Madras Agricultural Journal
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Biological control of Penicillium expansum causing blue mould of apple by application of Candida spp

Abstract

Two Candida spp. viz. C. sake and C. oleophila were screened in vitro against Penicillium expansum Link. ex F.S. Gray, the causal agent of blue mould disease of apple (Pyrus malus L.). These antagonists significantly inhibited the mycelial growth of the pathogen when compared with the control. The inhibition in the growth of pathogen by C. sake and C. oleophila was about 76.5% and 56.7% respectively. The treatment of inoculated fruits with mycelial extract of Candida spp. showed significantly low disease severity. The treatment reduced lesion diameter by 65.5% and 46.5% respectively.

Keywords: Biological control, Candida spp, P. expansum, Blue mould, Apple

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