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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
Trichoderma konigi is a source of _______ enzyme.
(A) invertase
(B) lipase
(C) pectinase
(D) cellulase
How do organic farmers control pests?
How do mycorrhizae act as biofertilizers? Explain.
What is VAM?
Organic farmers prefer the biological control of diseases and pests to the use of chemicals for the same purpose. Justify
Give the biological name of the following:
The fungus that is being developed as a bio-control agent.
Write a note on biocontrol agents.
Select the odd one from given herbicides.
What is mycorrhiza?
Match the column A with B and rewrite correct pairs
| A | B | |
| I | Mycoherbicides | Cactoblastis |
| II | Bacterial herbicides | Alternaria |
| III | Insects as herbicides | Xanthomonas |
______ are controlled by the microbial herbicide Phytophthora palmivora.
From the following which one is NOT a bacterial herbicide?
Which of the following is the INCORRECT statement?
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
Many members of genus Glomus form a mycorrhizal association with plants. Elaborate how is this association beneficial to the plants.
Define bioherbicides.
Protozoan like Nosema locustae is used for controlling the target pests like ______.
