Feng, Y., Chen, X.M., He, Z., Guo, B.H., & Ma, Y. 2006 Anti-mutation experiment of white wax scale (Ericerus pela) and analysis of main function factors.. Forest Research 19(3): 284-288.

Notes: An experiment was conducted to investigate the anti-mutation of white wax scale (Ericerus pela) and to analyse its main functional factors. The micro-nucleoli rates in every experimental dose were lower compared with the contrast in 48 h. Significant difference was observed between high dose and contrast group. The restriction rate of micro-nucleoli in high dose group was 34.19%. Results showed that white wax scale could restrict mutation caused by CP [coat protein] and had clear anti-mutation function. White wax scale contained 2.14% chitin and 7.2% crude polysaccharide. The polysaccharide content was 4.54% after removing protein by enzyme. The sugar content of the polysaccharide was 22.1% as glucose, composed of glucose, galactose and fructose in molar ratio of 5:21:1. The polysaccharide isolated from white wax scale was polysaccharide-protein complex. This insect contained 1.3% flavonoid and several kinds of vitamins, chitin, polysaccharide. Vitamin and flavonoid were the main anti-mutation functional factors of white wax scale.