Search Results for: Polyethoxylated Tallowamine

Abstract: Environmental and toxicological characteristics of formulated pesticides may substantially differ from those of their active ingredients or other components alone. This phenomenon is demonstrated in the case of the herbicide active ingredient glyphosate. Due to its extensive application, this active ingredient was found in surface and ground water samples collected in Békés County, Hungary, …

Abstract: Glyphosate, is a broad-spectrum, nonselective, systemic herbicide, existing in the form of the acid itself or formulated as a salt. Roundup consists of the glyphosate isopropylamine (IPA) salt, water and a surfactant, often a polyethoxylated tallowamine, POEA. Glyphosate inhibits 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) in the shikimate pathway, which leads to formation of aromatic amino acids. …

Abstract: The widespread use of pesticides raises the possibility that non-target organisms might also be affected. To assess this, the traditional approach has been to conduct short-term laboratory experiments spanning a range of lethal concentrations and some longer-duration experiments at sublethal concentrations. While this approach has been very useful, less attention has been paid to …

Abstract: Toxicity assessments on nontarget organisms have largely been addressed using short‐term, single‐species laboratory experiments. Although extremely helpful, these experiments inherently lack many pervasive ecological stressors found in nature. Though a substantial challenge, incorporating these ecological stressors in contaminant studies would shed light on potential synergistic effects. For the world’s leading herbicide, glyphosate, we know …

Abstract: The world wide and continuously increasing contamination of aquatic and terrestrial ecosystems with pesticides and other agrochemicals is considered as a main factor causing global amphibian declines. Glyphosate, the most commonly used nonselective systemic herbicide, is sold under a variety of commercial names (e. g. Roundup® and Vision®), and is promoted by the introduction …

Abstract: With the increased use of glyphosate-based herbicides (marketed under several names, including Roundup and Vision), there has been a concomitant increased concern about the unintended impacts that particular formulations containing the popular surfactant polyethoxylated tallowamine (POEA) might have on amphibians. Published studies have examined a relatively small number of anuran species (primarily from Australia and …

Abstract: The responses of five North American frog species that were exposed in an aqueous system to the original formulation of Roundup were compared. Carefully designed and un-confounded laboratory toxicity tests are crucial for accurate assessment of potential risks from the original formulation of Roundup to North American amphibians in aquatic environments. The formulated mixture …

Abstract: Pesticides are always used in formulations as mixtures of an active principle with adjuvants. Glyphosate, the active ingredient of the major pesticide in the world, is an herbicide supposed to be specific on plant metabolism. Its adjuvants are generally considered as inert diluents. Since side effects for all these compounds have been claimed, we …

Abstract: Context – Among the 134 million hectares of genetically modified plants growing worldwide in 2009, more than 99.9 % are described as pesticide plants (Clive 2009). Around 80 % are tolerant to Roundup, a glyphosate based herbicide. Its use on GMOs is thus amplified, and this phenomenon shed a new light on the problem …

Abstract: Gyphosate‐basedherbicides are among the most widely used pesticides in the world. We compared the acute toxicity of the glyphosate end‐use formulation Roundup Original® to four North American amphibian species (Rana clamitans, R. pipiens, R. sylvatica, and Bufo americanus) and the toxicity of glyphosate technical, the polyethoxylated tallowamine surfactant (POEA) commonly used in glyphosate‐based herbicides, …