Multiple choice

The causative agent for Great Irish Famine is

  1. Phytophthora

  2. Pythium

  3. Xanthomonas

  4. Rhizoctonia

  5. Ustilago
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A Correct answer
Explanation

Phytophthora spp. are mostly pathogens of dicotyledons, and are relatively host-specific parasites. Many species of Phytophthora are plant pathogens of considerable economic importance. Phytophthora infestans was the infective agent of the potato blight that caused the Great Irish Famine.

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