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प्रश्न
Organic farmer use Trichoderma as biological control agents. Explain.
उत्तर
Trichoderma species are free-living fungi that are very common in the root ecosystems. They are effective biocontrol agents for several plant pathogens.
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संबंधित प्रश्न
Give reasons for the following:
Nitrogenous fertilizers are not applied in fields where leguminous crops grow.
Give the biological name of the following:
The microbe used to control insect larvae growing on cotton.
How does the activity of each one of the following help in organic farming?
Mycorrhiza
What is mycorrhiza?
Which of the following is TRUE regarding Bacillus thuringiensis?
Which of the following is the host for microbial pesticide Beauveria bassiana?
Identify the reason/s due to which Trichoclerma species is a potent biocontrol agent.
Which one of the following statements is WRONG in relation to transgenic Bt cotton plant?
Farmers have reported over 50% higher yield of rice by using which of the following biofertilizers?
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?
