ISHS Acta Horticulturae 255: III International Symposium on Soil Desinfestation
PRESENCE OF SCLEROTINIA MINOR JAGGER ANTAGONISTS IN SOILS FROM DIFFERENT MEDITERRANEAN AREAS. II. SCLEROTIA DECAYING FUNGI |
| Authors: | G. Vannacci, S. Pecchia, E. Resta |
| Abstract:
The presence of antagonists of Sclerotinia minor was investigated in soils with a recent history of Sclerotinia spp. diseases. Eight soils were collected from several Italian regions and two areas facing the Mediterranean sea (Jugoslavia, Lebanon). The microorganisms, isolated from these soils using sclerotia of S. minor as baits, along with others isolated in a previous research were tested 'in vitro' to quantify their mycoparasitic competence against this pathogen. Nineteen microorganisms, leaving a percentage of healthy sclerotia equal to or lower than 10 %, were challenged against sclerotia of four more pathogens, namely : Sclerotinia sclerotiorum, Sclerotium cepivorum, S. rolfsii and Botrytis tulipae. Percentages of sclerotia remaining unaffected by the antagonists varied from 0 to 100 %. The Competitive Saprophytic Ability of Fusarium, Trichoderma and Gliocladium isolates was also determined. | |
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