Symptom : Rapid and complete wilting of plant. Lower leaves drop before wilting . Yellow brown discolouration of tissues. White bacterial ooze from cut ends.

• Rapid and complete wilting of plant.
• Lower leaves drop before wilting .
• Yellow brown discolouration of tissues.
• White bacterial ooze from cut ends.

Infected plant

Wilting of plants

Causal organism :

Causal organism : Ralstonia solanacearum (Smith) Yabuuchi

• Ralstonia solanacearum (Smith) Yabuuchi

Survival and Mode of Spread

Survival :

• Infected plants and soil

• Infected plants

Primary spread:

Primary spread: Infected plants

Secondary spread:

Secondary spread: Wounds, soil and implements

• Wounds, soil and implements

Favourable conditions

• High soil moisture.

Integrated Disease Management

• Crop rotation
• Disease free seedlings.
• Restriction of irrigation.
• Drenching with bleaching powder @ 4 kg/ac
• Soil application of neem cake @ 100 kg/acre

Source of Information

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

Acknowledgement

• Photo courtesy by Dr.S. Vinodkumar
• Dr.P.Renukadevi, Professor, Department of Plant Pathology, TNAU, Coimbatore.
• Dr.N.Indra, Associate Professor, Department of Plant Pathology, TNAU, Coimbatore.