Write the names of two primary and two secondary host plants of muga silkworm?

Explanation

**Step-by-Step Solution:**

1. **Understanding Host Plants**: Host plants are categorized into primary and secondary based on their role in the life cycle of the muga silkworm. Primary host plants are those from which the silkworms primarily derive their nutrition, while secondary host plants are those that they can also feed on after growing.

2. **Identifying Primary Host Plants**:
- The first primary host plant for the muga silkworm is **Som**, scientifically known as **Persea bombycina**.
- The second primary host plant is **Stoalu**, which is scientifically classified as **Litsea monopetala**.

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