Advertisements
Advertisements
प्रश्न
How do microbes reduce the environmental degradation caused by chemicals?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Name a genus of baculovirus.
How do organic farmers control pests?
How do mycorrhizae act as biofertilizers? Explain.
Name the type of association that the genus Glomus exhibits with higher plants.
What is VAM?
How does the activity of each one of the following help in organic farming?
Mycorrhiza
Which of the following statements regarding biocontrol agents are correct?
Which of the following is TRUE regarding Bacillus thuringiensis?
Which of the following is the host for microbial pesticide Beauveria bassiana?
The free-living fungus Trichoderma can be used for ______.
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.
Many members of genus Glomus form a mycorrhizal association with plants. Elaborate how is this association beneficial to the plants.
Organic farmer use Baculovirus as biological control agents. Explain.
Nucleopolyhedrovirus do not show ______.
Protozoan like Nosema locustae is used for controlling the target pests like ______.
What is the function of substances such as viridin, gliotoxin, and gliovirin produced by Trichoderma species?
Which fungal mycoherbicide controls milkweed in orchards?
Why are baculoviruses described as 'species-specific' biocontrol agents?
