Black rust of wheat is caused by ______?

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Black rust of wheat is caused by ______? Answer: Puccinia

Black rust (stem rust) of wheat is a fungal disease caused by Puccinia graminis. It affects the stems and leaves, causing reddish-brown to black pustules, leading to reduced photosynthesis, weakened stems, and significant yield loss in wheat crops.

Question context

This question is part of 🌍 Current Affairs within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.