Li, G.W., Sun, X.L., & Yu, B.L. 1985 [Preliminary study on the inhibitory effects of rational branch removal on Matsucoccus massonianae]. . Forest Science and Technology 2: 21-23.

Notes: Results of tests showed that tree growth as well as resistance to M. massonianae varied with different intensities of pruning. This resistance was positively related to crown length ratio and the number of whorls of lateral branches. A crown length ratio of 2:5 and more than 6 whorls of lateral branches are recommended. This produced a pest mortality rate of 62%, which increased to 100% when crown length ratio was 1:2 and 10 whorls of lateral branches were retained at pruning. High pruning intensity increased M. massonianae damage as well as reducing tree growth.