Rubbery rot

Geotrichum candidum

Symptoms

• Rotten, rubbery tubers
• Rot develops from the outside to the inside of tubers
• Sour smell
• Pink colouration after exposure to the air
• Symptoms are similar to pink rot
• Fungal growth resembles white sugar
• Infection can allow bacterial wet rot to develop

Infection and spread

• Found in most soils
• Geotrichum candidum affects the eyes of seed tubers, resulting in less stems at emergence
• Mainly occurs when tubers are sat in wet, cold soil

Possible confusion with

• Pink rot (Phytophthora erythroseptica)