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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
State the difference in organic farmers approach from that of conventional pest control methods.
Give the biological name of the following:
The fungus that is being developed as a bio-control agent.
Identify the INCORRECT statement regarding Bacillus thuringiensis.
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
The free-living fungus Trichoderma can be used for ______.
Name any genetically modified crop.
Many members of genus Glomus form a mycorrhizal association with plants. Elaborate how is this association beneficial to the plants.
Which one of the following is NOT a bioherbicide of bacterial origin?
Which insect biocontrol agent is specifically useful for eliminating aphids?
Which of the following is an example of a smother crop?
