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प्रश्न
- 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?
उत्तर
- Most of the baculoviruses used as biological control agents are in the genus Nucleopolyhedrovirus.
- Baculoviruses (Nucleopolyhedroviruses) are great biocontrol agents for species-specific, narrow-spectrum insecticidal applications. They have no adverse effects on plants, mammals, birds, fish, or non-target insects. These are especially crucial when it comes to preserving beneficial insects as part of an overall Integrated Pest Management (IPM) programme. These viruses aid in the control of pests such as potato beetles, aphids, and corn borers.
संबंधित प्रश्न
Trichoderma konigi is a source of _______ enzyme.
(A) invertase
(B) lipase
(C) pectinase
(D) cellulase
Name the bioactive molecules produced by Trichoderma polysporum and Monascus purpureus.
Give reasons for the following:
Nitrogenous fertilizers are not applied in fields where leguminous crops grow.
Organic farmers prefer the biological control of diseases and pests to the use of chemicals for the same purpose. Justify
Answer the following question:
Why are the spores of Bacillus thuringiensis used as bioinsecticide?
______ are controlled by the microbial herbicide Phytophthora palmivora.
Which of the following is the INCORRECT statement with respect to biocontrol agents?
Which one of the following statements is WRONG in relation to transgenic Bt cotton plant?
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:
Explain how Bacillus thuringiensis acts as a bio-control agent.
