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प्रश्न
What is mycorrhiza?
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उत्तर
Mycorrhiza is a fungus. It forms symbiotic associations with the underground parts, like rhizomes and roots of higher plants occurring in thick, humid forests.
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संबंधित प्रश्न
Name a genus of baculovirus.
How do organic farmers control pests?
How do mycorrhizae act as biofertilizers? Explain.
Explain the significant role of the genus Nucleopolyhedrovirus in an ecological sensitive area.
Give two examples of microbial pesticides with their hosts.
Give an example of a bacterium, a fungus and an insect that are used as biocontrol agents.
______ are controlled by the microbial herbicide Phytophthora palmivora.
Which of the following is the host for microbial pesticide Beauveria bassiana?
Which of the following is the INCORRECT statement?
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:
Describe the main ideas behind the biological control of pests and diseases.
Organic farmer use Baculovirus as biological control agents. Explain.
- 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?
give any two examples of microbial herbicides.
Explain how Bacillus thuringiensis acts as a bio-control agent.
Why are the biocontrol agents preferred over the chemical pesticides?
Which one of the following is NOT a bioherbicide of bacterial origin?
