AskSia

Plus

Explain the pathogenesis and disease management of citrus canker disease in plan...

Dec 13, 2023

Explain the pathogenesis and disease management of citrus canker disease in plants

Answer

Citrus canker is a bacterial disease that affects the epidermal tissues of citrus plants, leading to lesions and fruit drop, and is managed through a combination of cultural practices, chemical treatments, and resistant varieties.

Solution

a

Pathogenesis of citrus canker involves infection by the bacterium Xanthomonas citri subsp. citri

b

The bacteria enter through stomata or wounds, multiply, and cause raised corky lesions on leaves, fruit, and stems

c

Disease management includes:

d

Cultural practices such as pruning infected branches and avoiding the spread through contaminated tools

e

Chemical treatments with copper-based bactericides to reduce bacterial spread

f

Planting resistant citrus varieties to reduce the incidence of the disease

Key Concept

Citrus canker pathogenesis and management

Explanation

Citrus canker is caused by a bacterium that infects citrus plants, leading to lesions and fruit drop. Management strategies include cultural practices, chemical treatments, and the use of resistant varieties to prevent and control the disease.