Nematicidal activity of nanoparticles and salicylic acid against root-knot nematode (Meloidogyne javanica) Haque Ziaul*, Khan Mujeebur Rahman, Ansari Mohd Shahid Anwar, Nawaz Sarwar, Haidar Lavi Department of Plant Protection, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh - 202 002, India *Corresponding author; E-mail: zia_haq07@yahoo.com, ORCID ID: 0000-0003-3300-2304
Online published on 26 July, 2024. Abstract The comparative nematicidal activity of 12 nanoparticles (NPs) viz., cobalt ferrite (CoFe2O4), elemental copper (Cu-), ferric oxide (Fe2O3), nickel ferrite (NiFe2O4), nickel peroxide (NiO2), Polyaniline (PANI), Polyaniline + ferrite (P600), tin oxide (SnO2), titanium oxide (TiO2), zinc ferrite (ZnFe2O4), zinc oxide (ZnO2), zinc peroxide (ZnO2), and salicylic acid (SA) were evaluated against root-knot nematode, Meloidogyne javanica. In vitro screening of NPs and SA at 5 μg/mL, 10 μg/mL, 15 μg/mL, 20 μg/mL, and 25 μg/mL revealed considerable variability in inhibiting the hatching of eggs and causing mortality of M. javanica juveniles. In general, the NPs that caused significant inhibition in hatching also caused maximum mortality, and their effectiveness increased with the increasing concentrations. Among the NPs, zinc peroxide (20 μg/mL), salicylic acid (20 μg/mL), zinc oxide (20 μg/mL), elemental copper (20 μg/mL), nickel peroxide (25 μg/mL) and ferric oxide (25 μg/mL) caused the greatest inhibition in the hatching with 100 per cent mortality of M. javanica J2. Overall effectiveness of NPs and SA on the egg hatching and mortality of M. javanica at 20 μg/mL were in order of: Zinc peroxide > Salicylic acid > Zinc oxide > Elemental copper > Nickel peroxide > Ferric oxide > Tin oxide > Titanium oxide > Polyaniline > Polyaniline + ferrite > Cobalt ferrite > Zinc ferrite > Nickel ferrite. Top Keywords Nano-formulation, Nematode hatching, Nematode mortality, Plant parasitic nematodes. Top |