Plant diseases are spread by various means, including abiotic factors (wind, rain, dust) and biotic factors (insects, birds, other animals, human activities).
Consider the following : 1. Birds 2. Dust blowing 3. Rain 4. Wind blowing Which of the above spread plant diseases ?
Asked in UPSC IAS 2018 · Topic: Main Plant Diseases (Epidemiology and Disease Cycle)
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