Question

7. A farmer was growing citrus plants in his garden and took good care of it. After few days he noticed lesions (damaged parts) on leaves and twigs which slowly spread to the fruits and led to them falling prematurely. Can you help him find the reason and suggest possible solution?​

Answer 1

Answer:

the citrus plant is suffering from disease called citrus canker

Explanation:

it is caused by bacteria Xanthomonas Axonopodis

there is no cure for citrus canker it can only be prevented

1-defoliation of diseased leaves

2-growing resistant variety

3-by using copper based sprays

4-by planting windbreakers

Answer 2

The reason due to which the farmer noticed lesions or damaged parts on leaves and twigs which slowly spread to the fruits and led them to fall prematurely is Citrus canker.

Explanation: Citrus canker is an incurable disease caused by the bacterium Xanthomonas citri subsp. citri.

• This bacterium damages the leaves, twigs and the fruit of the citrus plants due to which the leaves start dropping and unripe fruit begin to fall in the ground.
• Citrus canker slowly spread to the other parts of the plant body as well.
• There is no cure for the disease of citrus canker, however, the following precautions can be taken to prevent the occurrence of this disease:

1. The diseased leaves should be removed or defoliated from the plant.  
2. The variety of plants that showed resistance against this disease should be grown by the farmers  
3. There are different types of chemical sprays present in the market that help in protecting the plants from the disease of citrus canker.
4. The planting of windbreakers can also avoid the interaction of the bacterium causing citrus canker and the plant.