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 10 of 10 for “"propoxur"”.
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Sublethal vapor-induced responses of the German cockroach to commercial pesticide formulations
… laboratory strain (VPI) was compared to two propoxur resistant field strains (Carver, Kenly) after exposure to four propoxur formulations and their blanks. Vapors from the petroleum-based oil and aerosol formulations induced significantly more dispersal than vapors from water-based …
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Symbiont-Mediated Modification of Mosquitocide Toxicity in the Dengue Vector, Aedes aegypti
… and toxicity of two mosquitocides, propoxur and naled, and the capacity of bacterial symbionts to modify the detoxification of the mosquitocides and, thus, alter their toxic action in the yellow fever mosquito, Aedes aegypti. The insecticide synergists piperonyl butoxide (PBO), …
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Effects of an insecticide on German cockroach behavior
… The effects of vapors from a formulation of 1% propoxur in oil were compared with vapors from a mineral oil control. Vapors from the control had little effect on cockroach behavior. Adult males, adult females, and middle instars were repelled from aquaria containing the insecticide vapors. Early …
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Studies on the excretion of pesticides in human milk as a means of investigating exposure and assessing the risk to infants in Indonesia
… An exposure assessment model for residential Propoxur use in Indonesia was developed. It revealed that despite daily exposures, only low levels of Propoxur were likely to be absorbed and Propoxur exposure was unlikely to have toxicological effects. Despite more than 50 years of research, the …
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Fluoromethyl ketone prodrugs: Potential new insecticides towards Anopheles gambiae
… compound is within 3-fold of the toxicity of propoxur to wild type An. gambiae (LC₅₀ values of 106 and 39 µg/mL, respectively). Most significantly, 3-2d was much more toxic than propoxur to multiply-resistant (Akron) strain An. gambiae (LC₅₀ = 112 and >5,000 µg/mL, respectively). However, thus …
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Trifluoromethyl ketones: Potential insecticides towards Anopheles gambiae
… gambiae within 3- to 4-fold of the toxicity of propoxur. However, thus far we have not been able to link the toxicity of these compounds to a cholinergic mechanism. Pre-incubation studies suggest that significant hydrolysis of these compounds to TFKs does not occur or 22 h at pH 7.7 or 5.5. …
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The effects of three insecticides on oothecal-bearing German cockroach, Blattella germanica L., (Dictyoptera: Blattellidae), females
… were exposed to filter paper impregnated with propoxur, malathion, and diazinon. Premature oothecal drop was monitored during the exposure period and for 24 hours thereafter. Determinations of female mortality were also made 72 h post-exposure. Oothecae from exposed females were observed for …
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Revisiting aryl N-methylcarbamate acetylcholinesterase inhibitors as potential insecticides to combat the malaria-transmitting mosquito, Anopheles gambiae
… to the commonly used agricultural insecticide, propoxur (9a, LC₅₀ = 0.037 mg/mL). In total, seventy aryl carbamates were screened for their inhibition potency and contact toxicity towards An. gambiae. The common final step in all of these syntheses was the carbamoylation of a phenol, which …
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Improving the risk assessment of short-term stormwater and effluent discharges to aquatic environments
… the TAC-approach was not effective for ammonia, propoxur or contaminant mixtures. Pragmatic approaches to assess the risk of pulse discharges are discussed considering the experimental data produced in this thesis. Continuous toxicity thresholds were always protective of pulse exposures. The …
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Small Core Heterocyclic Carbamates and Carboxamides: Resistance-breaking Acetylcholinesterase Inhibitors Targeting the Malaria Mosquito, Anopheles gambiae
Malaria is one of the deadliest diseases known to mankind. In 2010, 219 million cases were reported, and 666,000 deaths were attributed to this disease. In the past, pyrethroid-treated mosquito nets have shown efficacy in reducing malaria transmission in many malaria endemic regions. However, an …