Question:
The microbes which are used as biocontrol agents of pests include __________.
The microbes which are used as biocontrol agents of pests include __________.
Show Hint
Think of Bacillus thuringiensis, Trichoderma, baculovirus and Nosema locustae.
Updated On: Nov 12, 2026
- bacteria, fungi, algae and protozoans
- bacteria, virus, viroids and prions
- bacteria, fungi, protozoans and viruses
- bacteria, lichens, fungi and algae
Show Solution
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
Biological control uses natural enemies of pests in place of chemical pesticides.
Step 2: Examples
Bacteria: Bacillus thuringiensis kills caterpillars. Fungi: Trichoderma suppresses plant pathogens. Viruses: baculoviruses such as nucleopolyhedrovirus attack insects. Protozoans: Nosema locustae is used against grasshoppers and locusts.
Step 3: Compare the options
Algae, lichens, viroids and prions are not used as microbial biocontrol agents. So only the option with bacteria, fungi, protozoans and viruses is right.
Final Answer:
Biocontrol microbes include bacteria, fungi, protozoans and viruses. \[ \boxed{\text{(C) }\text{bacteria, fungi, protozoans and viruses}} \]
Biological control uses natural enemies of pests in place of chemical pesticides.
Step 2: Examples
Bacteria: Bacillus thuringiensis kills caterpillars. Fungi: Trichoderma suppresses plant pathogens. Viruses: baculoviruses such as nucleopolyhedrovirus attack insects. Protozoans: Nosema locustae is used against grasshoppers and locusts.
Step 3: Compare the options
Algae, lichens, viroids and prions are not used as microbial biocontrol agents. So only the option with bacteria, fungi, protozoans and viruses is right.
Final Answer:
Biocontrol microbes include bacteria, fungi, protozoans and viruses. \[ \boxed{\text{(C) }\text{bacteria, fungi, protozoans and viruses}} \]
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