Glyphosate and glufosinate-based herbicides: fate in soil, transfer to, and effects on land snails

Druart, Céline; Millet, Maurice; Scheifler, Renaud; Delhomme, Olivier; Vaufleury, Annette de

doi:10.1007/s11368-011-0409-5

Cited by 32 publications

(14 citation statements)

References 39 publications

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“…It has been suggested that the same function POEA provides, by enhancing glyphosate transport into plant cells, also facilitates increased permeability in animal cells (Hedberg and Wallin, 2010). The potential for bioaccumulation of glyphosate has also been observed in terrestrial snails (Helix aspersa) fed a diet contaminated with glyphosate (Druart et al, 2011), water hyacinth (Eichhornia crassipes) exposed to pure glyphosate, and also in tissue of carp (Cyprinus carpio) and tilapia (Oreochromis mossambicus) that were exposed to environmentally relevant concentrations (Wang et al, 1994). Taken together, these results support the possibility of food chain contamination.…”

Section: Exposure To Glyphosate and Metabolites In Aquatic Environmentmentioning

confidence: 99%

Impact of glyphosate and glyphosate‐based herbicides on the freshwater environment

Annett

Habibi

Hontela

2014

J of Applied Toxicology

441

243

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Glyphosate [N-(phosphonomethyl) glycine] is a broad spectrum, post emergent herbicide and is among the most widely used agricultural chemicals globally. Initially developed to control the growth of weed species in agriculture, this herbicide also plays an important role in both modern silviculture and domestic weed control. The creation of glyphosate tolerant crop species has significantly increased the demand and use of this herbicide and has also increased the risk of exposure to non-target species. Commercially available glyphosate-based herbicides are comprised of multiple, often proprietary, constituents, each with a unique level of toxicity. Surfactants used to increase herbicide efficacy have been identified in some studies as the chemicals responsible for toxicity of glyphosate-based herbicides to non-target species, yet they are often difficult to chemically identify. Most glyphosate-based herbicides are not approved for use in the aquatic environment; however, measurable quantities of the active ingredient and surfactants are detected in surface waters, giving them the potential to alter the physiology of aquatic organisms. Acute toxicity is highly species dependant across all taxa, with toxicity depending on the timing, magnitude, and route of exposure. The toxicity of glyphosate to amphibians has been a major focus of recent research, which has suggested increased sensitivity compared with other vertebrates due to their life history traits and reliance on both the aquatic and terrestrial environments. This review is designed to update previous reviews of glyphosate-based herbicide toxicity, with a focus on recent studies of the aquatic toxicity of this class of chemicals.

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Section: Exposure To Glyphosate and Metabolites In Aquatic Environmentmentioning

confidence: 99%

Impact of glyphosate and glyphosate‐based herbicides on the freshwater environment

Annett

Habibi

Hontela

2014

J of Applied Toxicology

441

243

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“…The discovery of glyphosate in the body of the land snail Cornu aspersum (O.F. Müller) by Druart et al 11. suggested the ability of this herbicide to enter the food chain.…”

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confidence: 99%

“…Glyphosate is traditionally considered to be a chemical with relatively low ecological and toxicological side effects in terrestrial ecosystems 4 6 10 because the active ingredient inactivates rapidly when it reaches the soil surface 4 9 11 , but in aquatic environments it is known to be highly toxic 12 and recently it became suspected to be carcinogenic to humans 13 . Commercial products containing glyphosate seem to be more toxic than the active ingredient alone, possibly due to the surfactants used in the commercial solutions 9 .…”

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confidence: 99%

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Treatment by glyphosate-based herbicide alters life history parameters of the rose-grain aphid Metopolophium dirhodum

Saska

Skuhrovec

Lukáš

et al. 2016

Sci Rep

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Glyphosate is the number one herbicide in the world. We investigated the sub-lethal effects of this herbicide on the aphid Metopolophium dirhodum (Walker), using an age-stage, two-sex life table approach. Three concentrations of the herbicide (low - 33.5, medium - 66.9 and high - 133.8 mmol dm−3 of active ingredient) and distilled water as the control were used. The LC50 of the IPA salt of glyphosate on M. dirhodum was equivalent to 174.9 mmol dm−3 of the active ingredient (CI95: 153.0, 199.0). The population parameters were significantly negatively affected by herbicide application, and this negative effect was progressive with the increasing concentration of the herbicide. A difference of two orders of magnitude existed in the predicted population development of M. dirhodum between the high concentration of the herbicide and the control. This is the first study that comprehensively documents such a negative effect on the population of an herbivorous insect.

