Effect of culture filterates of three Trichoderma species, Fusarium solani and Rhizoctonia solani on egg hatching and juvenile mortality of Meloidogyne incognita in vitro [electronic resource].

Includes references.

Culture filtrates of three Trichoderma spp. (T. album, T. harzianum and T. viride), Fusarium solani (Mart.) Sacc., and Rhizoctonia solani Kuhn have been found to cause adverse effects on egg hatching and juvenile mortality of the root-knot nematode, Meloidogyne incognita (Kofoid and White) Chitwood in vitro. The nematicidal activity was directly proportional to concentration of culture filtrates. T. viride gave the highest effect followed descendingly by T. harzianum and T. album. Moreover, the inhibitory effect of tested Trichoderma spp., culture filtrates on egg hatching was more pronounced when they were grown on gliotoxin fermentation medium (GFM) as compared to the parallel values when they were grown on potato dextrose broth (PDB) medium. Culture filtrates of F.solani and R.solani significantly reduced number of hatched juveniles and increased juvenile mortality of M.incognita. The inhibition of nematode hatching was significantly affected by fungal species, presence of fungal spores and mycelia in the filtrate and concentration used.

Summary in Arabic.

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