Symptom

• Light and dark green mottling on leaves
• Wilting of young leaves
• Leaflets distorted and puckered
• Fern leaf symptoms
• Stunted growth .

Shoe String Symptom

Causal organism:

• Tomato Mosaic Virus

Survival and Mode of Spread

Survival :

• Infected debris

Primary spread:

• In infected debris

Secondary spread:

• Contact with clothes, hand of labourers and implements

Favourable conditions

• Temperature, day length and light intensity, variety, age of the plant at infection and the virulence of the strain of CMV.

Integrated Disease Management

• Disease free seeds
• Removal of infected plants
• Crop rotation

Source of Information

• https:www.apsnet.org.
• Crop production guide – Horticulture 2020

Acknowledgement

• Dr.P.Renukadevi, Professor, Department of Plant Pathology, TNAU, Coimbatore.