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प्रश्न
How do microbes reduce the environmental degradation caused by chemicals?
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उत्तर
Chemicals from fertilisers and pesticides are highly toxic to human beings and animals alike and have been polluting our environment. To reduce the environmental degradation caused by chemicals, microbes can be used both as fertilizers and pesticides and can be called bio fertilisers and biopesticides, respectively Microbes are used as bio fertilisers to enrich the soil nutrients, e.g., Rhizobium Azotobacter, Azospirillum, etc, which can fix atmospheric nitrogen in the soil. Bacillus thuringiensis bacteria act as biopesticides to control the growth of insect pests. Trichoderma, fungal species is an effective biocontrol agent of several plant pathogens. Baculovirus used as a biological control agent in the genus Nucleopolyhedrovirus is excellent for species-specific, narrow spectrum insecticidal applications.
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संबंधित प्रश्न
Name the bioactive molecules produced by Trichoderma polysporum and Monascus purpureus.
How do mycorrhizae act as biofertilizers? Explain.
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 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 TRUE regarding Bacillus thuringiensis?
Identify the INCORRECT statement regarding Bacillus thuringiensis.
Which group features jointed appendages?
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:
Name any genetically modified crop.
How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?
Describe the main ideas behind the biological control of pests and diseases.
Nucleopolyhedrovirus do not show ______.
Define bioherbicides.
Explain how Bacillus thuringiensis acts as a bio-control agent.
