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प्रश्न
Organic farmers prefer the biological control of diseases and pests to the use of chemicals for the same purpose. Justify
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उत्तर १
Organic farmers prefer the biological control of disease and pest over the use of chemicals and pesticides because
1) They do not kill the useful and harmful life forms indiscriminately.
2) They are not toxic to human beings.
3) The natural predator-prey relationship and food chains will not get distorted.
4) It is a non-polluting practice.
उत्तर २
Chemical methods often kill both useful and harmful life forms indiscriminately. Eradication of the
creatures that are often described as pests in not only possible but also undesirable, for without them the beneficial predatory and parasitic insects which depend upon them as food or hosts would not be able to survive.
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संबंधित प्रश्न
How do mycorrhizae act as biofertilizers? Explain.
Name a genus of fungi that forms a mycorrhizal association with plants.
State the difference in organic farmers approach from that of conventional pest control methods.
Give the biological name of the following:
The microbe used to control insect larvae growing on cotton.
Which of the following statements regarding biocontrol agents are correct?
Which of the following is the INCORRECT statement with respect to biocontrol agents?
Identify the INCORRECT statement regarding Bacillus thuringiensis.
Identify the reason/s due to which Trichoclerma species is a potent biocontrol agent.
Name any genetically modified crop.
Nucleopolyhedrovirus do not show ______.
