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प्रश्न
How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?
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उत्तर
Bacillus thuringiensis produces endotoxin, which disrupts the gut lining of caterpillar larvae, killing them and controlling insect pests effectively. This toxin has been used in biopesticides and genetically modified Bt crops like cotton.
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संबंधित प्रश्न
Trichoderma konigi is a source of _______ enzyme.
(A) invertase
(B) lipase
(C) pectinase
(D) cellulase
Name a genus of baculovirus.
How do organic farmers control pests?
Name and explain the type of interaction that exists in mycorrhizae and between cattle egret and cattle.
What is VAM?
State the difference in organic farmers approach from that of conventional pest control methods.
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Give the biological name of the following:
The fungus that is being developed as a bio-control agent.
______ are controlled by the microbial herbicide Phytophthora palmivora.
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Which of the following is the INCORRECT statement with respect to biocontrol agents?
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Identify the reason/s due to which Trichoclerma species is a potent biocontrol agent.
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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:
What for Nucleopolyhydro viruses are being used now a days?
Name any genetically modified crop.
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Organic farmer use Trichoderma as biological control agents. Explain.
Nucleopolyhedrovirus do not show ______.
- Give an example of a genus of virus used as narrow spectrum insecticidal biocontrol agent.
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A farmer grew 2 varieties of corn crops in fields A and B. He grew normal corn crops in field A and GM corn crops in field B. He observed corn borers attacked only in field A. To control it, spores of Bt were sprayed in field A.
- Name the gene in the spores responsible for the control of this pest.
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give any two examples of microbial herbicides.
Protozoan like Nosema locustae is used for controlling the target pests like ______.
