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प्रश्न
Describe the main ideas behind the biological control of pests and diseases.
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उत्तर
Biological control means life against life. It’s a natural and eco-friendly concept. It employs natural organisms to control the population of pathogens and pests in an ecosystem. Classical examples are Trichoderma which is an antagonist against many soil-borne plant pathogens. Similarly, Penicillium inhibits the growth of Staphylococcus and therefore has been successfully used in the production of Penicillin antibiotics to control many human bacterial pathogens.
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संबंधित प्रश्न
With the help of a neat and labelled diagram explain VAM (vesicular arbuscular mycorrhizae).
Name the bioactive molecules produced by Trichoderma polysporum and Monascus purpureus.
How do mycorrhizae act as biofertilizers? Explain.
Given below is a list of six micro-organisms. State their usefulness to humans.
- Nucleopolyhedrovirus
- Saccharomyces cerevisiae
- Monascus purpureus
- Trichoderma polysporum
- Penicillium notatum
- Propionibacterium sharmanii
What is VAM?
Why are baculoviruses considered good biocontrol agents?
State the difference in organic farmers approach from that of conventional pest control methods.
Give an example of a bacterium, a fungus and an insect that are used as biocontrol agents.
Why are the spores of Bacillus thuringiensis used as bioinsecticide?
Give the biological name of the following:
The microbe used to control insect larvae growing on cotton.
How does the activity of each one of the following help in organic farming?
Mycorrhiza
Which of the following is the INCORRECT statement with respect to biocontrol agents?
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?
Identify the reason/s due to which Trichoclerma species is a potent biocontrol agent.
Which group features jointed appendages?
Nucleopolyhedrovirus do not show ______.
Which one of the following is NOT a bioherbicide of bacterial origin?
