Non-target impact of chlorpyrifos on soil arthropods associated with no-tillage cornfields in Brazil

Michereff-Filho, Miguel; Guedes, Raul Narciso C.; Della-Lucia, T. M. C.; Michereff, Mirian Fernandes Furtado; Cruz, Ivan

doi:10.1080/09670870410001655885

Cited by 24 publications

(20 citation statements)

References 26 publications

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“…The mechanisms controlling these distributions are variable and may include oviposition effects, responses to patterns in soil moisture, resource availability, texture, and chemistry, and responses to patterns in plant growth (Ettema and Wardle 2002). In this study, the insecticide we used likely reduced populations of all soil organisms, as chlorpyrifos applications generally result in reduced densities of earthworms (USDA 2001), Collembola (Frampton 1999, Pereira et al 2005, mites (Cabrera et al 2004, Pereira et al 2005; but see Michereff-Filho et al [2004] for contrasting results), and soil arthropods in general (Wang et al 2001, Dawson et al 2003, Pereira et al 2005; but see Clements et al [1988] for contrasting results for Carabidae). The effect of increasing microsite fertility on soil fauna is more difficult to predict.…”

Section: Implications For Carbon Cycling Belowgroundmentioning

confidence: 99%

Patterns in Soil Fertility and Root Herbivory Interact to Influence Fine-Root Dynamics

Stevens

Jones

2006

Ecology

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Abstract. Fine-scale soil nutrient enrichment typically stimulates root growth, but it may also increase root herbivory, resulting in trade-offs for plant species and potentially influencing carbon cycling patterns. We used root ingrowth cores to investigate the effects of microsite fertility and root herbivory on root biomass in an aggrading upland forest in the coastal plain of South Carolina, USA. Treatments were randomly assigned to cores from a factorial combination of fertilizer and insecticide. Soil, soil fauna, and roots were removed from the cores at the end of the experiment (8-9 mo), and roots were separated at harvest into three diameter classes. Each diameter class responded differently to fertilizer and insecticide treatments. The finest roots (Ͻ1.0 mm diameter), which comprised well over half of all root biomass, were the only ones to respond significantly to both treatments, increasing when fertilizer and when insecticide were added (each P Ͻ 0.0001), with maximum biomass found where the treatments were combined (interaction term significant, P Ͻ 0.001). These results suggest that root-feeding insects have a strong influence on root standing crop with stronger herbivore impacts on finer roots and within more fertile microsites. Thus, increased vulnerability to root herbivory is a potentially significant cost of root foraging in nutrient-rich patches.

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Section: Implications For Carbon Cycling Belowgroundmentioning

confidence: 99%

Patterns in Soil Fertility and Root Herbivory Interact to Influence Fine-Root Dynamics

Stevens

Jones

2006

Ecology

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“…Ant species have also been used to assess agroecosystem conditions. To the response of chlorpyrifos, the activity of the ant Solenopsis saevissima was lower 2 wk after spraying but recovered afterwards (Michereff et al, 2004). In a long-term analysis of non-target effects of microbial pesticide applications in forests, the ant species richness, diversity, abundance, and species composition did not change as a result of the treatments (Wang et al, 2000).…”

Section: Discussionmentioning

confidence: 88%

Effects of aerial insecticide sprays on ant communities to control pine wilt disease in Korean pine forests

Kwon

Song

Shin

et al. 2005

Appl. Entomol. Zool.

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Pine wilt disease is one of the most serious diseases in the pine forests of Korea. Since the first report of the disease in Busan, Korea, in 1988, the disease has been gradually spreading into neighboring regions and now occurs in many regions of the southern part of the Korean Peninsula. The control of the disease is focused on the killing of the sawyer, Monochamus alternatus, an insect vector, by aerial insecticide spraying for adult control and by fumigation or burning infected trees for larval control. This study was conducted to evaluate the effects of aerial insecticide application on pine forest fauna by comparing ant communities in insecticide-sprayed and unsprayed areas. Samples were collected from five regions using three different sampling methods (pitfall trap, sweeping net, and shaking net). The results showed that community indices such as abundance, species richness and species diversity were not significantly different between insecticide-sprayed sites and unsprayed sites. According to a cluster analysis and a correspondence analysis, ant communities were generally grouped based on the location of the sampling sites with a slight variation of insecticide application, but not grouped by insecticide application, showing that ant community structures were not significantly different between the insecticide-sprayed sites and the unsprayed sites. Our results, overall, support the theory that the impact of the aerial insecticide application on pine forest fauna may be less severe than expected.

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“…There is also a growing concern of widespread contamination of the environment leading to potential risks to non-target organism because of its entry in the food chain (Aysal et al, 2004; Chandra et al, 2010; Muhammad et al, 2010) and undesirable health issues to humans that include developmental toxicity, liver damage, reproductive defects, endocrine disruptions, nervous system disorders, and immune system abnormalities (Furlong et al, 2006; Rauh et al, 2011; Terry, 2012; Alavanja et al, 2013). The acute toxicity of CP has also been reported in some animals including aquatic invertebrates and fishes, arthropods, and soil microorganisms (Michereff-Filho et al, 2004; Palma et al, 2008; Tuzmen et al, 2008; Dutta et al, 2010). …”

Section: Introductionmentioning

confidence: 95%

Isolation and Molecular Characterization of Novel Chlorpyrifos and 3,5,6-trichloro-2-pyridinol-degrading Bacteria from Sugarcane Farm Soils

et al. 2017

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Chlorpyrifos (CP) is one of the most widely used organophosphate pesticides in agriculture worldwide, but its extensive use has led to the contamination of various soil and water systems. Microbial bioremediation is considered to be one of the most viable options for the removal of CP from the environment; however, little is known about the soil bacterial diversity that degrade CP. Sequential soil and liquid culture enrichments enabled the isolation of bacterial CP degraders with sequence homologies to Xanthomonas sp., Pseudomonas sp., and Rhizobium sp. The efficacy of the three isolated strains: Xanthomonas sp. 4R3-M1, Pseudomonas sp. 4H1-M3, and Rhizobium sp. 4H1-M1 was further investigated for biodegradation of CP and its primary metabolic product, 3,5,6-trichloro-2-pyridinol (TCP). The results indicate that all three bacterial strains almost completely metabolized CP (10 mg/L) and TCP, occurring as a metabolic degradation product, in mineral salt media as a sole source of carbon and nitrogen. The isolated bacterial strains Xanthomonas sp. 4R3-M1 and Pseudomonas sp. 4H1-M3 could also degrade TCP (10 mg/L) as a sole carbon and nitrogen source, when provided externally. Thus, these bacterial strains may be effective in practical application of bioremediation of both CP and TCP.

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Non-target impact of chlorpyrifos on soil arthropods associated with no-tillage cornfields in Brazil

Cited by 24 publications

References 26 publications

Patterns in Soil Fertility and Root Herbivory Interact to Influence Fine-Root Dynamics

Patterns in Soil Fertility and Root Herbivory Interact to Influence Fine-Root Dynamics

Effects of aerial insecticide sprays on ant communities to control pine wilt disease in Korean pine forests

Isolation and Molecular Characterization of Novel Chlorpyrifos and 3,5,6-trichloro-2-pyridinol-degrading Bacteria from Sugarcane Farm Soils

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