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प्रश्न
How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?
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उत्तर
Bacillus thuringiensis produces endotoxin, which disrupts the gut lining of caterpillar larvae, killing them and controlling insect pests effectively. This toxin has been used in biopesticides and genetically modified Bt crops like cotton.
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संबंधित प्रश्न
Name and explain the type of interaction that exists in mycorrhizae and between cattle egret and cattle.
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- Nucleopolyhedrovirus
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State the difference in organic farmers approach from that of conventional pest control methods.
Give reasons for the following:
Nitrogenous fertilizers are not applied in fields where leguminous crops grow.
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Give an example of a bacterium, a fungus and an insect that are used as biocontrol agents.
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Give the biological name of the following:
The microbe used to control insect larvae growing on cotton.
Give the biological name of the following:
The fungus that is being developed as a bio-control agent.
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Mycorrhiza
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 |
Which of the following can be killed using Nosema locustae?
From the following which one is NOT a bacterial herbicide?
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?
Name any genetically modified crop.
Describe the main ideas behind the biological control of pests and diseases.
Organic farmer use Baculovirus as biological control agents. Explain.
Nucleopolyhedrovirus do not show ______.
Define bioherbicides.
Why are the biocontrol agents preferred over the chemical pesticides?
