Resumo

POZO-SERRANO, Jonathan et al. Antagonic effectiveness in vitro of Trichoderma sp. in front of Stemphylium lycopersici. cultrop [online]. 2019, vol.40, n.3  Epub 04-Ago-2019. ISSN 1819-4087.

Stemphylium lycopersici is one of the causal agents of the gray spot on the tomato leaves, a recurrent and widespread pathology in tomato crops in Holguín. The in vitro antagonism of Trichoderma harzianum strains A-34, A-53 and Trichoderma viride TS-3 was evaluated against Stemphylium lycopersici. The confrontation was carried out by means of an antagonism assay in Papa Dextrose Agar PDA culture medium. The indicator evaluated was the mycelial inhibition percentage IM (%).The three strains of Trichoderma sp. showed high antagonistic effectiveness in vitro against Stemphylium lycopersici.

Palavras-chave : tomato; biocontrol, mycelium, inhibition, pathogen.

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