Methylcarbamates effect acylanilide herbicide residues in soil

Kaufman, Donald D.; Blake, J. P.; Miller, Duane E.

doi:10.1021/jf60173a032

Cited by 29 publications

(14 citation statements)

References 9 publications

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“…The increased persistence of chlorpropham and propanil in the presence of carbamates and insecticides, and the reduced breakdown of dalapon in the presence of amitrole, has been ascribed to inhibition of the herbicide degrading organisms by the biologically more toxic additives (Kaufman, 1966;Kaufman et al, 1970;Kaufman et al, 1971;Kaufman, 1977). Since the half-hves of ['"C] 2,4-D were very close, regardless of whether being applied to untreated soils or soils pre-treated with the pesticidal substances listed (Tables 1 and 2), it was concluded that, at a soil concentration of 2 g/g, none of the combinations had an adverse effect on soil microorganisms responsible for the degradation of 2,4-D.…”

Section: Resultsmentioning

confidence: 99%

“…The eflects of a second pesticide on the breakdown of herbicides in soil has been studied only to a limited extent. It has been established that the persistence of chlorpropham [isopropyl N-{'ichlorophenyl) carbamate] and propanil [A^-(3,4dichlorophenyl)propionamide] was increased in soils treated with carbamates and insecticides (Dawson, 1969;Kaufman, Kearney, von Endt & Miller 1970;Kaufman, Blake & Miller, 1971;Kaufman, 1977). Similarly Kaufman (1966) has demonstrated that the biological breakdown of dalapon (2,2-dichloropropionic acid) was inhibited by amitrole (3-amino-l,2,4-triazole).…”

Section: Introductionmentioning

confidence: 99%

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Persistence studies with [¹⁴C] 2,4‐D in soils previously treated with herbicides and pesticides

Smith

1980

Weed Research

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Summary: The persistence of [14C] 2,4‐D at a rate equivalent to 1 kg/ha was compared under laboratory conditions in samples of heavy clay, sandy loam, and clay loam at 85% of field capacity moisture and 20 ± 1°C which had either received no pre‐treatment, or had been pre‐treated for 7 days at the 2 μg/g level with the herbicides benzoylprop‐ethyl, diclofop‐methyl, dinitramine, flamprop‐methyl, nitrofen, picloram, tri‐allate, trifluralin, and a combination of tri‐allate and trifluralin. The breakdown of [14C] 2,4‐D was also studied in the same soils that had similarly received pre‐treatments of 2 μg/g of the cereal seed dressing Vitaflo‐DB, the insecticide, malathion, and a combination of Vitaflo‐DB and malathion. In each soil type, the half‐life of the 2,4‐D was similar regardless of whether the soil had, or had not, received any pre‐treatment, indicating that none of the chemicals investigated adversely affected the soil degradation of 2,4‐D.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Persistence studies with [¹⁴C] 2,4‐D in soils previously treated with herbicides and pesticides

Smith

1980

Weed Research

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“…Thus, it has been established that under greenhouse conditions the persistence of chlorpropham (isopropyl N-(3-chlorophenyl)carbamate) was increased in soils treated with /7-chlorophenyl-N-methylcarbamate (Dawson, 1969); methylcarbamate insecticides (Kaufman et al, 1970;Kaufman, 1977); or the insecticide diazinon (Kaufman, 1977). Laboratory studies by Kaufman, Blake & Miller (1971) have similarly shown that applications of /j-chlorophenyl-Nmethylcarbamate retarded the degradation of propanil [N-(3,4-dichlorophenyl)propionamide] in soil and greatly reduced formation of the tetrachloroazobenzene breakdown product.…”

Section: Introductionmentioning

confidence: 99%

Soil persistence experiments with [¹⁴C]2,4‐D in herbicidal mixtures, and field persistence studies with tri‐allate and trifluralin both singly and combined

