Cassava mosaic disease (Indian cassava mosaic virus)

Symptoms

• The common mosaic symptoms like irregular light and dark green or yellow patches or streaks appear on the leaves.
• The symptoms are mainly seen on younger leaves.
• The affected leaves become small, stunted, curled, or wrinkled.
• The veins are lighter than normal or banded with dark green or yellow discoloration.
• The affected plants shows tuber splitting and yield reduction.

Management

• Use of resistant varieties like M4, H 97, H 165, Sree Swarna, Sree Padmanabha .
• Select setts from healthy plants.
• Rouge out and destroy infected plants in the field at early stage.
• Control whitefly by installing yellow sticky traps
• Remove weed hosts
• Spray neem oil (20 ml/ litre of water).

Chemical Control

Extremely Toxic

Highly Toxic

Moderately Toxic

Slightly Toxic