ISHS Acta Horticulturae 635: XXVI International Horticultural Congress: Managing Soil-Borne Pathogens: A Sound Rhizosphere to Improve Productivity in Intensive Horticultural Systems
ANTAGONISTIC EFFECTS OF TRICHODERMA HARZIANUM ON PHYTOPHTHORA DRECHSLERI, THE CASUAL AGENT OF CUCUMBER DAMPING-OFF |
| Authors: | A. Sharifi Tehrani, S. Nazari |
| Keywords: | biocontrol, disease prevention, Trichoderma, Phytophthora, cucumber |
| Abstract:
One of the most important diseases of cucumber is Phytophora damping–off caused by Phytophthora drechsleri Tucker. This study investigated the potential for biocontrol of the disease using a single isolate of the fungal pathogen antagonist Trichoderma harzianum and compared the efficacy of the isolate with traditional chemical control methods. Antagonism occurred through hyphal contact, coiling, vacuolation, and lysis. Volatile metabolites of T. harzianum caused 86.6 per cent inhibition of fungal growth. T. harzianum was as effective against P. drechsleri in soil systems tests as most of the chemical treatments. | |
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