The impact of fluazaindolizine on free?living nematodes and the nematode community structure in a root?knot nematode infested vegetable production system

BACKGROUND Fluazaindolizine is a novel sulfonamide nematicide that currently under commercialization in various countries. Four trials (two tomato, two zucchini) were carried out over growing seasons root-knot nematode (RKN; Meloidogyne incognita)-infested plastic house to test the effects of single application fluazaindolizine at 1000 and 2000 g ha–1, on RKN, resident community estimate any side soil food web ecological functions. The composition was evaluated three sampling times, pre-treatment (before preparation), planting (after application) harvest. Nematode abundance nematode-based indices, such as maturity indices (Structure, Basal, Enrichment index) metabolic footprints calculated compared between untreated treatments times. RESULTS In both crops rates significantly reduced numbers RKN well observed root galling showed low impact other plant-parasitic nematodes, harvest some ectoparasites Telotylenchus even higher values within nematicide-treated plots than control. Overall, neither decreased bacterivorous, fungivorous or omnivorous densities, nor indices. However, we slight reductions structure index increases basal might indicate adverse functions resulting from application. Still those impacts considered small preparation. CONCLUSIONS good level selectivity towards therefore could become useful tool integrated management approaches also complements health maintaining diversity soil.