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प्रश्न
Which of the following is NOT used as a biocontrol agent for plant diseases?
विकल्प
Baculovirus
Dragon fly
Bacillus thuringiensis
Trichoderma
MCQ
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उत्तर
Dragon fly
Explanation:
- Trichoderma is a biocontrol fungus used against several plant pathogens (soil-borne diseases).
- Baculovirus and Bacillus thuringiensis (Bt) are biocontrol agents used mainly against insect pests.
- The dragonfly is a predator of insects like mosquitoes and is not used as a biocontrol agent for plant diseases.
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