The majority of Baculo viruses are used as biological control agents because

Options

A. These are excellent candidates for spe- cies - specific applications
B. hey have been no negative impact on non-target plants and animals
C. Beneficial insects are being conserved
D. All the above

Explanation

**Step-by-Step Solution:**

1. **Understanding Baculoviruses**: Baculoviruses, also known as nucleopolyhedroviruses, are a group of viruses that primarily infect insects. They are recognized for their potential in biological pest control.

2. **Biological Control Agents**: Biological control refers to the use of living organisms (like viruses, bacteria, or other insects) to manage pest populations. Baculoviruses are effective biological control agents because they specifically target certain insect pests without harming other beneficial organisms.

3. **Species Specificity**: One of the key reasons baculoviruses are used in biological control is their species specificity. They are designed to infect and kill specific pest species, which means they do not affect non-target organisms, including beneficial insects, plants, and animals.

4. **No Negative Impact on Non-targets**: Baculoviruses do not have a negative impact on non-target plants and animals. This is crucial in agricultural practices as it helps maintain the ecological balance and conserves beneficial species.

5. **Conservation of Beneficial Insects**: Since baculoviruses only target specific pests, beneficial insects that help in pollination or pest control are preserved. This is an important aspect of sustainable agriculture.

6. **Conclusion**: Therefore, the majority of baculoviruses are used as biological control agents because they are excellent candidates for species-specific applications, have no negative impact on non-target plants and animals, and help conserve beneficial insects.

**Final Answer**: The majority of baculoviruses are used as biological control agents because they are species-specific, have no negative impact on non-target organisms, and conserve beneficial insects.

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