Wada_2008_Microbes.Environ_23_331

Reference

Title : Effect of three organophosphorous nematicides on non-target nematodes and soil microbial community - Wada_2008_Microbes.Environ_23_331
Author(s) : Wada S , Toyota K
Ref : Microbes Environ , 23 :331 , 2008
Abstract :

The toxicity of three organophosphorous nematicides, imicyafos, fosthiazate and cadusafos, to non-target organisms in soil was evaluated. Imicyafos and fosthiazate had no significant inhibitory effect on the growth of fungal (Fusarium oxysporum f. sp. lactucae, Rhizoctonia solani and Trichoderma viride) and bacterial (Ralstonia solanacearum and Pseudomonas fluorescens) strains in media at 12.5 to 200 mg L(-1). Cadusafos, however, significantly inhibited the growth of all these strains except R. solanacearum. A pot test was conducted using a soil naturally infested with Pratylenchus penetrans, and treated with imicyafos or fosthiazate, which are less toxic to non-target organisms. The density of P. penetrans decreased to less than 10% of the control level after exposure to imicyafos and fosthiazate at 3 kg active ingredient ha(-1), the conventional dose. No significant effect was observed on the density of free-living nematodes, cellulose decomposition activity, microbial biomass evaluated with the ATP method and number of ammonia oxidizers between the soil treated with imicyafos or fosthiazate and the untreated control soil. Our results revealed that imicyafos and fosthiazate effectively suppressed a plant-parasitic nematode, P. penetrans, but had little impact on free-living nematodes and the soil microbial community.

PubMedSearch : Wada_2008_Microbes.Environ_23_331
PubMedID: 21558727

Related information

Citations formats

Wada S, Toyota K (2008)
Effect of three organophosphorous nematicides on non-target nematodes and soil microbial community
Microbes Environ 23 :331

Wada S, Toyota K (2008)
Microbes Environ 23 :331