COMPARATIVE STUDY ON SOME UTILITY CHARACTERS OF WHITE WAX SCALE PRODUCED IN SEVERAL DIFFERENT LOCATIONS OF SICHUAN, CHINA
白蜡虫几个地方种虫经济性状的比较研究

In 1984, we compared some utility characters of white wax scale Ericerus pela (Chavannes) which produced in the counties of Huili, Jingyan, Meigu, Emei, Rong, Nanjiang and jinkouhe special district. The prescent paper deals with the difference in regard to (he weight of 100 egg cases, egg numbers in an egg case, sex ratio, duration and quantities of secreting white wax by the white wax scale.