Field population dynamic and optimum control period of Melanaphis sacchari in Chaoyang region,Liaoning
Author of the article:LI Xue-Jun1;WANG Shu-Xian1;ZHENG Guo1;SUN Hui-Mi1;ZHANG Guang-Xue1,2
Author's Workplace:1. University Key Laboratory of Biological Evolution and Agricultural Ecology of Liaoning Province, Senyang Normal University, Shenyang 110034, China; 2. Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China
Key Words:Melanaphis sacchari; occurrence stages; growth and decline regulation; optimum control period
Abstract:Analysis of systematic investigation of Melanaphis sacchari(Zehntner) field population in Chaoyang region of Liaoning Province from 1989 to 2001 shows that the occurrence of the aphid was intermittent, and the infestation frequency was about 60%