How is silk farmed

I found this information about how silk is farmed and thought it was very interesting.It's amazing to think this is how silk is produced.
I found this piece form the Globe and Mail.
"Shunde is in the silk-producing region of China
Although sericulture, as silk farming is known, does not require either a great deal of land or a great deal of equipment, it does require a great deal of work. The tiny creatures eat only fresh mulberry leaves, and must be fed frequently around the clock as they grow in a matter of weeks to 10,000 times their original size before spinning their famous cocoons. Then workers must tease free the end of the single, continuous, mile-long strand that forms each delicate cocoon, drawing out the thread that eventually becomes lustrous, costly silk."