mon810, cultivar Novelis) cultivation on nontarget organisms of the arthropod community compared with an isogenic maize line (cultivar Nobilis) with and without an insecticide treatment. Furthermore, suitable monitoring organisms and appropriate methods are recommended for Post Market …
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The synthetic pyrethroid Ectiban permethrin as a treatment in the pest management of flies in caged-layer poultry houses
… house fly, I determined its effect on selected nontarget parasites and predators which may occur in chicken houses. The goal of the research is potent insecticide compatible with an integrated control approach for synanthropic flies.
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Development and Validation of a Battery of Emotionally Evocative Film Clips for Use with Young Children
… elicited the target emotion more so than nontarget emotions according to both coder ratings and child self-report. Associations between reactivity to the clips and child age and sex were limited. Several significant, meaningful associations between reactivity to clips and …
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Evaluation of Novel Carbamate Insecticides for Neurotoxicity to Non-Target Species
… especially organophosphates, in several nontarget vertebrate organisms. The NTE activity in the presence of novel carbamate insecticides ranged from 93% to 116% of the control, while in the commercial group, bendiocarb significantly inhibited NTE, leaving only 76.5% of the initial …
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Lateral Movement of Herbicides on Golf Course Fairways and Effects on Bentgrass Greens
… follow two hours after treatment to prevent nontarget injury.
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Ammonia-monooxygenase-mediated cometabolic biotransformation and abiotic transformation of micropollutants
… TP274) were identified by suspect screening and nontarget screening. The tentative TP structures were proposed based on MS2 spectra. Ammonia monooxygenase (AMO) was the responsible enzyme, given the competitive inhibition of asulam on AMO, and the instantaneous cease of asulam biotransformation …
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Floral derived compounds as attractants for agricultural pests in the family Noctuidae
… traps. During the field trials large numbers of nontarget insects were also captured, including beneficial insects and pest species. By using green coloured traps captures of beneficial hymenoptera (Syrphidae and Apoidea) were significantly reduced. Taken together, the current findings provide …
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Effects of an acute bout of aerobic exercise on cognition and academic performance in college-aged individuals with differing trait anxiety levels
… that were more difficult (i.e., incongruent and nontarget trials). Findings revealed generally greater accuracy, faster RT, and greater response variability for high-trait anxious individuals than low-trait anxious individuals on all tasks. However, these responses varied greatly depending on the …
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Density-shift Immunomagnetic Separation for Pathogen Retrieval from Complex Media
… sensitivity when the sample has a background of nontarget cells, proteins, and detritus. Reducing heterogeneity, removing inhibitory substances, and concentrating target cells by sample preparation could enable more rapid detection of pathogens from complex media, such as food samples. This …
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Biology of Chauliognathus spp. (Hentz) (Coleoptera: Cantharidae) in Virginia agroecosystems
… Lastly, because of their susceptibility to nontarget chemical exposure in agroecosystems, I tested the efficacy of both organic and conventional vegetable insecticides against C. marginatus adults. The highest mortality was seen in the acetamiprid, flupyridifurone, sulfoxaflor, and …
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Improving Integrated Pest Management in Sweet Corn System
… corn; repellency could impact their risk of nontarget effects by reducing exposure. I found that there was no significant effect on the number of times honey bees visited the corn tassels or the number of other beneficial arthropods found. Lastly, I examined the residual toxicity of …
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