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प्रश्न
What for Nucleopolyhydro viruses are being used now a days?
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उत्तर
Necleopolyhydroviruses are used for the biological control of insect pesto.
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संबंधित प्रश्न
Mention one advantage and one disadvantage to a farmer who uses them.
Name the type of association that the genus Glomus exhibits with higher plants.
Explain the significant role of the genus Nucleopolyhedrovirus in an ecological sensitive area.
Why are baculoviruses considered good biocontrol agents?
State the difference in organic farmers approach from that of conventional pest control methods.
Give the biological name of the following:
The microbe used to control insect larvae growing on cotton.
Give the biological name of the following:
The fungus that is being developed as a bio-control agent.
How does the activity of each one of the following help in organic farming?
Mycorrhiza
Which of the following is the INCORRECT statement with respect to biocontrol agents?
Identify the INCORRECT statement regarding Bacillus thuringiensis.
Which of the following is TRUE regarding Xanthomonas and Pseudomonas?
Which group features jointed appendages?
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
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:
Describe the main ideas behind the biological control of pests and diseases.
- 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?
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.
- What effect will the spores of Bt have on the insect pest?
- How has field B developed resistance against this pest?
Define bioherbicides.
