Silkworms, specifically in their larval stage before pupating, grow to be about six to eight centimetres long.
When they first hatch, silkworms are extremely small, often described as looking like thin pencil lines on paper. However, they undergo rapid growth. Over a period of approximately four to five weeks, they dramatically increase in size.
During this growth phase, they transform from tiny larvae into much larger, smooth, creamy white worms. According to observations, it is within this timeframe that they reach their adult larval size, measuring around six to eight centimetres in length. At this stage, they are also noted for having characteristic features like shiny noses and yellow blood.
Understanding the silkworm's growth cycle provides insight into the significant change they undergo:
- Initial Stage: Very small, resembling thin lines.
- Growth Period: Rapid growth over 4-5 weeks.
- Mature Larva Size: Approximately 6–8 cm long.
This substantial increase in size is necessary for them to store enough energy to enter the pupal stage and eventually metamorphose into a silk moth.
Here's a simple overview of their size progression based on the provided information:
| Stage | Approximate Size |
|---|---|
| Newly Hatched | Like thin pencil lines |
| Fully Grown Larva | 6 to 8 centimetres long |
This impressive growth spurt is a key characteristic of the silkworm's life cycle before it spins its silk cocoon.
