Effects of three pesticides on <i>Poecilus cupreus</i> (coleoptera: carabidae) at different post-treatment temperatures

Heimbach, Udo; Baloch, Ahmad Ali

doi:10.1002/etc.5620130216

Cited by 8 publications

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

A Field Bioassay Approach to Assess the Toxicity of Insecticide Residues on Soil to Collembola

Wiles

Frampton

1996

Pestic. Sci.

View full text Add to dashboard Cite

Field bioassays were conducted to assess the toxicity of three insecticides, chlorpyrifos, cypermethrin and pirimicarb, to four species of springtails, Isotoma viridis, Isotomurus palustris, Folsomia candida (Collembola: Isotomidae) and Sminthurus viridis (Collembola: Sminthuridae). Spray residues on two soil types (a sandy clay loam and a sandy soil) were obtained in the field, in the presence and absence of a wheat crop canopy, after spray application by a commercial tractor-mounted sprayer. Collembola were then confined for 24-h periods on the sprayed soils in a constant laboratory environment at 1, 2, 3, 8 and 15 days after treatment. Residual insecticide toxicity was compared between species, insecticides, soils and exposure conditions (crop or no crop) using the age of residue at which median mortality occurred (DAT,,). Cypermethrin and pirimicarb residues were of low toxicity, causing less than 10% mortality, whereas residues of chloryprifos were toxic to all four species of Collembola on both soil types and in both exposure treatments. Interspecific differences in collembolan susceptibility to chlorpyrifos residues gave the ranking (from most to least susceptible) S. viridis > F. candida > Isotomurus palustris > Isotoma viridis. Residues on the sandy soil were more toxic than those on the sandy clay loam. These results are discussed in terms of how field bioassay approaches may be used to determine pesticide residual toxicity to microarthropods. We conclude that field bioassays offer a feasible method for evaluating the toxicity of pesticides and the persistence of toxic effects on Collembola. Advantages and disadvantages of this method are considered.

show abstract

A Field Bioassay Approach to Assess the Toxicity of Insecticide Residues on Soil to Collembola

Wiles

Frampton

1996

Pestic. Sci.

View full text Add to dashboard Cite

show abstract

Effects of soil organic matter content and temperature on toxicity of dimethoate to Folsomia fimetaria (Collembola: Isotomiidae)

Martikainen

Krogh²

1999

Environmental Toxicology and Chemistry

View full text Add to dashboard Cite

The purpose of these experiments was to study the effects of two major environmental factors, soil organic matter content (1.4-8.6%) and temperature (10-20ЊC), on chemical toxicity to a soil-dwelling collembolan Folsomia fimetaria. Dimethoate was used as a reference chemical. Effects on survival, reproduction, and juvenile size were investigated. Increasing soil organic matter content reduced toxicity significantly, but the differences disappeared when results were recalculated and expressed as soil pore-water concentrations. This supported the soil pore-water hypothesis. The effects of soil temperature were not so clear, because temperature affects not only the growth and reproduction of the collembolan but also the chemical degradation. In general, decreasing temperature seemed to increase toxic effects. The procedure for toxicity testing with F. fimetaria was further improved by using adults at stage 7 to 8, when males and females could reliably be distinguished by size. Furthermore, image processing was applied for the first time in the counting and size measurements of the collembolans.

show abstract

Temperature–Time Relationship in Collembolan Response to Chemical Exposure

Martikainen

Rantalainen

1999

Ecotoxicology and Environmental Safety

View full text Add to dashboard Cite

Effects of three pesticides on Poecilus cupreus (coleoptera: carabidae) at different post-treatment temperatures

Cited by 8 publications

References 17 publications

A Field Bioassay Approach to Assess the Toxicity of Insecticide Residues on Soil to Collembola

A Field Bioassay Approach to Assess the Toxicity of Insecticide Residues on Soil to Collembola

Effects of soil organic matter content and temperature on toxicity of dimethoate to Folsomia fimetaria (Collembola: Isotomiidae)

Temperature–Time Relationship in Collembolan Response to Chemical Exposure

Contact Info

Product

Resources

About