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“…Used within recommended rates, glyphosate has little or no effects on non-target organisms (Franz et al, 1997). However, excessive use of glyphosate is reported to have adverse effects on metabolic functions of both unicellular organisms (Austin et al, 1991;Zobiole et al, 2011;Shehata et al, 2013;Newman et al, 2016) and wide range of multicellular organisms such as algae (Oliveira et al, 2016), earthworms (Santadino et al, 2014), arthropods (Pérez et al, 2011), honey bees (Balbuena et al, 2015), snails (Druart et al, 2011), fish (Hued et al, 2012), frogs (Pérez -Iglesias et al, 2016, Mann andBidwell, 1999), lizards (Schaumburg et al, 2016), birds (Oliveira et al, 2007), swine (Lee et al, 2009) and humans (Samsel and Seneff, 2013).…”

Section: Introductionmentioning

confidence: 99%

Effect of weed management with glyphosate on growth and early yield of young cocoa (Theobroma cacao L.) in Ghana

Konlan¹,

Quaye²,

Pobee³

et al. 2019

Afr. J. Agric. Res.

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Weeds are a limitation to cocoa production, and herbicide use in cocoa cultivation is known to lower the cost of weed management and support better plant growth. As a result, glyphosate was recommended for use in cocoa cultivation following a two-year field trial at the Cocoa Research Institute of Ghana. Recent informal debates among scientists and farmers, however, point towards a disagreement regarding the effect of glyphosate on young cocoa. Consequently, an experiment was conducted from 2011 to 2013 at the Cocoa Research Institute of Ghana to re-evaluate the suitability of glyphosate (Isopropylamine) for weed management and its effects on growth and yield of young cocoa. Five rates of glyphosate viz: (i) 1,920 g active ingredient a.i. ha-1 using polyjet nozzle; (ii) 1,920 g a.i. ha-1 using very low volume (vlv) nozzle; (iii) 960 g a.i. ha-1 vlv; (iv) 720 g a.i. ha-1 vlv; (v) 480 g a.i. ha-1 vlv; and (vi) manual weeding were tested in a randomized complete block design with four replicates in the field. Effects of treatments on weeds, cocoa growth and yield were recorded for three years. In a gauze house study, cowpea and maize were used to determine residual effects of glyphosate. Emergence, survival and dry matter accumulation by these plants were recorded. Results from the gauze house study showed that glyphosate did not exhibit residual soil activity at these rates. Glyphosate at 960 g ha-1 significantly increased yield of three year old cocoa compared to the other rates and manual weeding. The 1,920 g ha-1 rates significantly reduced the initial yield of 3 year old cocoa compared to the other glyphosate rates. Cost analysis showed that glyphosate at 960 g a.i. ha-1 was Ghȼ 136.00 (11%) and Ghȼ 1,784.00 (61%) cheaper than the 1,920 g a.i. ha-1 rates and manual weeding respectively. It was therefore concluded that glyphosate can be applied at 960 g a.i. ha-1 (equivalent to 2.0 l ha-1 in 120 l of water) for effective weed management without significant adverse effects on growth and yield of young cocoa.

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Glyphosate and glufosinate-based herbicides: fate in soil, transfer to, and effects on land snails

Cited by 32 publications

References 39 publications

Impact of glyphosate and glyphosate‐based herbicides on the freshwater environment

Impact of glyphosate and glyphosate‐based herbicides on the freshwater environment

Treatment by glyphosate-based herbicide alters life history parameters of the rose-grain aphid Metopolophium dirhodum

Effect of weed management with glyphosate on growth and early yield of young cocoa (Theobroma cacao L.) in Ghana

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