Resiliency of a nematode community and suppressive service to tillage and nematicide application

Timper, Patricia; Davis, Richard F.; Jagdale, Ganpati B.; Herbert, John J.

doi:10.1016/j.apsoil.2012.04.001

Cited by 33 publications

(31 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The rate of recovery of predatory and omnivore nematodes may depend on site-dependent field characteristics (Sánchez-Moreno et al, 2010;Timper et al, 2012). In this study, strong effects on the Structure Index were seen at Merced but not Stanislaus.…”

Section: Discussionmentioning

confidence: 56%

“…Since soil fungal populations are more vulnerable to fumigation than bacterial communities (Stromberger et al, 2005), these shifts may have resulted from changes in the nematodes food resources. Higher trophic level nematodes, which also have high Cp values, are often negatively influenced by fumigation, but may be able to recover after a year or more (Sánchez-Moreno et al, 2010;Timper et al, 2012). Other studies found that the effects of soil fumigation on soil organisms, including non-target nematodes, varied with soil texture (Collins et al, 2006) and that the application of organic amendments can alleviate the effects of soil fumigation on soil microbial communities (Dungan et al, 2003).…”

mentioning

confidence: 99%

See 1 more Smart Citation

The effect of fumigation on nematode communities in California almond orchards

et al. 2019

View full text Add to dashboard Cite

SummaryFumigants, such as 1,3-dichloropropene and chloropicrin, have become key to pre-plant pest management in almond production. Whilst the use of these fumigants has become increasingly restricted due to human health concerns, less is known about their below-ground non-target effects in orchards and how nematode communities recover from fumigation over time. In this study, replicated trials compared 1,3-dichloropropene + chloropicrin to non-treated controls in two almond orchards in California, USA. Nematode communities, nematode indices and nematode metabolic footprints were quantified soon after fumigation and for 2 years afterwards. Fumigation reduced the Herbivore Metabolic Footprint in year 1, and populations of Pratylenchus vulnus in year 3. Fumigation also reduced populations of larger omnivores and predators, resulting in lower levels of the Structure Index at one site. Populations of fungal-feeding nematodes were more adversely affected by fumigation than bacterial-feeding nematode populations. At both sites, fumigation still influenced nematode community composition 2 years after treatment application.

show abstract

Section: Discussionmentioning

confidence: 56%

mentioning

confidence: 99%

The effect of fumigation on nematode communities in California almond orchards

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Organisms in these communities provide services such as nutrient cycling (Ferris et al, 1998;Chen and Ferris, 1999), residue decomposition (Chauvin et al, 2015;Holajjer et al, 2016), pest or pathogen suppression (Noel et al, 2010;Timper et al, 2012), and improved soil aggregation (Oades, 1993). The soil nematode community provides these services (Ferris et al, 1998;Holajjer et al, 2016) and is a dynamic bioindicator of soil ecology (Villenave et al, 2010;Grabau and Chen, 2016) since nematodes occupy a wide range of ecological niches (Bongers and Korthals, 1993;Ferris et al, 2001).…”

mentioning

confidence: 99%

Effects of Cover Crops on Pratylenchus penetrans and the Nematode Community in Carrot Production

Grabau

Maung

Noyes

et al. 2017

Journal of Nematology

View full text Add to dashboard Cite

Cover cropping is a common practice in U.S. Midwest carrot production for soil conservation, and may affect soil ecology and plant-parasitic nematodes-to which carrots are very susceptible. This study assessed the impact of cover crops-oats (Avena sativa), radish (Raphanus sativus) cv. Defender, rape (Brassica napus) cv. Dwarf Essex, and a mixture of oats and radish-on plantparasitic nematodes and soil ecology based on the nematode community in Michigan carrot production systems. Research was conducted at two field sites where cover crops were grown in Fall 2014 preceding Summer 2015 carrot production. At Site 1, rootlesion (Pratylenchus penetrans) and stunt (Tylenchorhynchus sp.) nematodes were present at low population densities (less than 25 nematodes/100 cm 3 soil), but were not significantly affected (P . 0.05) by cover crops. At Site 2, P. penetrans population densities were increased (P # 0.05) by 'Defender' radish compared to other cover crops or fallow control during cover crop growth and midseason carrot production. At both sites, there were few short-term impacts of cover cropping on soil ecology based on the nematode community. At Site 1, only at carrot harvest, radish-oats mixture and 'Dwarf Essex' rape alone enriched the soil food web based on the enrichment index (P # 0.05) while rape and radish increased structure index values. At Site 2, bacterivore abundance was increased by oats or radish cover crops compared to control, but only during carrot production. In general, cover crops did not affect the nematode community until nearly a year after cover crop growth suggesting that changes in the soil community following cover cropping may be gradual.

show abstract

“…Excavation disturbed the soil environment and resulted in lowering the total nematode numbers in Yr 0 that ranged from 11 to 52 with an average of 29 individuals per 100 g dry soil. The reduction was lower than detected in soil treated with systemic nematicides (> 100 individuals per 100 g dry soil) (Timpera et al, 2012) or with a soil fumigant (> 60 individuals per 100 g dry soil) (Sánchez-Moreno et al, 2010). The mean number of nematodes in the reclamation sites was 204 individuals per 100 g dry soil, which was lower than that observed in long-term reclamation of coal-mining dumps soil near Cottbus (> 500 individuals per 100 g dry soil) (Hánĕl, 2002 .…”

Section: Discussionmentioning

confidence: 99%

Response of nematode communities to reclamation of agricultural soils following degradation through brown coal strip-mining processes

Chen

Mekete

Dababat³

et al. 2014

Helminthologia

View full text Add to dashboard Cite

53 SummaryThe study assessed the impact on the soil nematodes during the first 3-years after reclamation of a brown coal mining area. Samples were taken from 5 fields: 1 year before excavation, right at the beginning of reclamation (Yr 0), and in fields 1, 2 and 3 years after reclamation. A total of 31 families of nematodes were recorded and the nematode community of field Yr 0 was significantly different from that of other four sampling sites. Nematode abundance decreased after excavation and then began to return to initial community levels at each of the three reclamation sites with bacterivore nematodes recovering faster than the fungivores, omnivore-predators or the plant parasites. A gradual but consistent regeneration of the nematode community to its original structure was seen from the beginning of sampling and this recovery process was detectable over the three successive years of experimentation. Open-pit mining, therefore, drastically disturbed nematode community structure initially but the community was able to recover and stabilized quickly after reclamation.

show abstract

Resiliency of a nematode community and suppressive service to tillage and nematicide application

Cited by 33 publications

References 37 publications

The effect of fumigation on nematode communities in California almond orchards

The effect of fumigation on nematode communities in California almond orchards

Effects of Cover Crops on Pratylenchus penetrans and the Nematode Community in Carrot Production

Response of nematode communities to reclamation of agricultural soils following degradation through brown coal strip-mining processes

Contact Info

Product

Resources

About