Advertisements
Advertisements
प्रश्न
Explain the significant role of the genus Nucleopolyhedrovirus in an ecological sensitive area.
Advertisements
उत्तर
The genus Nucleopolyhedrovirus plays a key role in ecologically sensitive areas by acting as a species-specific biological control agent for insect pests. It kills target pests without harming plants, mammals, birds, fish, or beneficial insects, helping to conserve biodiversity and aid integrated pest management.
APPEARS IN
संबंधित प्रश्न
With the help of a neat and labelled diagram explain VAM (vesicular arbuscular mycorrhizae).
Trichoderma konigi is a source of _______ enzyme.
(A) invertase
(B) lipase
(C) pectinase
(D) cellulase
Name and explain the type of interaction that exists in mycorrhizae and between cattle egret and cattle.
How do mycorrhizae act as biofertilizers? Explain.
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.
Give reasons for the following:
Nitrogenous fertilizers are not applied in fields where leguminous crops grow.
Give an example of a bacterium, a fungus and an insect that are used as biocontrol agents.
How does the activity of each one of the following help in organic farming?
Mycorrhiza
Select the odd one from given herbicides.
What is mycorrhiza?
Which of the following is TRUE regarding Bacillus thuringiensis?
Which of the following can be killed using Nosema locustae?
Which of the following is the INCORRECT statement with respect to biocontrol agents?
From the following which one is NOT a bacterial herbicide?
Identify the reason/s due to which Trichoclerma species is a potent biocontrol agent.
Match the items in Column ‘A’ and Column ‘B’ and choose correct answer.
| Column I | Column II |
| A. Lady bird | i. Methano bacterium |
| B. Mycorrhiza | ii. Trichoderma |
| C. Biological control | iii. Aphids |
| D. Biogas | iv. Glomus |
The correct answer is:
Name any genetically modified crop.
How do microbes reduce the environmental degradation caused by chemicals?
Why are the biocontrol agents preferred over the chemical pesticides?
