Isolation and Identification of Fungi Associated with Teak (Tectona grandis L.) Seedlings at the University of Ilorin Teak Plantation, Kwara State, Nigeria

Abstract

A disease survey was carried out at the University of Ilorin Commercial Tree Planting site in Ilorin, Kwara State, Nigeria. This site was planted to teak (Tectona grandis L.). Different disease symptoms were observed on the teak leaves. Isolations from the leaves yielded eight different fungal species namely Nigrospora sp., Aspergillus nidulans, A. niger, Curvularia sp., Phoma sp. Rhizoctonia sp., isolate G and isolate I. Three of these isolates namely Curvularia, Phoma, and Rhizoctonia, spp. proved pathogenic on teak leaves under the conditions of this study. The three pathogenic isolates responded
differently to different culture media but the best medium for growth was yeast extract agar (YEA). Growth of the test organisms
was also affected by temperature.