In the northeast, farmers put tussah silkworms out on the oaks in the hills to feed on the leaves.
Tips
usage
柞 is read zuò here; the reading zhà is only for the place name 柞水. The everyday word for oak is 橡树; 柞树 is the northern name, used above all for the oaks whose leaves feed the tussah silkworm 柞蚕.
