Question

Name three plant diseases caused by microorganisms. Name the microorganism each is caused by and how each disease spreads.

Answer 1

The three plant diseases caused by microorganisms are:
(a) Citrus canker: It is a bacterial disease that affects trees of citrus fruits and is spread by air.
(b) Yellow vein mosaic: It is a viral disease that affects vegetables such as bhindi. It is spread by insects.
(c) Rust of wheat: It is a fungal disease that spreads by air and seeds.