Aphanocladium album by via sub-irrigation in the control of Pyrenochaeta lycopersici and Meloidogyne incognita on tomato in a plastic-house
2008
Sasanelli, N. | Ciccarese, F. | Papajová, I.
Two experiments were carried out to assess the efficacy of different chemicals (azoxystrobin, fosthiazate, metham-sodium) and of the chitinolytic fungus Aphanocladium album (isolate MX-95), that could be alternatives to methyl bromide, against the soil borne pathogen Pyrenochaeta lycopersici and the root-knot nematode Meloidogyne incognita on tomato in a plastic house in southern Italy. In the first trial, the treatments were azoxystrobin (1.25 l a.i. /ha), fosthiazate (1.5 l a.i. /ha) and biological control agent Aphanocladium album isolate MX-95 (2.5 l/plot at 2×107 CFU/ml; plot surface 96 m2). In the second experiment, treatments were metham-sodium (1000 l c.p./ha) and A. album (5 l/plot at 1×107 CFU/ml). In both trials, chemicals and the fungus were applied by via sub-irrigation. Satisfactory control of the corky root and the root-knot nematode attack and a significant yield increase were obtained by application of azoxystrobin, fosthiazate and metham-sodium. A significant reduction of M. incognita soil population density occurred in plots treated with A. album. Also, high positive correlations were found between the symptoms caused on tomato roots by M. incognita and P. lycopersici.
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