Spatial variation in non-target effects of the insecticides chlorpyrifos, cypermethrin and pirimicarb on Collembola in winter wheat

Frampton, Geoff K

doi:10.1002/(sici)1096-9063(199909)55:9<875::aid-ps52>3.0.co;2-s

Cited by 39 publications

(10 citation statements)

References 42 publications

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“…Controls were treated with water only. Both insecticides are known to be very effective (Clements et al 1986;Brown and Gange 1989a;Frampton 1999;Jagers op Akkerhuis et al 1999;Scheu and Alphei, unpublished data). Since broad-spectrum insecticides (e.g., organophosphates) are widely used in agriculture their effectiveness has been documented and evaluated in a large body of literature.…”

Section: Study Site and Experimental Designmentioning

confidence: 99%

Secondary succession is influenced by belowground insect herbivory on a productive site

et al. 2003

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We investigated the effects of insect herbivory on a plant community of a productive old-field community by applying foliar and soil insecticides in a full factorial design. During the first 3 years of succession, insecticide treatments had only minor effects on total cover abundance and species richness. However, species ranking within the plant community was strongly affected by soil insecticide but not by foliar insecticide. Creeping thistle, Cirsium arvense, dominated the experimental plots with reduced root herbivory, while square-stemmed willow-herb, Epilobium adnatum, dominated the control and the plots with foliar insecticide. When soil insecticide was applied, cover abundance of monocarpic forbs increased and cover abundance of polycarpic herbs decreased compared to the control. However, this effect was due to a few abundant plant species and is not based on a consistent difference between life history groups. Instead, application of soil insecticide promoted persistence of species that established at the start of succession, and suppressed species that established in the following years. We conclude that below-ground herbivory reduces competitive ability of resident species and, thus, facilitates colonization by late-successional species. Hence, soil insects can exert strong top-down effects on the vegetation of productive sites by affecting dominant plant species and altering competitive balances.

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Section: Study Site and Experimental Designmentioning

confidence: 99%

Secondary succession is influenced by belowground insect herbivory on a productive site

et al. 2003

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“…The detrimental effects of single pesticides on nontarget spider populations are well documented, with both laboratory and field-based studies showing large reductions in spider abundance after the application of pyrethroid (Pullen et al, 1992;Frampton, 1999;Shaw et al, 2006) and organophosphorus pesticides (Pedersen et al, 2002;Babczynska et al, 2006;Deng et al, 2006). Among the spider families, Linyphiidae are particularly sensitive to pesticides (Pullen et al, 1992;Wiles & Jepson, 1992;Dinter & Poehling, 1995;Thomas & Jepson, 1997;Holland et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Dimethoate, fenvalerate and their mixture affects Hylyphantes graminicola (Araneae: Linyphiidae) adults and their unexposed offspring

Peng

Shao

Hose

et al. 2010

Agri and Forest Entomology

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1 Mixtures of organophosphorus and pyrethroid insecticides are widely used to combat resistance in agricultural pests, although few studies have been conducted on the effects of pesticide mixtures on beneficial nontarget organisms. 2 In the present study, we exposed adult females (F 0 ) of Hylyphantes graminicola (Araneae: Linyphiidae) to fenvalerate, dimethoate and their commercially available 1 : 1 mixture (by mass). We investigated the acute toxicity of these pesticides to the exposed adults, as well as sublethal effects on reproduction and acetylcholinesterase and carboxylesterase activity. We also studied the effects of parental exposure on the size, development and enzyme activity of unexposed offspring. 3 All three formulations were acutely toxic to H. graminicola, with synergism between dimethoate and fenvalerate leading to greater toxicity in the 1 : 1 mixture than for the two insecticides alone. The sublethal effects of direct pesticide exposure were a reduction in acetylcholinesterase and carboxylesterase activity and a reduction in the number of egg sacs produced by exposed spiders relative to the control spiders. The unexposed offspring of the fenvalerate and mixture exposed spiders were smaller and took longer to mature than the control spiders. Offspring of all exposed spiders also had significantly reduced carboxylesterase activity relative to control spiders. 4 We concluded that the effects of parental exposure on the offspring were likely to increase their susceptibility to future pesticide exposures, and reduce the capacity of this spider to serve as a pest control agent.

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“…2002a,b 2004). Insecticide impact in temperate areas is usually higher (Wiles and Frampton 1996; Frampton 1997, 1999), a likely reflex of their lower rate of degradation in such conditions compared with tropical areas (International Programme on Chemical Safety 1990; Naumann 1990; Racke 1993).…”

Section: Discussionmentioning

confidence: 99%

“…1997). Curiously though, the impact of insecticides on arthropods associated with no‐tillage cultivation systems has proved negligible in the few studies carried out so far in the tropics, in contrast to that which usually takes place in the temperate zone (Frampton 1997, 1999; Michereff‐Filho et al. 2002a, 2004; Araújo et al.…”

Section: Introductionmentioning

confidence: 99%

Non‐target impact of deltamethrin on soil arthropods of maize fields under conventional and no‐tillage cultivation

Badji¹,

Guedes²,

Silva³

et al. 2007

J Applied Entomology

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Deltamethrin is a commonly used insecticide for controlling its key maize pest, the fall armyworm Spodoptera frugiperda (Lep., Noctuidae). Its toxicological profile is well known, but its impact on arthropods widely reported as bioindicators, mainly springtails (Collembola) and mites (Oribatida), is yet to be assessed in tropical maize fields. The treatments used to circumvent this shortcoming were conventional cultivation and no-tillage cultivation (with a presowing application of 2,4-D and glyphosate) systems with or without deltamethrin spraying. The deltamethrin residue analysis of soil samples by gas chromatography did not detect the insecticide 24 h after it was sprayed on the maize fields. There was no significant overall effect of deltamethrin based on principal component analysis. However, repeated-measures analyses of variance detected significant impact of deltamethrin in a species of Nitidulidae (Coleoptera). The cultivation system also provided significant impact on Oribatida and Gamasida soil mites and on the same Nitidulidae species referred above, which were more abundant in the conventional cultivation system. Springtails were also significantly affected by the cultivation system showing greater abundance in the conventional system, except Podumorpha. Analyses using only high taxonomic levels did not allow the detection of impact in the ant assemblage assessed. The results suggest that the impact of deltamethrin on soil arthropods from tropical fields varies among species and is lower than expected. The cultivation system imposes more drastic effects on arthropod assemblage.

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Spatial variation in non-target effects of the insecticides chlorpyrifos, cypermethrin and pirimicarb on Collembola in winter wheat

Cited by 39 publications

References 42 publications

Secondary succession is influenced by belowground insect herbivory on a productive site

Secondary succession is influenced by belowground insect herbivory on a productive site

Dimethoate, fenvalerate and their mixture affects Hylyphantes graminicola (Araneae: Linyphiidae) adults and their unexposed offspring

Non‐target impact of deltamethrin on soil arthropods of maize fields under conventional and no‐tillage cultivation

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