Yellow vein mosaic is a plant disease which is transmitted through .
Name the causative micro-organisms of the following plant diseases :
(a) Rust of wheat (b) Citrus canker (c) Yellow vein mosaic of bhindi (Okra)
What is the mode of transmission of the following diseases ?
(a) Rust of wheat ( b) Cirus canker (c) Yellow vein mosaic of bhindi (Okra)