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प्रश्न
How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?
उत्तर
Bacillus thuringiensis products are endotoxin that when ingested and released in the gut of the larvae of insect pest disrupts the insect gut lining thereby killing them.
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संबंधित प्रश्न
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.
Give two examples of microbial pesticides with their hosts.
______ are controlled by the microbial herbicide Phytophthora palmivora.
From the following which one is NOT a bacterial herbicide?
Which of the following is the host for microbial pesticide Beauveria bassiana?
Which of the following is TRUE regarding Xanthomonas and Pseudomonas?
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 any two examples of microbial herbicides.
