[Effects of management level on community characteristics of arthropod and on population numbers of target insect pest and its natural enemies in graperies]

• Author(s): Bi, S.; Chen, X.; Li, C.; Li, F.; Lin, X.; Wu, H.; Zhou, X.; Zou, Y.;
• Abstract: In this paper, an investigation on the grape tree and ground vegetation was conducted in two graperies with intensive and extensive management, aimed to study the effects of different management level on the community characteristics of arthropod, and the population numbers of target pest Halticinae chalybca (Illiger) and its natural enemies Erigonidium gram inicolum and Tetragnathidae. The results showed that between the two graperies, the individual number, concentration value, evenness, and Hill diversity index of arthropod community had no significant difference, but its species number and abundance was significantly different (P 0.05). The species number of arthropod on the grape trees in intensive management grapery was not significantly different from that in extensive management grapery, while on the ground vegetation, it was significantly different (P 0.05). There was a little difference in the population numbers of H. chalybca and its natural enemies on the trees and ground vegetations of the two graperies.
• Publication Date: Dec 2005
• Journal: Ying Yong Sheng Tai Xue Bao