Question:
Among the following, which is not a source for passive dispersal of plant pathogen.
Among the following, which is not a source for passive dispersal of plant pathogen.
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Passive dispersal involves movement without active involvement; insects are active carriers.
Updated On: May 26, 2026
- Water
- Air
- Soil
- Insect
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The Correct Option is D
Solution and Explanation
Step 1: Concept
Dispersal mechanisms of pathogens
Step 2: Meaning
Understanding how plant pathogens spread passively in the environment
Step 3: Analysis
Passive dispersal refers to the movement of pathogens without active involvement of the host or pathogen. Water, air, and soil can serve as passive carriers for pathogens, but insects are considered a form of active dispersal.
Step 4: Conclusion
Insects actively transport pathogens from one location to another, thus not fitting the definition of passive dispersal Final Answer: (D)
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