Biological Control of Gray Mold, Blue Mold & Rhizopus Soft Rot on Grape, Pear, Kiwi, Strawberry by Trichoderma harzianum

This research aimed at evaluation of biological effectiveness of Trichoderma harzianum against the gray mold, blue mold and rhizopus soft rot caused by B. cinerea, P. expansum and R. stolonifer, respectively, on four types of fruits (Grape, Pear, Kiwi, and strawberry). Also, it aimed at determination of the minimum protection period from infection with gray mold, blue mold and Rhizopus soft rot on the same types of fruits. T. harzianum was applied in form of invert emulsion (water- in- oil formulation) after being introduced into the emulsion in form of conidia, in addition to using non-formulated form of the fungus. The experiments of evaluation of efficacy was carried out under laboratory conditions
(18± 2 °C) and 16 hours of illumination per day under humid conditions (100٪). Results obtained have demonstrated that the treatment with the fungus ( T. harzianum) formulated in invert emulsion reduced significantly gray mold, blue mold and Rhizopus soft rot lesion diameter compared to other treatments. Significant differences (P<>

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