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प्रश्न
Give an example of a bacterium, a fungus and an insect that are used as biocontrol agents.
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उत्तर
Examples of biocontrol agents are:
- Bacterium: Bacillus thuringiensis (used against insect pests and mosquito larvae).
- Fungus: Trichoderma (controls many plant diseases).
- Insect: Ladybird (control aphids) and dragonflies (control mosquitoes).
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संबंधित प्रश्न
Name a genus of baculovirus.
Name and explain the type of interaction that exists in mycorrhizae and between cattle egret and cattle.
What is VAM?
Give two examples of microbial pesticides with their hosts.
Why are the spores of Bacillus thuringiensis used as bioinsecticide?
How does the activity of each one of the following help in organic farming?
Mycorrhiza
Match the column A with B and rewrite correct pairs
| A | B | |
| I | Mycoherbicides | Cactoblastis |
| II | Bacterial herbicides | Alternaria |
| III | Insects as herbicides | Xanthomonas |
Which of the following is TRUE regarding Bacillus thuringiensis?
Which of the following can be killed using Nosema locustae?
Identify the INCORRECT statement regarding Bacillus thuringiensis.
Which of the following is the host for microbial pesticide Beauveria bassiana?
Identify the reason/s due to which Trichoclerma species is a potent biocontrol agent.
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
The free-living fungus Trichoderma can be used for ______.
Match the items in Column ‘A’ and Column ‘B’ and choose correct answer.
| Column I | Column II |
| A. Lady bird | i. Methano bacterium |
| B. Mycorrhiza | ii. Trichoderma |
| C. Biological control | iii. Aphids |
| D. Biogas | iv. Glomus |
The correct answer is:
How do microbes reduce the environmental degradation caused by chemicals?
- Give an example of a genus of virus used as narrow spectrum insecticidal biocontrol agent.
- How does its use serve as an aid in overall integrated pest management programme?
Define bioherbicides.
Which one of the following is NOT an action of biocontrol on a pest?
