Soil organic matter ageing and its effect on insecticide imidacloprid soil biodegradation in sugar beet crop

Rouchaud, Jean; Gustin, F.; Wauters, A.

doi:10.1080/02772249409358078

Cited by 10 publications

(5 citation statements)

References 2 publications

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“…Mammalian adverse effects of this insecticide were reported including reproductive (Rouchaud et al, 1994), teratogenic (Pike et al, 1993), mutagenic (Placke and Weber, 1993), carcinogenic (Scholz and Spiteller, 1992) effects. Several side effects were reported after feeding rats with imidacloprid mixed with the diet for three months at doses of 14, 61 and 300 mg kgG 1 (Eiben and Rinke, 1989).…”

Section: Introductionmentioning

confidence: 99%

Mammalian Detrimental Effects of Imidacloprid Residues in Tomato Fruits

Nassar¹,

Abbassy²,

Salem³

2015

Research J. of Environmental Toxicology

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Imidacloprid, a neonicotinoid pesticide, was used extensively to control whitefly (Bemisia tabaci) on tomato crop worldwide. Current study aimed to determine residue amounts of imidacloprid in tomato fruits after different time intervals of application and to evaluate their detrimental effects on white albino rats. Results revealed that the initial deposit (residue amount after 1 h of last spray application) was 0.316 mg kgG . Current study highlighted that there was no residual toxicity of imidacloprid after 14 days of last application.

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Section: Introductionmentioning

confidence: 99%

Mammalian Detrimental Effects of Imidacloprid Residues in Tomato Fruits

Nassar¹,

Abbassy²,

Salem³

2015

Research J. of Environmental Toxicology

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“…This suggested imidacloprid leached through the soil with watering. Imidacloprid has the potential to leach in runoff water, but field studies by Rouchard et al (1994) and Miles Inc. (1993) showed the compound did not reach ground water. In contrast, studies in 1997 and 1998 by Bayer Corporation determined imidacloprid was capable of leaching into groundwater 5.5 meters below the surface.…”

Section: Discussionmentioning

confidence: 96%

“…Because soil conditions adjacent to structures where termiticide is applied accelerated dissipation and biological transport (by plants), both might factor in persistence of imidacloprid-treated soils (Scholz and Spiteller 1992, Rouchard et al 1994, Sarkar et al 2001, Richman et al 2006. Adsorption is directly influenced by soil organic matter acting as a sink whereby gradual availability of a termiticide is diminished by time.…”

Section: Discussionmentioning

confidence: 98%

Recovery of Imidacloprid from Leachate and Soil

Keefer¹,

Gold²

2014

Southwestern Entomologist

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“…This paper addresses the problem of maintaining the moisture content of samples throughout the course of a soil photolysis (15)] to moderate [imidacloprid (16), carbofuran (15), diazinon (17)] to low [chlorpyrifos (18), pyridaben (19), esfenvalerate (20)] and soil mobilities ranging from mobile [carbofuran (15,21,22), propoxur (21)(22)(23)] to slight [diazinon (24)] to low or immobile [imidacloprid (25)(26)(27)(28), chlorpyrifos (22,29), pyridaben (30), esfenvalerate (31,32)]. The experiments used an innovative apparatus (33) designed to maintain the moisture and temperature of the soil samples during exposure.…”

Section: Introductionmentioning

confidence: 99%

“…Diazinon and propoxur [2-(1-methylethoxy)phenyl methylcarbamate, Bayer AG] were applied to sandy loam soil from Madia, CA. The selected insecticides exhibit water solubilities ranging from very high [propoxur ()] to moderate [imidacloprid (), carbofuran (), diazinon ()] to low [chlorpyrifos (), pyridaben (), esfenvalerate ()] and soil mobilities ranging from mobile [carbofuran ( 15 , 21 , 22 ), propoxur ( − )] to slight [diazinon ()] to low or immobile [imidacloprid ( − ), chlorpyrifos ( , ), pyridaben (), esfenvalerate ( , )]. The experiments used an innovative apparatus () designed to maintain the moisture and temperature of the soil samples during exposure.…”

Section: Introductionmentioning

confidence: 99%

Soil Photolysis in a Moisture- and Temperature-Controlled Environment. 2. Insecticides

Graebing¹,

Chib²

2004

J. Agric. Food Chem.

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The photolytic degradations of imidacloprid, carbofuran, diazinon, chlorpyrifos, pyridaben, propoxur, and esfenvalerate were independently compared in both moist (75% field moisture capacity at 0.33 bar) and air-dry microbially viable soils at 5 microg/g. All compounds were applied to sandy soil except for propoxur, which was applied to sandy loam soil. Diazinon was applied to both sandy soil and sandy loam soil. The samples were exposed for up to 360 h, depending on the half-life of the compound. Moisture and temperature were maintained through the use of a specially designed soil photolysis apparatus. Corresponding dark control studies were performed concurrently. With the exception of esfenvalerate, the other compounds exhibited significantly shorter half-lives in moist soils, attributed to the increased hydrolysis and microbial activity of the moist soil. The esfenvalerate metabolism was not first order due to limited mobility in the soil because of its very low water solubility. The overall half-life for esfenvalerate was 740 h, as the percent remaining did not drop below 60%. The imidacloprid half-life in irradiated moist soil was 1.8 times shorter than in air-dry soils. However, on dry soil the photodegradation showed poor first-order kinetics after 24 h of exposure. The metabolism of carbofuran and diazinon was highly dependent on soil moisture. Carbofuran exhibited 2.2 times longer half-lives when less moisture was available in the soil. Diazinon in moist sandy soil degraded rapidly, but slowed significantly in irradiated and dark control air-dry sandy soil. Diazinon photolysis on sandy loam soil was not first order, as it attained a constant concentration of 54.9%, attributed to decreased mobility in this soil. Chlorpyrifos photolysis was 30% shorter on moist sand than on air-dry sand. Pyridaben photolyzed rapidly throughout the first 72 h of irradiation but maintained 48% through 168 h. Propoxur metabolism in moist sandy loam soil was not first order and did not degrade below 50% after 360 h of exposure, but the overall half-life was still nearly half of that on irradiated air-dry soil. Three of the compounds showed differences in metabolism patterns during exposure on moist or air-dry soil. Typically, the moist soils produced a more linear decline than that seen in the dry soils, corresponding to the susceptibility of the particular chemical to hydrolysis and/or biodegradation. Four of the eight experiments had shorter half-lives in dark control moist soils than in irradiated dry soils.

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Soil organic matter ageing and its effect on insecticide imidacloprid soil biodegradation in sugar beet crop

Cited by 10 publications

References 2 publications

Mammalian Detrimental Effects of Imidacloprid Residues in Tomato Fruits

Mammalian Detrimental Effects of Imidacloprid Residues in Tomato Fruits

Recovery of Imidacloprid from Leachate and Soil

Soil Photolysis in a Moisture- and Temperature-Controlled Environment. 2. Insecticides

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