Accelerated degradation of carbofuran in previously treated field soils in the United Kingdom

Suett, D. L.

doi:10.1016/0261-2194(86)90026-8

Cited by 39 publications

(18 citation statements)

References 11 publications

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“…The involvement of microorganisms in the degradation of fenamiphos was proven in a study conducted by Stirling et al (1992). Another study showing the involvement of microorganisms in the degradation of nematicides was conducted by Suett (1986), who examined the degradation of carbofuran in soil. The microbial populations were found to be the lowest in soil that had been treated regularly with a soil sterilant, and it was significant that the persistence of carbofuran was greater in such soil, despite many previous applications of carbofuran, compared to the higher degradation rates in any of the untreated soils.…”

Section: Biological Factorsmentioning

confidence: 99%

“…The prevalence of crop rotation systems in the United Kingdom may explain why few pest control problems have been associated with the enhanced biodegradation of pesticides in the country (Suett, 1986). Technological strategies require alterations in the formulation chemistry or the structural chemistry of the nematicide concerned.…”

Section: Soil Depthmentioning

confidence: 99%

“…Decreasing the degradation capacity to a point where the soil can again be treated safely with the same pesticide depends on the structure of the chemical used, as well as on sufficient application of it, the frequency of the treatment, climatic variables, and the ability of microorganisms to use parts, or all, of the chemical as nutrient and/or energy sources (Suett, 1986;Anderson et al, 1998). The best prescription for avoiding problems of accelerated degradation is to apply appropriate compatible pesticides and to use pesticides only when doing so becomes necessary (Suett, 1986;Harrison, Accelerated Microbial Degradation of Nematicides 1990; Anderson et al, 1998). The sterilisation of machinery after use on a treated field would also minimise the danger of spreading the degrading microorganisms from one field to another (Read, 1986).…”

Section: Soil Depthmentioning

confidence: 99%

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Accelerated Microbial Degradation of Nematicides in Vineyard and Orchard Soils

Hugo

Mouton²,

Malan

2016

SAJEV

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Accelerated microbial degradation (AMD) of organophosphate and carbamate nematicides is a phenomenon whereby biodegradation in the soil is increased, leading to a dramatically shortened persistence of nematicides. More intensified agriculture practices in South Africa in response to the future demand for food may lead to increased pest and disease pressure, which in turn will lead to more frequent pesticide application. The same principle applies to plant-parasitic nematode control practices, and the overuse and misuse will have a pronounced effect on the enhancement of AMD. With limited management options available, the responsible use of nematicides becomes more pertinent. Producers should be aware of the problems associated with multiple soil applications of organophosphates and carbamates against plant-parasitic nematodes. This article reviews factors contributing to the AMD of carbamate and organophosphate nematicides in soil and makes practical recommendations to avoid the occurrence of AMD in vineyard and orchards.

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Section: Biological Factorsmentioning

confidence: 99%

Section: Soil Depthmentioning

confidence: 99%

Section: Soil Depthmentioning

confidence: 99%

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Accelerated Microbial Degradation of Nematicides in Vineyard and Orchard Soils

Hugo

Mouton²,

Malan

2016

SAJEV

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“…Much of the research on this phenomenon, which is known as accelerated or enhanced biodegradation, has been concerned with carbofuran (2,3-dihydro-2,2-dimethylbenzofuran-7-ylmethylcarbamate) (Hendry and Richardson, 1988;Read, 1983;Suett, 1986). Microorganisms have been isolated from soil that degrade this insecticide (Chaudhry and Ali, 1988;Ramanand et al, 1988;Venkateswarlu and Sethunathan, 1984), and it has been suggested that an increase in the number of microorganisms degrading pesticides is responsible for the enhanced degradation in soil (Fournier et al, 1981;Hendry and Richardson, 1988), but enhanced degradation may result from an increase in the activity rather than the abundance of pesticide-degrading microorganisms (Moorman, 1988;Racke and Coats, 1988).…”

