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प्रश्न
Give the biological name of the following:
The microbe used to control insect larvae growing on cotton.
उत्तर
Bacillus thuringienesis
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संबंधित प्रश्न
Mention one advantage and one disadvantage to a farmer who uses them.
What is VAM?
Give reasons for the following:
Nitrogenous fertilizers are not applied in fields where leguminous crops grow.
Organic farmers prefer the biological control of diseases and pests to the use of chemicals for the same purpose. Justify
Answer the following question:
Why are the spores of Bacillus thuringiensis used as bioinsecticide?
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 one of the following statements is WRONG in relation to transgenic Bt cotton plant?
- 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?
Define bioherbicides.
Why are the biocontrol agents preferred over the chemical pesticides?
