Adverse effects of the cyfluthrin on Cyphoderus javanus Borner (Collembola) in soil

Abstract

Soil collembolans are key model organisms for ecotoxicological studies and play an inevitable role in litter degradation, nutrient cycling, energy flow and various ecosystem functioning. The detritivore collembolan, yphoderus javanus, was used to determine the toxicity of insecticide formulation cyfluthrin under laboratory conditions. The impacts of insecticide cyfluthrin on life history parameters of C. javanus revealed that mortality rates increased with increasing concentration. The fecundity rates, the number of eggs laid, the number of juveniles’ emergence and longevity were found to be decreased drastically with insecticidal exposure. The high mortality of soil collembolans deducts the decomposition rate of organic matter and leaf litter, thereby reducing the fertility of soil.