Chlorosis

Chlorosis:- 

> Chlorosis is a yellowing of normally green leaves due to a lack of chlorophyll. Many factors, singly or in combination, contribute to chlorosis.

> Yellowing of the entire network of veins in the leaf blade is the characteristic symptom.

> In severe infections the younger leaves turn yellow, become reduced in size and the plant is highly stunted.

> The veins of the leaves will be cleared by the virus and intervenal area becomes completely yellow or white.

> In a field, most of the plants may be diseased and the infection may start at any stage of plant growth.

> Infection restricts flowering and fruits, if formed, may be smaller and harder.

> The affected plants produce fruits with yellow or white colour and they are not fit for marketing.