Why should biological control of pests and pathogens be preferred to the conventional use of chemical pesticides?

Explanation

### Step-by-Step Text Solution

1. **Introduction to Biological Control**: Biological control refers to the use of natural predators, parasites, or pathogens to manage pest populations. This method is often preferred over conventional chemical pesticides.

2. **Environmental Impact**: One of the primary reasons to prefer biological control is its minimal environmental impact. Chemical pesticides can lead to pollution of water bodies and soil, affecting not only the target pests but also non-target organisms and ecosystems.

- **Hint**: Consider how chemical pesticides can affect the environment and the broader ecosystem.

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