Advertisements
Advertisements
प्रश्न
State the difference in organic farmers approach from that of conventional pest control methods.
Advertisements
उत्तर १
Organic farmers control pests by maintaining a balanced ecosystem where pests are kept at manageable levels without eradication, using natural predators and biocontrol methods. Conventional methods use chemicals that kill pests and beneficial organisms indiscriminately. Organic farming avoids toxic pesticides, promoting ecological balance and reducing chemical dependence.
उत्तर २
| Sr. No. | Aspect | Organic Farmers Approach | Conventional Pest Control |
| 1. | Pest Control Method | Maintain pests at manageable levels through natural checks. | Kill pests using chemical pesticides indiscriminately. |
| 2. | Use of Chemicals | Avoid toxic chemical pesticides. | Use synthetic chemical insecticides and pesticides. |
| 3 | Impact on Ecosystem | Preserve beneficial insects that prey on pests. | Harmful and beneficial insects alike. |
| 4. | Pest Eradication Goal | Pest eradication is undesirable; pests are part of the ecosystem. | Aim to completely eradicate pests. |
| 5. | Environmental Effect | Promotes ecological balance, reduces pollution. | Causes environmental pollution and chemical residues. |
Notes
Students can refer to the answer according to their preferred marks.
संबंधित प्रश्न
With the help of a neat and labelled diagram explain VAM (vesicular arbuscular mycorrhizae).
State the medicinal value and the bioactive molecules produced by Streptococcus, Monascus and Trichoderma.
How do mycorrhizae act as biofertilizers? Explain.
Why are baculoviruses considered good biocontrol agents?
Match the column A with B and rewrite correct pairs
| A | B | |
| I | Mycoherbicides | Cactoblastis |
| II | Bacterial herbicides | Alternaria |
| III | Insects as herbicides | Xanthomonas |
From the following which one is NOT a bacterial herbicide?
Which group features jointed appendages?
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
How has the bacterium Bacillus thuringiensis helped us in controlling caterpillars of insect pests?
Nucleopolyhedrovirus do not show ______.
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?
Explain how Bacillus thuringiensis acts as a bio-control agent.
Which one of the following is NOT a bioherbicide of bacterial origin?
Protozoan like Nosema locustae is used for controlling the target pests like ______.
What is the primary definition of biocontrol?
Which bacterial biocontrol agent is used to control crown gall disease of stone fruits?
Which protozoan biocontrol agent is used against grasshoppers, caterpillars, corn borers, and crickets?
Which insect is used as a biological herbicide to control the weed Senecio jacobeae?
Which bacterial pathogens are mentioned as being used in microbial herbicides to attack several weeds?
Why are baculoviruses described as 'species-specific' biocontrol agents?
