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Authors
Affiliations
1 Department of Plant Pathology, Tirhut College of Agriculture, Dholi, Muzaffarpur, 843 121, Bihar, IN
Source
Journal of Biological Control, Vol 20, No 2 (2006), Pagination: 247-250
Abstract
In dual culture, all the three antagonists, viz. Trichoderma vireus Milter, Giddens and Foster, Trichoderma harzianum Rifai and Trichoderma viride Pers. ex. Fr. overgrew the colony of Alternaria alternate (Fries) Keissler but T. viride parasitized the test fungus earliest. T. viride exhibited highest growth rate in mono and dual culture. Studies on hyphal interaction between antagonist and test fungus revealed disorganization of protoplasmic content and lysis of hosl hyphae. T. viride exhibited 36.33 per cent disease control and proved superior in providing protection against Alternaria leaf spot of Vicia faba in field than T. vireus and T. harziauum.
Keywords
Alternaria alternata, Bioagents, Vicia faba.
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