The potential role of some plant extracts of antifungal properties against the efficacy of Trichoderma viride for controlling gray mold of onion caused by Botrytis cinerea [electronic resource].

Includes reference.

Botrytis cinerea Pers.; Fr., induces grey mold of onion worldwide. Fungicide applications are often used to control this pathogen. Natural plant extract do not show hazardous effects and likely to be used instead of the synthetic fungicides. In this study, antifungal activity of 5, 10,20 and 40 uL of Mentha longifolia, Origanum marjoram, Artemisia sp and Trichoderma filtrate, respectively were applied in vitro to study their effect on the mycelial growth of B. cinerea using a poisoned food method. All treatments significantly presented their effect on the mycelia growth of the pathogen while the maximum inhibitory effect was shown when 40 uL of the extract was used. The inhibitory effect was affected by the amounts of the extract and the incubation time of the samples. Samples treatment of 40 uL concentration showed a maximum inhibition in the mycelia growth 5 days after incubation.

Summary in Arabic.

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