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प्रश्न
Match the column A with B and rewrite correct pairs
| A | B | |
| I | Mycoherbicides | Cactoblastis |
| II | Bacterial herbicides | Alternaria |
| III | Insects as herbicides | Xanthomonas |
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उत्तर
| A | B | |
| I | Mycoherbicides | Alternaria |
| II | Bacterial herbicides | Xanthomonas |
| III | Insects as herbicides | Cactoblastis |
संबंधित प्रश्न
Given below is a list of six micro-organisms. State their usefulness to humans.
- Nucleopolyhedrovirus
- Saccharomyces cerevisiae
- Monascus purpureus
- Trichoderma polysporum
- Penicillium notatum
- Propionibacterium sharmanii
Mention one advantage and one disadvantage to a farmer who uses them.
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.
What is mycorrhiza?
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
Organic farmer use Baculovirus as biological control agents. Explain.
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?
Why are the biocontrol agents preferred over the chemical pesticides?
Which bacterial pathogens are mentioned as being used in microbial herbicides to attack several weeds?
