Persistence of the nematicide fluensulfone in potato (Solanum tuberosum ssp. tuberosum) beds under field conditions

Norshie, Patrick Mawuenyegan; Back, Matthew A.

doi:10.1163/15685411-00003085

Cited by 7 publications

(5 citation statements)

References 16 publications

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“…Fluensulfone has a soil half-life up to 36 days (Ludlow, 2015b, Table 2). Under field conditions, fluensulfone had a 50% dissipation rate (DT 50 ) between 23.7 and 24.3 days depending on soil type, similar to that of fosthiazate (Norshie et al, 2017). When treated with similar doses of fluensulfone, Caenorhabditis elegans and M. incognita respond with immobility and eventual death (Kearn et al, 2014).…”

Section: Characteristics and Mode-of-action Of New Generation Of Nematicidesmentioning

confidence: 99%

New reduced-risk agricultural nematicides - rationale and review

Desaeger

Wram

Zasada

2020

Journal of Nematology

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The last decade has seen a sharp increase in nematicide research in the agricultural industry. As a result, several new synthetic nematicides have become available to growers, and several more are expected in the near future. This new interest in nematicides is directly related to the growing demand for safer and more selective products, and the increasing regulatory pressure on many of the traditional nematicides. This has led to a ban of several widely used fumigant (e.g. methyl bromide) and non-fumigant (e.g. aldicarb) nematicides. The loss of traditional nematicides, combined with a lack of replacement products and awareness of the damage that nematodes can cause, has not only raised concern among growers, but has also created new opportunities for the crop protection industry. Nematicides have become a priority, and many companies are now allocating significant research dollars to discover new nematicides. The new nematicides are very different from previous products: (i) they are more selective, often only targeting nematodes, and (ii) they are less toxic, and safer to use. This review article describes these new developments by discussing the challenges that are associated with finding new nematicides, reviewing the nature, characteristics, and efficacy of new nematicides, and discussing the impact they could have on future nematode management.

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Section: Characteristics and Mode-of-action Of New Generation Of Nematicidesmentioning

confidence: 99%

New reduced-risk agricultural nematicides - rationale and review

Desaeger

Wram

Zasada

2020

Journal of Nematology

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“…The difference in sorption of the technical-grade and the granular product is attributable to limited availability of fluensulfone in the solution for uptake. Indeed, a granular formulation releases active substances gradually (Kile et al, 1999) and, was evident for Nimitz 15G (Norshie et al, 2017). The lower sorption exhibited here would suggest that studies involving the technicalgrade could over-estimate sorption in potato beds receiving a treatment of this formulation.…”

Section: Discussionmentioning

confidence: 74%

“…These results, however, indicate that fluensulfone may be easily leached. Even though this highlights environmental consequences, our study on persistence in field soil (Norshie et al, 2017) indicated that it may not pose a hazard to the environment.…”

Section: Discussionmentioning

confidence: 78%

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Sorption of the nematicide fluensulfone in six UK arable soils – implications for control of the potato cyst nematode Globodera pallida

Norshie

Back

2018

Nematol

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Batch adsorption experiments were performed to determine the sorption of the nematicide fluensulfone as a technical-grade and a granular formulation (as Nimitz 15G) in six UK arable soils. The Freundlich and equilibrium sorption coefficients and , respectively, were generally low. and correlated positively with soil organic matter in all instances. The sorption kinetics was similar for both forms, but the was about four times lower for Nimitz 15G than the technical-grade, suggesting concentration dependency of fluensulfone sorption. The low sorption of fluensulfone across the soils indicates that partitioning of fluensulfone to the soil liquid phase may be unlimited. Therefore, substantial availability in the soil to be effective is likely. Sorption, therefore, may not limit fluensulfone efficacy. Nonetheless, these results call for cautious use of the nematicide because leaching is possible.

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“…There are different forms of application; however, the most recommended are drip injection or broadcast by mechanical incorporation with a single application 7 days before planting [129]. It has been estimated that its half-life in soil is 36 days, with a dissipation rate (DT 50 ) of between 20 and 50 days, which can vary depending on the type of soil and environmental conditions [134,135].…”

Section: Fluensulfonementioning

confidence: 99%

Plant-Parasitic Nematodes and Their Management: A Focus on New Nematicides

Rey Páez

2023

Nematodes - Ecology, Adaptation and Parasitism

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Plant parasitic nematodes are microscopic organisms that inhabit soil and plant tissues. Among such organisms, those of the genera Meloidogyne, Heterodera, Globodera, and Pratylenchus spp., are the most harmful, as they affect more than 2500 different species of plants, generating worldwide economic losses of over US$100 billion per year. These nematodes constitute a notable threat to the country’s progress and food security. Almost half of the global market for nematicides, which corresponds to US$ 1 billion per year, is used to control these nematodes. Non-fumigant nematicides are the most widely used in their control; however, many of them, such as carbamates and organophosphorus, are banned by environmental protection agencies because of their undesirable effects on non-target organisms. In the last 10 years, a new series of nematicides have emerged with different mechanisms of action than the old non-fumigant nematicides. Tioxazafen and fluazaindolizine are some of the latest new-generation nematicides that have come on the market. The rational design of new nematicides through in silico approaches combined with studies of the genetics and biochemistry of these microorganisms will help to better understand their management and control, aiming to reduce the environmental impact caused by the irrational use of nematicides.

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Persistence of the nematicide fluensulfone in potato (Solanum tuberosum ssp. tuberosum) beds under field conditions

Cited by 7 publications

References 16 publications

New reduced-risk agricultural nematicides - rationale and review

New reduced-risk agricultural nematicides - rationale and review

Sorption of the nematicide fluensulfone in six UK arable soils – implications for control of the potato cyst nematode Globodera pallida

Plant-Parasitic Nematodes and Their Management: A Focus on New Nematicides

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