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Showing 1 to 20 of 36 for “"Malathion"”.
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Some aspects of the analytical chemistry of malathion
… colorimetric method for the determination of malathion (an organophosphorus pesticide) has led to the identification of the major cause of all the problems with which the method suffers. The method, which involves the extraction of the copper (II) complex or the hydrolysis product of malathion …
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An Investigation of the Effect of Malathion on Adaptive Plasticity of Pseudacris sierra
… a scientific experiment that investigates how malathion may impact adaptive plasticity in the Sierran Treefrog, <em>Pseudacris sierra.</em> Anuran tadpoles suffer high mortality rates due to predation. In response to strong selective forces relating to these high predation rates, tadpoles …
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Effect of some of the climatic factors on residues of the phosphorus insecticide, malathion
Call number: LD2668 .T4 1958 E32
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Effect of some of the climatic factors on residues of the phosphorus insecticide, malathion
Call number: LD2668 .T4 1958 E32
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The reciprocal influence of trematode parasites and malathion on developing pickerel frogs (Rana palustris)
… to the widely used organophosphate insecticide malathion. LC50 values ranged from 16.5 – 17.4 mg/L, within the range reported for other amphibian species. I found no differences in susceptibility to malathion among parasite treatments. Nevertheless, this crucial question remains to be tested in …
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Cross resistance to organophosphorus compounds in malathion- and diazinon- resistant strains of the German cockroach
… of Blattella p:ermanica ( L.), one resistant to malathion and the other resistant to diazinon. Comparison of this data with similar data for a normal susceptible strain of the same species reveals that development of resistance to malathion in this species is highly specific imparting no …
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The mobility of malathion in a silt loam soil as affected by phosphate and naturally occurring organic acids
A laboratory study of the mobility of Malathion in the soil environment was conducted.
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The effects of different levels of dietary protein on the toxicity and metabolism of malathion and parathion and their oxygen analogues
… of two widely used organophosphate insecticides, malathion and parathion, and their oxygen analogues were investigated in rats fed different levels of dietary protein. Male weanling rats were pair-fed either 5 or 20% casein diets for 10 days and control animals received a 20% casein diet ad …
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Immunotoxicity of Pesticide Mixtures and the Role of Oxidative Stress
… mouse thymocytes were exposed to lindane, malathion, and permethrin, either separately or in mixtures of two pesticides, in concentrations ranging from 37.5 uM to 1mM. These exposures caused both apoptotic and necrotic cell death in thymocytes as evaluated by 7-aminoactinomycin-D, …
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The Effect of Plant Nutrition on the Reproductive Rate and Susceptibility to Malathion of Two Strains of the Two-Spotted Spider Mite, Tetranychus telarius (L.)
… on the reproductive rate and susceptibility to malathion of two strains of the two-spotted spider mite. The two strains of mites used as test organisms are characterized by their widely different levels of susceptibility to phosphate acaricides. Lima bean plants were grown in quartz sand and …
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Efeito dos inseticidas organofosforados em LVE de Campo Novo dos Parecis - MT e sua degradação por processo oxidativo avançado.
… potential soil leach of the methyl parathion, malathion, monocrotophos and metamidophos and the results were compared to the methyl parathion and monocrotrophos, with tests in leach columns by OECD. After initial investigations, essays were made about the soil modifications after contaminations …
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Neurotoxic effects of malathion and lead acetate on the blood-brain barrier: Disruptive effects caused by different mechanisms examined with an in vitro blood-brain barrier system
Organophosphates (OP) such as malathion are organic derivatives of phosphoric acid with broad use in everyday life throughout the world, especially as insecticides. Lead particles can accumulate in soil and from there leach into our water supplies. Interaction with the environment offers …
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Pesticide Mixtures Induce Immunotoxicity: Potentiation of Apoptosis and Oxidative Stress
… of interest were lindane (an organochlorine), malathion (an organophosphate) and piperonyl butoxide (PBO; a synergist). Based on minimum cytotoxicity (> LC25), the following concentrations were chosen for the pesticide mixture studies: 70μM lindane (Lind), 50μM malathion (Mal) and 55μM PBO. …
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Development of stimulus-responsive polydiacetylene systems for molecular colorimetric detection
… capable of binding pesticide malathion, was conjugated with diacetylene monomer, followed by the conjugate polymerization under UV irradiation to form a stimulus-responsive system. The rapid, specific and sensitive colorimetric detection of malathion was demonstrated both in …
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Screening of herbicides for selective weed control in African marigold (Tagetes erecta)
… A tank mix of topramezone with the insecticide malathion was evaluated to determine if tolerance of African marigold to topramezone is achieved through differential metabolism involving cytochrome P450. Five and 15 DAA, malathion caused no increase in visual injury (P = 0.3986 and P = 0.1315). …
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Comparative studies of the microbial composition and diversity of container-dwelling mosquitoes
… concentrations of atrazine, permethrin, and malathion affects the composition and diversity of mosquito gut microbiota. Bacterial community composition differed according to sample type (larval stage vs. adult stage vs. water sample), but not by pesticide treatment. Bacterial OTU richness was …
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Management of Spotted Lanternfly (Lycorma delicatula) Overwintering Egg Masses and Multiple State Records of Aculops ailanthi, the Potential Biological Control Agent of Tree-of-Heaven (Ailanthus altissima)
… masses. Furthermore, in 2023, field trials of malathion and Beauveria bassiana biopesticides were investigated. I found substantial hatch reduction from malathion in all bioassays and field trials. Other pesticides tested in laboratory bioassays demonstrated varying hatch reductions across …
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Sublethal vapor-induced responses of the German cockroach to commercial pesticide formulations
… of cockroaches to the vapors of diazinon, malathion, and cyfluthrin indicated that the class of pesticide can also influence the dispersal response. Strain differences were found in experiments with the propoxur formulations, their blanks, malathion, and cyfluthrin. Slow dispersal precluded …
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Bulk deposition of pesticide mixtures in a Canadian prairie city and the influence of soil temperature fluctuations on 17β-estradiol mineralization
… contained mixtures of two or more pesticides. Malathion and glyphosate were the largest contributors to bulk deposition in 2010 and 2011, respectively. A second study examined the mineralization of 2,4-D and 17β-estradiol using a novel in-field soil microcosm study and a series of laboratory …
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