Physiological Disorders:White Pipe
- When banana plants outgrow their calcium or boron supply, unfurling of the heart leaf is delayed which results in white pipe symptom (Image1).
- Due to delayed unfurling the heart leaf becomes necrotic and subsequently rots (Image2).
This occurs in the active growing stage of the crop. This is observed when there is a good summer shower
- during severe summer season. Also, when there is excess phosphorous in the soil, the uptake of calcium or boron is affected resulting in this type of symptom. In ratoon bananas which are neglected, white pipe is common.