Section: Introductionmentioning

confidence: 99%

Populations and activity of carbofuran-degrading microorganisms in soil

Merica

Alexander

1990

Plant Soil

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Kendaia clay loam contained more than 105 microbial cells per g able to convert 14C-carbonyl-labelled carbofuran (2,3-dihydro-2,2-dimethylbenzofuran-7-yl methylcarbamate) to ~4CO2 but never more than 130 cells per g transforming 14C-ring-labelled carbofuran to CO 2. The sizes of the population rarely increased as a result of addition of the insecticide to soil. Mineralization of these compounds proceeded with little or no acclimation phase, and subsequent additions were usually metabolized more readily, except at 10 mg of carbofuran per kg or if subsequent additions of the pesticide were made long after the first. More than 60% of the UC in the carbonyl but less of the ~4C in the ring was microbiologically converted to ~4CO 2 in this soil. Streptomycin and cycloheximide each inhibited conversion of the carbonyi or ring carbon to CO 2. Urea but not NH4NO 3 markedly inhibited the conversion of the carbonylqabelled insecticide to ~4CO2. The addition of glucose and succinate together with the insecticide did not enhance mineralization of ring-or carbonyl-labelled carbofuran. The data suggest that soils containing a large population of microorganisms able to convert the carbonyl carbon to CO~ will not show a marked effect of prior treatment with the insecticide and that few organisms individually are able to mineralize the ring.

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“…Concurrently to this particular study, a large amount of literature mention a "lack of efficiency" of nematode infection control by nematicide in field conditions after (Rajagopal et al 1986;Suett, 1986;Pussemier, 1990;Singh et ai, 1990;Davis et al, 1994). Genes involved in carbamates degradation are encoded on plasmid and were cloned from several bacterial strains (Sphhigomonas sp., Rhizobium sp., and Achromobacter sp.)…”

Section: Sheepmentioning

confidence: 99%

Nematode parasites of animals are more prone to develop xenobiotic resistance than nematode parasites of plants

Silvestre¹,

Cabaret²

2004

Parasite

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Summary:In this paper, we concentrate on a comparison of plant and animal-parasitic nematodes, to gain insight into the factors that influence the acquisition of the drug resistance by nematodes. Comparing nematode parasite of domestic animals and cultivated plants, it appears that drug resistance threatens only domestic animal production. Does the paucity of report on nematicide field resistance reflect reality or, is nematicide resistance bypassed by other management practices, specific to cultivated plants (i.e. agricultural control) ? First, it seems that selection pressure by treatments in plants is not as efficient as selection pressure in ruminants. Agronomic practices (i.e. sanitation, early planting, usage of nematodes resistant cultivar and crop rotation) are frequently used to control parasitic-plant nematodes. Although the efficiency of such measures is generally moderate to high, integrated approaches are developing successfully in parasiticplant nematode models. Secondly, the majority of anthelmintic resistance cases recorded in animal-parasitic nematodes concern drug families that are not used in plant-parasitic nematodes control (i.e. benzimidazoles, avermectines and levamisole). Thirdly, particular life traits of parasitic-plant nematodes (low to moderate fecundity and reproductive strategy) are expected to reduce probability of appearance and transmission of drug resistance genes. It has been demonstrated that, for a large number of nematodes such as Meloidogyne spp., the mode of reproduction by mitotic parthenogenesis reduced genetic diversity of populations which may prevent a rapid drug resistance development. In conclusion, anthelmintic resistance develops in nematode parasite of animals as a consequence of an efficient selection pressure. Early detection of anthelmintic resistance is then crucial: it is not possible to avoid it, but only to delay its development in farm animal industry.

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Accelerated degradation of carbofuran in previously treated field soils in the United Kingdom

Cited by 39 publications

References 11 publications

Accelerated Microbial Degradation of Nematicides in Vineyard and Orchard Soils

Accelerated Microbial Degradation of Nematicides in Vineyard and Orchard Soils

Populations and activity of carbofuran-degrading microorganisms in soil

Nematode parasites of animals are more prone to develop xenobiotic resistance than nematode parasites of plants

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