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प्रश्न
How do organic farmers control pests?
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उत्तर
Organic farmers control pests by maintaining a balanced ecosystem where pests are kept at manageable levels without eradication. They use biological control methods, relying on natural predators and parasites. For example, ladybirds control aphids, and dragonflies control mosquitoes. This approach avoids chemical pesticides, preserving beneficial organisms and reducing environmental harm.
संबंधित प्रश्न
Name and explain the type of interaction that exists in mycorrhizae and between cattle egret and cattle.
Mention one advantage and one disadvantage to a farmer who uses them.
Why are baculoviruses considered good biocontrol agents?
Give reasons for the following:
Nitrogenous fertilizers are not applied in fields where leguminous crops grow.
Give an example of a bacterium, a fungus and an insect that are used as biocontrol agents.
Give the biological name of the following:
The fungus that is being developed as a bio-control agent.
Write a note on biocontrol agents.
______ are controlled by the microbial herbicide Phytophthora palmivora.
From the following which one is NOT a bacterial herbicide?
Identify the INCORRECT statement regarding Bacillus thuringiensis.
Which of the following is TRUE regarding Xanthomonas and Pseudomonas?
Identify the reason/s due to which Trichoclerma species is a potent biocontrol agent.
The free-living fungus Trichoderma can be used for ______.
How do microbes reduce the environmental degradation caused by chemicals?
Describe the main ideas behind the biological control of pests and diseases.
Organic farmer use Baculovirus as biological control agents. Explain.
Which of the following is incorrect regarding Bacillus thuringiensis?
- Give an example of a genus of virus used as narrow spectrum insecticidal biocontrol agent.
- How does its use serve as an aid in overall integrated pest management programme?
give any two examples of microbial herbicides.
