遼東地區的柞蠶,在一九一一年(民國初年)有過年産一百億個繭以上的光輝紀錄。其後隨着軍閥的割據,日寇的侵略,和國民黨反動派的進攻等摧殘,已至奄奄一息的程度。一九四七年二次解放,經人民政府的大力扶持,和農村的大生産運動,一九四九年迅速地恢復到六萬把剪子,收繭十五億個。一九五○年計劃春 Tussah in the Liaodong area had a glorious record of over 10 billion cocoons per year in 1911 (the early Republican period). Subsequently, with the separatist forces of the warlords, the aggression of the Japanese invaders and the offensive of the Kuomintang reactionaries, they were at a dying level. After liberation in 1947, with the strong support of the people’s government and the mass production movement in the countryside, it quickly returned to 60,000 scissors and 1.5 billion scallops in 1949. Spring 1950 plan