Non-chemical management strategy for leaf blight of dicoccum wheat.
Ramachandra C. G., Kalappanavar I. K.
Author Affiliation: Department of Plant Pathology, University of Agricultural Sciences, Dharwad (Karnataka), India.
International Journal of Agricultural Sciences 2 : 503-504
Abstract : Antagonists and plant extracts (5 and 10%) were evaluated in vitro for efficiency in controlling leaf blight (Exserohilum hawaiiensis) on dicoccum wheat (Triticum dicoccum). The tested antagonists were: Trichoderma harzianum (Dharwad strain), Trichoderma harzianum (Bangalore strain), Trichoderma koningii, Trichoderma viride, Gliocladium virens and Pseudomonas fluorescens. The aqueous extracts used were obtained from 16 antifungal plants. P. fluorescens, Trichoderma viride and Trichoderma harzianum were effective in controlling the growth of the pathogen. P. fluorescens showed maximum inhibition of mycelial growth (76%). Leaf extracts from Duranta repens [D. erecta], Mangifera indica, Azadirachta indica and Clerodendrum inerme showed maximum inhibition of mycelial growth.