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प्रश्न
How do organic farmers control pests?
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उत्तर
Organic farmers control pests by maintaining a balanced ecosystem where pests are kept at manageable levels without eradication. They use biological control methods, relying on natural predators and parasites. For example, ladybirds control aphids, and dragonflies control mosquitoes. This approach avoids chemical pesticides, preserving beneficial organisms and reducing environmental harm.
संबंधित प्रश्न
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 two examples of microbial pesticides with their hosts.
Organic farmers prefer the biological control of diseases and pests to the use of chemicals for the same purpose. Justify
Why are the spores of Bacillus thuringiensis used as bioinsecticide?
Which of the following statements regarding biocontrol agents are correct?
Which of the following can be killed using Nosema locustae?
Which group features jointed appendages?
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
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?
Many members of genus Glomus form a mycorrhizal association with plants. Elaborate how is this association beneficial to the plants.
Organic farmer use Trichoderma as biological control agents. Explain.
Organic farmer use Baculovirus as biological control agents. Explain.
Nucleopolyhedrovirus do not show ______.
Define bioherbicides.