Smith

1979

Weed Research

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Summary: The persistence of [14C]2,4‐D at a rate equivalent to 1 kg/ha was studied in the laboratory on a heavy clay and a sandy loam at 85%of field capacity and 20°C both alone and in the presence of 1 kg/ha dicamba, dichlorprop, difenzoquat, TCA, and 2,4,5‐T. The persistence of 2,4,5‐T was also monitored in both soils under the same conditions in the presence and absence of [14C]2,4‐D. All soils were extracted at weekly intervals using aqueous acidic acetonitrile and analysed for [14C]2,4‐D remainining radiochemical techniques. The extracts containing 2,4.5‐T were additionally analysed gas chromatographically for that herbicide. In each soil type the half‐life of the 2,4‐D was similar regardless of whether applied singly or in combination with the five herbicides tested. Similarly, [14C]2,4‐D did not affect the breakdown of 2,4,5‐T in either soil type. The persistence of tri‐allate (1·5 kg/ha) and trifluralin (0·75 kg/ha) both singly and in combination were compared using small field plots at two locations in Saskatchewan. Applications were made during May of 1977 and 1978 and the plots were sampled and analysed for herbicide(s) remaining after 10 and 20 weeks, respectively. The results indicate that within experimental error the loss of both tri‐allate and trifluralin from the plots treated with the mixture was the same as from plots treated with the individual compounds.

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“…Irrespective of their main purpose of use and their mode of action, SPs are translocated through plant and affect many physiological processes (including but not limited to their main target sites). Such collateral effects are well known in fungicides (Zhang et al, 2010; Kumar et al, 2016) insecticides (Kaufman et al, 1971; Dhungana et al, 2016) and herbicides (Fletcher et al, 1996; Cedergreen, 2008). Seed microbiome and seed-associated endophytes that might have co-evolved for millions of years have recently been associated with the establishment of plant microbiome (Johnston-Monje et al, 2016; Khalf and Raizada, 2016; Pitzschke, 2016).…”

Section: Systematicity Of Soil Applied Pesticides: Uptake and Translomentioning

confidence: 99%

The Plant as Metaorganism and Research on Next-Generation Systemic Pesticides – Prospects and Challenges

Vryzas

2016

Front. Microbiol.

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Systemic pesticides (SPs) are usually recommended for soil treatments and as seed coating agents and are taken up from the soil by involving various plant-mediated processes, physiological, and morphological attributes of the root systems. Microscopic insights and next-generation sequencing combined with bioinformatics allow us now to identify new functions and interactions of plant-associated bacteria and perceive plants as meta-organisms. Host symbiotic, rhizo-epiphytic, endophytic microorganisms and their functions on plants have not been studied yet in accordance with uptake, tanslocation and action of pesticides. Root tips exudates mediated by rhizobacteria could modify the uptake of specific pesticides while bacterial ligands and enzymes can affect metabolism and fate of pesticide within plant. Over expression of specific proteins in cell membrane can also modify pesticide influx in roots. Moreover, proteins and other membrane compartments are usually involved in pesticide modes of action and resistance development. In this article it is discussed what is known of the physiological attributes including apoplastic, symplastic, and trans-membrane transport of SPs in accordance with the intercommunication dictated by plant–microbe, cell to cell and intracellular signaling. Prospects and challenges for uptake, translocation, storage, exudation, metabolism, and action of SPs are given through the prism of new insights of plant microbiome. Interactions of soil applied pesticides with physiological processes, plant root exudates and plant microbiome are summarized to scrutinize challenges for the next-generation pesticides.

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Methylcarbamates effect acylanilide herbicide residues in soil

Cited by 29 publications

References 9 publications

Persistence studies with [¹⁴C] 2,4‐D in soils previously treated with herbicides and pesticides

Persistence studies with [¹⁴C] 2,4‐D in soils previously treated with herbicides and pesticides

Soil persistence experiments with [¹⁴C]2,4‐D in herbicidal mixtures, and field persistence studies with tri‐allate and trifluralin both singly and combined

The Plant as Metaorganism and Research on Next-Generation Systemic Pesticides – Prospects and Challenges

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Methylcarbamates effect acylanilide herbicide residues in soil

Cited by 29 publications

References 9 publications

Persistence studies with [14C] 2,4‐D in soils previously treated with herbicides and pesticides

Persistence studies with [14C] 2,4‐D in soils previously treated with herbicides and pesticides

Soil persistence experiments with [14C]2,4‐D in herbicidal mixtures, and field persistence studies with tri‐allate and trifluralin both singly and combined

The Plant as Metaorganism and Research on Next-Generation Systemic Pesticides – Prospects and Challenges

Contact Info

Product

Resources

About

Persistence studies with [¹⁴C] 2,4‐D in soils previously treated with herbicides and pesticides

Persistence studies with [¹⁴C] 2,4‐D in soils previously treated with herbicides and pesticides

Soil persistence experiments with [¹⁴C]2,4‐D in herbicidal mixtures, and field persistence studies with tri‐allate and trifluralin both singly and combined