It is also helpful to provide good ventilation and plenty of light since these will decrease the chance of spreading the fungus. Heavily infected bulbs should probably be discarded. Bulb rot , Penicillium, Fusarium . This disease often develops during storage and is frequently associated with mechanical injury or damage from mites. Infection is favored by moist conditions.
Control is achieved through careful digging to avoid wounding.
It is also helpful to control insect and mite pests. Infected bulbs should be destroyed. This trouble is fairly widespread and characterized by the appearance of flower buds which turn brown and dry up before opening. The cause is unknown but is thought to be related to weather. Bulbs with this symptom year after year can be dug and discarded.