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प्रश्न
Give two examples of microbial pesticides with their hosts.
उत्तर
| Pathogen | Host range |
|
Bacteria : Bacillus thuringiensis(Bt) |
Caterpillars (larvae of moths and butterflies), larvae of Aedes, black flies, some adult beetles, wax moths, etc. |
|
Fungi : Beauveria bassiana |
Aphids, mealy bugs, mites, white files, etc. |
|
Protozoans : Nosema locustae |
Grasshoppers, caterpillars, some corn-borers and crickets |
|
Viruses : Nucleopolyhedrovirus or NPV (125 types known) |
Gypsy moths and caterpillars |
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संबंधित प्रश्न
State the medicinal value and the bioactive molecules produced by Streptococcus, Monascus and Trichoderma.
Mention one advantage and one disadvantage to a farmer who uses them.
Why are baculovirus considered good bio-control agents?
Give the biological name of the following:
The fungus that is being developed as a bio-control agent.
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 is TRUE regarding Xanthomonas and Pseudomonas?
The free-living fungus Trichoderma can be used for ______.
What for Nucleopolyhydro viruses are being used now a days?
How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?
Why are the biocontrol agents preferred over the chemical pesticides?
