Suppressive effect of anaerobically digested slurry on the root lesion nematode Pratylenchus penetrans and its potential mechanisms

Min, Yu; Sato, Erika; Shirakashi, Tomoaki; Wada, Shun‐ichi; Toyota, Koki; Watanabe, Akira

doi:10.3725/jjn.37.93

Cited by 29 publications

(20 citation statements)

References 15 publications

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“…The sample was sieved through a 2-mm screen and kept at 10°C prior to use. Physicochemical properties of the soil were reported by Min et al 27) and some of them were as follows: soil texture: loam (clay 6.0%, silt 62.2%, sand 31.8%), maximum water-holding capacity 0.937 g g −1 , pH (H2O) 6.2.…”

Section: Pot Testmentioning

confidence: 99%

Effect of Three Organophosphorous Nematicides on Non-target Nematodes and Soil Microbial Community

Wada

Toyota

2008

Microb. Environ.

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The toxicity of three organophosphorous nematicides, imicyafos, fosthiazate and cadusafos, to non-target organisms in soil was evaluated. Imicyafos and fosthiazate had no significant inhibitory effect on the growth of fungal (Fusarium oxysporum f. sp. lactucae, Rhizoctonia solani and Trichoderma viride) and bacterial (Ralstonia solanacearum and Pseudomonas fluorescens) strains in media at 12.5 to 200 mg L −1 . Cadusafos, however, significantly inhibited the growth of all these strains except R. solanacearum. A pot test was conducted using a soil naturally infested with Pratylenchus penetrans, and treated with imicyafos or fosthiazate, which are less toxic to non-target organisms. The density of P. penetrans decreased to less than 10% of the control level after exposure to imicyafos and fosthiazate at 3 kg active ingredient ha −1 , the conventional dose. No significant effect was observed on the density of free-living nematodes, cellulose decomposition activity, microbial biomass evaluated with the ATP method and number of ammonia oxidizers between the soil treated with imicyafos or fosthiazate and the untreated control soil. Our results revealed that imicyafos and fosthiazate effectively suppressed a plant-parasitic nematode, P. penetrans, but had little impact on free-living nematodes and the soil microbial community.

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Section: Pot Testmentioning

confidence: 99%

Effect of Three Organophosphorous Nematicides on Non-target Nematodes and Soil Microbial Community

Wada

Toyota

2008

Microb. Environ.

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“…Other fermentation products produced are fatty acids like (iso)butyric acid, maleic acid, (iso)valeric acid, acetic acid, lactic acid, citric acid and propionic acid. Ammonia is known to be lethal to root lesion nematode Pratylenchus penetrans (Min et al, 2007). Nematicidal effects of fatty acids have been demonstrated recently by several research groups (Abdel-Rahman et al, 2008;Mahran et al, 2008;Xiao et al, 2008).…”

Section: The Anaerobic Processmentioning

confidence: 98%

Perspectives of Anaerobic Soil Disinfestation

Lamers¹,

Runia²,

Molendijk³

et al. 2010

Acta Hortic.

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Biological soil disinfestation is an environmentally friendly method to disinfest soil. From now on we refer to it as anaerobic soil disinfestation (ASD). With ASD a green manure crop (40 t/ha) is homogeneously incorporated into the topsoil (0-30 cm) after which the field is lightly compacted and irrigated. Subsequently the field is mechanically covered with air tight virtually impermeable film (VIF) to restrict oxygen supply to the topsoil. The soil is left covered for six weeks in the summer. In this period anaerobic conditions develop rapidly in which toxic fermentation products are formed. These conditions are responsible for elimination of fungal and bacterial pathogens as well as parasitic nematodes, insects and weeds. In the Netherlands since 2004 anaerobic soil disinfestation (ASD) was applied on approximately 70 ha mainly for asparagus and strawberry runners production. When the asparagus crop was replanted ASD proved to be profitable for many years by controlling Fusarium oxysporum. Although highly effective against soilborne pathogens and pests ASD is not applied widely in the Netherlands due to the high costs of about € 4000 per ha. Apart from the costs this technique needs special attention to prevent plastic damage. Moreover the mechanism behind ASD is not well defined which makes recommendations for growers complex. A new and promising development in ASD is the application of defined products on a basis of mixtures of carbon hydrates and proteins. The mechanism of ASD will be studied in the next few years with some of these products by measuring gases and fatty acids and microbial shifts in relation to efficacy. Chemical soil disinfestation with fumigants is restricted more and more and a non-chemical approach of soil disinfestation like ASD is urgently needed.

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“…Our previous study [6] demonstrated acute toxicity of NH 3 and acetic acid in ADS for P. penetrans and M. incognita in in vitro experiment, in which their populations were reduced by 50% in one week incubation. Thus, ADS was considered as a valuable liquid fertilizer that might function as a nematicide for managing plant-parasitic nematode diseases as well as a fertilizer [7].…”

Section: Discussionmentioning

confidence: 99%

“…We have previously reported on the ability of different types of ADS to suppress the root-lesion nematode Pratylenchus penetrans and root-knot nematode Meloidogyne incognita in in vitro experiment without the host plants and the possible mechanisms involved [6]. The objective of this study was to evaluate the effectiveness of ADS on the plantparasitic nematodes in larger scales of experiment, such as pot and field with the host plants.…”

Section: Introductionmentioning

confidence: 99%

“…The byproduct, anaerobically digested slurry (ADS) from animal wastes, has been evaluated as a potentially important alternative source to synthetic inputs [1] in sustainable crop production. In addition, protection of plant-parasitic nematodes and phytopathogenic fungi [1][2][3][4][5][6][7] by ADS has been reported, and its ingredients such as ammonium and acetic acid are proposed as possible mechanisms [6]. In addition, it is discussed that plant-parasitic nematodes are controlled by certain kinds of organic amendment through the stimulation of naturally occurring antagonists [8,9] for nematodes pests and/or change of the soil nematode community structure [10].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Anaerobically Digested Slurry onMeloidogyne incognitaandPratylenchus penetransin Tomato and Radish Production

Min

Toyota

Sato

et al. 2011

Applied and Environmental Soil Science

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Since effective disposable way of anaerobically digested biogas slurry is expected, ADS was applied to soil to evaluate its effects on nematode damage. Damage index of tomato by root-knot nematode was significantly (P < .05) lower and the growth better in pots applied with ADS (100 and 200 mg NH These results suggest that application of ADS to fields might be feasible for mitigating nematode damage, but the rate and timing should be considered further for the best application way.

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Suppressive effect of anaerobically digested slurry on the root lesion nematode Pratylenchus penetrans and its potential mechanisms

Cited by 29 publications

References 15 publications

Effect of Three Organophosphorous Nematicides on Non-target Nematodes and Soil Microbial Community

Effect of Three Organophosphorous Nematicides on Non-target Nematodes and Soil Microbial Community

Perspectives of Anaerobic Soil Disinfestation

Effects of Anaerobically Digested Slurry onMeloidogyne incognitaandPratylenchus penetransin Tomato and Radish Production

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