ABSTRACT
This chapter presents detailed information about citrus diseases and their preventive measures. The large citrus fruits of today evolved originally from small, edible berries over millions of years. Citrus plants are native to subtropical and tropical regions of Asia and the Malay Archipelago, and they were initially domesticated in these areas. Citrus black spot is one of the most important diseases in major citrus production areas of the world, such as Asia, South America, South Africa, and Australia. Greasy spot is a major foliar and fruit disease on citrus. A. citri grows saprophytically on dead citrus tissue and produces airborne conidia. Citrus brown rot is one of the most common diseases of Citrus. The fungus, C. gloeosporioides, which causes anthracnose, is very common in citrus orchards. Citrus Canker is one of the most feared of citrus diseases, affecting all types of important citrus crops. Typical citrus canker lesions on fruit will range from 1 to 10 mm in size.
