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Microbes as Biocontrol Agents - Practice Questions & MCQ
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
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Microbes as Biocontrol Agents is considered one of the most asked concept.
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Microbes as Biocontrol Agents
- Biocontrol refers to the use of biological methods for controlling plant diseases and pests.
- The very familiar beetle with red and black markings – the Ladybird is useful to get rid of aphids.
- Dragonflies are useful to get rid of mosquitoes.
- An example of microbial biocontrol agents that can be introduced in order to control butterfly caterpillars is the bacteria Bacillus thuringiensis (often written as Bt).
- A biological control being developed for use in the treatment of plant disease is the fungus Trichoderma.
- Trichoderma species are free-living fungi that are very common in the root ecosystems.
- They are effective biocontrol agents of several plant pathogens.
- Baculoviruses are pathogens that attack insects and other arthropods.
- The majority of baculoviruses used as biological control agents are in the genus Nucleopolyhedrovirus.
- These viruses are excellent candidates for species-specific, narrow spectrum insecticidal applications.
- They have been shown to have no negative impacts on plants, mammals, birds, fish or even on non-target insects.
- This is especially desirable when beneficial insects are being conserved to aid in an overall integrated pest management (IPM) programme, or when an ecologically sensitive area is being treated.
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