Ramadan A. Bakr, Alaa A. Nafea, Magdy E.S. Mahdy, El-Shawadfy M. Mousa


In Egypt, root knot nematodes (RKN) were shown to be significant plant parasites with a variety of host plants. Under laboratory and greenhouse circumstances, the current study examines the antagonistic effects of four distinct yeast isolates on Meloidogyne spp. egg hatching and larval mortality. In comparison to the control, the results showed that Pichia guilliermondii ATCC 9058 had the highest egg hatching inhibition and larval mortality, which were 93 and 100%, respectively, after 168 hours of exposure. Pichia guilliermondii ATCC 9058 at 4% of soil weight, one-week pre nematode inoculation achieved the highest reduction in nematode parameters i.e., number of galls, egg masses, females, and number of juveniles (J2s)/250g soil, with 89.6, 90, 88.7 and 90%, respectively., followed by S. cerevisiae at 4% of soil weight, one-week pre nematode inoculation application, with 84.4, 88.3, 88.4 and 85.3%, respectively. Used yeast isolates could therefore be a useful biocontrol tool for plant parasitic nematodes.


Root-Knot Nematodes, Meloidogyne spp., Biological Control, Yeast

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