Fruit rot

This page under construction. 

Note: Durian fruit rot is caused by the same fungus that also causes Durian root and stem rot. They are discussed as two separate diseases as the symptoms and management practices are different.

Signs and symptoms

Under humid conditions with frequent rain, the fungus will spread to big branches where it will cause juicy spots, change of tissue color and yellowing of leaves. 

If the disease infests the leaves, brown spot appear and the disease will spread into the fruit. Usually brown spots are visible on the rotting fruit. This brown spot will expand and eventually the rotted fruit will fall down. This symptom is often found at about 1 month before harvesting. The mature fruit having brown spot will split and other fungi can infect and destroy the fruit. For example Lasiodiplodia sp. are the cause of black color in durian meat. 

On the skin of rotted fruits which fall down on the ground, usually appears a white fluff, which is mycelium and zoosporangium of Phytophthora palmivora.

Source and spread

Usually found Lasiodiplodia in infected tissue as it was identified.

Role of environmental factors

Importance - plant compensation - physiological impact

Natural enemies - antagonists

Management and control practices

Prevention activities

Once an infection is present in the field

Points to remember about Durian fruit rot