Isolation and pathogenicity of myrothecium roridum causing myrothecium leaf spot of soyabean

The mycelium of the fungus was branched and non-septate. Conidia hyaline or olive green to slightly dark, one-celled, ovoid to elongate or rod shaped with rounded ends measuring 2.0 to 2.5 × 5.5 to 6.5 μm. Inoculated plants produced numerous lesions on upper surface, which became dark grey to brown and later merged, get enlarged and the leaves were dried. In laboratory conditions the numerous small, round to oval grayish spots were formed which later became darker and at last the entire leaves were dried.