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Showing 1 to 16 of 16 for “"carbaryl"”.
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The fast atom bombardment mass spectrometric analysis of the carbamate pesticide carbaryl
The carbamate pesticide, carbaryl, was quantitatively studied using fast atom bombardment mass spectrometry (FAB-MS). Mass spectra were obtained in the positive ion-mode using both 2-nitrophenyloctyl ether (NPOE) and 3-nitrobenzyl alcohol (NBA) as matrix liquids. The sample was applied by three …
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Sublethal dosage effects of carbaryl on honey bee (Apis mellifera (L.)) colonies
The sublethal dosage effects of carbaryl were studied in honey bee (Apis mellifera L.) colonies. Carbaryl was fed to colonies during a 14-day period in a 0.95 M sucrose solution. Carbaryl dosages were based on 0.0036, 0.0178, and 0.0356 ug/bee/day, and concentrations approximated 0.09, 0.44, and …
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Environmental fate and effects of atrazine, metolachlor, carbaryl and chlorothalonil in lotic ecosystems
… stream characteristics. Atrazine, metolachlor, carbaryl, and chlorothalonil have high usage rates in the U.S. and are detected in streams at concentrations that might have adverse effects on aquatic organisms. In this study, pesticide abundance and toxicity were quantified. Pesticide …
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Mycotoxins Risk in Maize Fields in Relation to Insect and Edaphic Factors in South Dakota
… concentrations in conventional maize in carbaryl treated and untreated plots. However in Bt maize, only deoxynivalenol concentrations were positively related to caterpillar kernel damage in carbaryl-treated plots. Sap beetle abundance was not related to mycotoxin concentrations in …
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Biology and control of the lesser mealworm: Alphitobius diaperinus, a structural pest in poultry houses
… Wettable powder formulations of permethrin and carbaryl when sprayed upon styrofoam were comparable in residual activity. Residual activity of both compounds was less when applied to unpainted plywood. The emulsifiable concentrate formulation of permethrin proved to be ineffective. Regression …
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Degradation Of Selected Organic Agrochemicals In Artificial Soil Slurry Systems By Anodic Fenton Treatment
… of different groups of agrochemicals, including carbaryl, mecoprop, paraquat, 4.6-odinitrocresol, p-nitrophenol and dinoseb, were studied. The results indicate that humic acid content is the key factor that slows down pesticide degradation, most probably due to its pH buffering and adsorption …
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Sublethal effects of an acetylcholinesterase-inhibiting pesticide on fitness-related traits in the western fence lizard (Sceloporous occidentalis)
… research focused on describing the effects of carbaryl, an AChE-inhibiting pesticide, on several fitness-related traits in the western fence lizard (Sceloporus occidentalis). Reptiles are the least studied vertebrate taxon in ecotoxicological studies even though contaminants are suspected in …
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The study and optimization of the Enzyme Inhibition Bioassay 96 for the detection of organophosphate and carbamate compounds
… were used in this project were the pesticides carbaryl, chlorpyrifos, diazinon, dichlorvos, and parathion. The pesticides chlorpyrifos, diazinon, and parathion are organophosphorothioates, which are organophosphates with a P=S bond, and when these compounds are oxidized the compounds are …
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Adrenal steroid, blocking agent, and social stress effects on northern fowl mite population development on Leghorn chickens and toxicological evaluation of selected acaricides (Acarina: <i>macronyssidae</i>)
… and antibody a minor role in mite resistance. Carbaryl was shown to be the compound most toxic to northern fowl mites of those registered in Virginia for application to poultry. Malathien resistance was noted in mites from a commercial poultry house. The synthetic pyrethroid permethrin was …
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The morphology, biology and control of Ceroplastes ceriferus (Fabricius) and Ceroplastes sinensis Del Guercio in Virginia including a redescription of Ceroplastes floridensis Comstock (Homoptera: Coccoidea: Coccidae)
… here recorded on Ceroplastes for the first time. Carbaryl, carbofuran, Imidan®, malathion, diazinon, ethion, carbophenothion, monitor, Supracide®, Orthene®, dimethoate and oxydementonmethyl, sprays and phorate, disulfoton arid aldicarb granules were the materials tested for control of C. …
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Relationships among spread-sticker application, blossom cap retention, berry scarring, thrips populations, and Botrytis bunch rot in 'Chardonnay' grapes, and a survey of pesticide use and pest severity in Virginia vineyards in 1990 and 1991
… most commonly used were captan, glyphosate, and carbaryl.
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Determination of pesticides and chloroanisoles in water samples using gas chromatography-mass spectrometry.
… resolution and speed of analysis for mixtures of carbaryl (a carbamate), lindane (an organochlorine), chlorpyrifos and chlorpyrifos-methyl (both organophosphorus compounds) and simazine (a triazine herbicide). These methods were then applied to the determination of pesticides spiked into surface …
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The use of purified enzymes for the early assessment of toxicity
… induced by 10 mg/ℓ of atrazine, malathion, or carbaryl, and 150 to 500 mg/ℓ of 2,4-D. Inhibitory effects induced by sulfanilamide appeared to be slightly enhanced by the addition of Cd²⁺, Ni²⁺, or Zn²⁺ cations. These findings, although preliminary, suggest that carbonic anhydrase demonstrates …
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Development of ultrasensitive electrochemical sensors based on nanocomposites for environmental applications
… in the next few decades. Among them, carbaryl is extensively applied in grain and has an adverse impact on the cellular metabolic mechanism and mitochondrial function. Moreover, the pH of the water solution is another vital factor affecting biological and chemical processes in water, …
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<i>Neoseiulus fallacis</i> (Garman) (Acari: Phytoseiidae) as a potential biological control agent for spider mites (Acari: Tetranychidae) in Virginia vineyards
… insecticides tested in the laboratory bioassays, carbaryl, azinphos-methyl, phosmet, cyhexatin, and pyridaben all caused significantly higher mortality than the control treatment. Fungicides tested were not toxic to the predator, but three herbicides caused high mortality. Glufosinate caused 100% …
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Effects of insecticides on potato leafhoppers Empoasca fabae (Harris) and its predators
… the most selective, while among the carbamates, carbaryl was the most selective.