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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 16 of 16 for “"clothianidin"”.
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Evaluation of native bee nesting rates and beetle community assemblages in the presence of clothianidin in the soil of natural areas
… the impact of the common neonicotinoid clothianidin, on native bee and beetle communities in restored prairie settings. For native bees, we found that nesting probability and nesting abundance increased in sites contaminated with clothianidin. Conversely, we did not see differences in …
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Assessing Potential Solutions to Mitigate Pollution from Neonicotinoid Seed Coatings
Thiamethoxam and clothianidin are two neonicotinoids used in seed coatings for crops such as corn and soybeans. Both neonicotinoids have high solubility in water, so they are prone to transport via leaching and runoff. This thesis is comprised of two studies that evaluated potential solutions to …
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Assessing the Effects of Chronic Neonicotinoid Insecticide Exposure on Aquatic Insects using Multiple Experimental Approaches
… I compared the effects of imidacloprid, clothianidin, thiamethoxam on the model aquatic insect, Chironomus dilutus. Reduced emergence success, advanced emergence timing, and male-biased sex ratios were observed across all compounds tested. Imidacloprid and clothianidin reduced emergence …
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FATE, TRANSPORT, AND MIXTURE TOXICITY OF TRANSGENIC BACILLUS THURINGIENSIS CORN (ZEA MAYS) AND ASSOCIATED INSECTICIDES
… corn include a neonicotinoid seed coating, clothianidin, and a pyrethroid insecticide applied in-furrow, tefluthrin. The goal of my dissertation was to measure the environmental fate of the Cry1Ab Bt corn protein, clothianidin, and tefluthrin and determine if measured concentrations could be …
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Pest Management Studies of Early Season and Stalk-Boring Insects on Corn in Virginia
… stand and yield in the Poncho 1250 (1.25 mg clothianidin / kernel) treatment when compared to the Poncho 250 (0.25 mg clothianidin / kernel) and untreated plots. This information was used to develop fall EILs and economic thresholds for white grubs.
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Effects of neonicotinoids and fungicides on soil invertebrate communities and litter decomposition within restored prairie
… prairie plots treated with a neonicotinoid (clothianidin) and a fungicide (Captan). Soil invertebrate communities in plots treated with a combination of neonicotinoids and fungicides were nearly half as dense as they were in plots without pesticides, reflecting reductions spanning from 37 to …
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Impacts of organic and conventional neurotoxic pesticides on a pest and a pollinator in almond agroecosystems (Prunus dulcis)
… on the toxicity of the insecticides acetamiprid, clothianidin, and spinosad (a natural fermentation product made up of a mixture of Spinosyn A and D) were assessed in a series of bioassays with first instar A. transitella larvae from a laboratory strain (CPQ). An increase in the toxicity of …
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Analysis of Strobilurin Fungicides, Neonicotinoid Insecticides and Degradation Products in Atmospheric Particles
… that were detected included imidacloprid, clothianidin, acetamiprid, and thiamethoxam. The highest detection frequency in 2016 was shown for imidacloprid (47%), while in 2018 acetamiprid had the highest detection frequency (67%). This is the first time that one of the neonicotinoid …
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Evaluating Agricultural Best Management Practices to Mitigate Neonicotinoid Transport in Water and Soil
… thiamethoxam (TMX) and its metabolite clothianidin (CLO) in treated agricultural fields. Due to dry weather and other complications, runoff and leachate data could not be statistically analyzed. Soil samples indicated that cover crops had no effect on insecticide retention, so cover …
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Investigating host plant selection of harlequin bug, Murgantia histrionica (Hahn), in order to improve a trap cropping system for its management
… imidacloprid, thiamethoxam, dinotefuran, and clothianidin were toxic to HB nymphs; LC50 = 0.57, 0.52, 0.39, and 0.39 mg ai/liter, respectively. Field experiments were conducted to evaluate the efficacy of these insecticides over time when applied as a one-time drench, and all were found to …
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Species survey, monitoring and management of economically important stink bug species in eastern Virginia
… Generally, the neonicotinoids, dinotefuran and clothianidin, were more toxic to A. hilare, while thiamethoxam and acetamiprid were more toxic to E. servus. In soybean field efficacy trials, dinotefuran performed comparably to the organophosphates and pyrethroids. Laboratory bioassays with …
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Removal of organic compounds from aquatic environments by advanced oxidation processes.
… L-1 each in artificial freshwater; acetamiprid, clothianidin, imidacloprid, thiacloprid, thiamethoxam, diuron, atrazine, dimethoate and 2,4-dichlorophenoxyacetic acid). The photocatalytic system was able to successfully remove a range of pesticides at the same time. Finally, a photocatalytic …
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The Characterisation Of Bee Nicotinic Acetylcholine Receptors
… change in the efficacious properties of clothianidin, without effecting the pharmacology of the endogenous agonist acetylcholine. In addition species-specific variation in the α1 subunits tested did not affect the antagonist actions of imidacloprid and thiacloprid. By creating a homology …
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Spatiotemporal Patterns of Distribution and Drivers of Neonicotinoid Insecticide Fate in Canadian Prairie Pothole Wetlands
… and soil particulates from previously treated (clothianidin) and untreated fields, meltwater showed the strongest relationship to initial spring concentrations in wetland water. Neonicotinoid concentrations increased with time in shallow temporary wetlands which appeared most at risk for annual …
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Biology and Management of Brown marmorated Stink Bug, Halyomorpha halys (Stål), in Agricultural and Urban Environments
… were conducted to determine the LC50 values of clothianidin, dinotefuran, imidacloprid, and thiamethoxam against H. halys nymphs using a systemic application method. Those LC50 values were found to be 0.077, 0.013, 0.068, and 0.018 ppm, respectively. Field experiments conducted in Virginia in …
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Quantification of neonicotinoid residues in soils and dust drift in conservation reserve program fields in Illinois, USA
Neonicotinoids, a new class of systematic insecticides, are commonly used as seed coat treatment for crop protection. In the United States, neonicotinoid-treated seeds are planted on most corn acres and over half of the soybean acres. Neonicotinoids are also registered to use on other major field …