Name the fungus on rolling orange as green blue mould.

Explanation

To answer the question "Name the fungus on rolling orange as green blue mould," follow these steps:

### Step 1: Identify the Context
Understand that the question is asking for the name of a specific fungus that is commonly associated with citrus fruits, particularly oranges, and is referred to as "green blue mould."

### Step 2: Recall Relevant Information
From the video transcript, we learn that this fungus is responsible for significant losses in citrus fruit after harvesting and is commonly known for causing green rot.

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