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Why are our oranges going mouldy while still on the tree?

the oranges skin is soft and blue/white mould covers them, there are no maggots inside when you cut open,it can be 1 only in a bunch that goes like this

Fruit and Citrus • Diseases

It seems that your oranges are affected by blue mould. This mould infects mature fruit and is mostly a post harvest problem. The disease begins as small, soft, water soaked areas and expands to cover the whole fruit. A dense white fungal growth with masses of blue or green spores then covers the rotted areas. Fruit left to rot on the ground is a significant source of infection so be sure to pick up fallen fruit as soon as possible.



Answered: 23 May, 2011

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