Question

What is the mode of transmission of the following diseases?
a.Rust of wheat
b.Citrus canker
c.Yellow vein mosaic of bhindi(Okra)​

Answer 1

Answer:

(c) Yellow vein mosaic of bhindi (Okra) - insect

Infections can lead up to 20% yield loss, which is exacerbated by dying leaves, which fertilize the fungus. Okra yellow vein mosaic is a viral disease caused by monopartite Begomovirus affecting okra plants. This disease is transmitted by whitefly.

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Answer 2

Answer:

( a ) Leaf rust spores are spread by wind and splashing water. Optimal environmental conditions for development of infection are temperature ranging from 59 to 68 degrees F and at least six hours of moisture on the leaf surface.