Efficacy of Several Potential Biocontrol Agents against Sclerotinia sclerotiorum

ISSN: 0973-7510

E-ISSN: 2581-690X

Efficacy of Several Potential Biocontrol Agents against Sclerotinia sclerotiorum

Abdurahman H. Hirad¹, Mohamed Elsheshtawi², Ali H. Bahkali¹, Abdallah M. Elgorban^1,3 and Shaban R.M. Sayed⁴

¹Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.

²Department of Plant Pathology, College of Agriculture, Mansoura University, Mansoura, Egypt.

³Plant Pathology Institute, Agricultural Research Center, Giza, Egypt.

⁴Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia.

J Pure Appl Microbiol. 2014;8(Spl. Edn. 2):267-271

Received: 25/09/2014 | Accepted: 01/11/2014 | Published: 30/11/2014

Abstract

In vitro seventeen antagonistic microorganisms were evaluated against phytopathogen Sclerotinia Sclerotiorum by dual culture techniques. After 3 days from incubation, the maximum growth inhibition of the tested pathogen was noticed by Coniothyrium minitans (75.83%) followed by Trichoderma hamatum (63.33%). Also, after 15 days, the highest reduction of mycelial growth of S. sclerotiorum came from C. minitans (91.11%) followed by T. hamatum (85.83%). In case of sclerotia germination, C. minitans and T. hamatum significantly inhibited sclerotia germination with 95.83 and 91.67% reduction, respectively.

Keywords

Sclerotinia sclerotiorum, White rot, Glicoladium catenulatum, Biocontrol

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