Advertisements
Advertisements
प्रश्न
Give two examples of microbial pesticides with their hosts.
Advertisements
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 |
APPEARS IN
संबंधित प्रश्न
Name the type of association that the genus Glomus exhibits with higher plants.
Write a note on biocontrol agents.
Which of the following statements regarding biocontrol agents are correct?
Which of the following is TRUE regarding Bacillus thuringiensis?
Identify the reason/s due to which Trichoclerma species is a potent biocontrol agent.
The free-living fungus Trichoderma can be used for ______.
How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?
Which of the following is incorrect regarding Bacillus thuringiensis?
A farmer grew 2 varieties of corn crops in fields A and B. He grew normal corn crops in field A and GM corn crops in field B. He observed corn borers attacked only in field A. To control it, spores of Bt were sprayed in field A.
- Name the gene in the spores responsible for the control of this pest.
- What effect will the spores of Bt have on the insect pest?
- How has field B developed resistance against this pest?
Which one of the following is NOT a bioherbicide of bacterial origin?
