关键词: 黄曲条跳甲, 印楝素, 生态控制, 忌避作用, 害虫累积为害量

Abstract: Based on the requirement of scientifically managing landscape ecological data and dynamically monitoring regional landscape pattern,and with the Zhifanggou region in North Shaanxi Province as an example,this paper developed a regional landscape pattern monitoring information system (RLPMIS) by the combination of Delphi and MapX.The planning route and establishing method of the system were simply explained,and its basic structure and function were explicated.This system was mainly divided into four parts,i.e.,data management module,query management module, landscape index analysis module,and landscape forecasting module.In this system,the graphics and the attributes of the landscape data were integrated entirely and managed effectively,and thus,the spatial information could be displayed,located and inquired in the RLPMIS.The landscape pattern could be comprehensively analyzed based on the various landscape indexes of landscape elements or whole landscape being calculated,and the landscape developing trend could be forecasted and simulated.At the same time,the statistical graph and table,which visually reflected the landscape pattern,developed and changed disciplinarian in different periods,could be dynamically generated.

Key words: Striped flea beetle, Phyllotreta striolata(F), Azadirachtin, Ecological control, Deterrent effect, Insect pests accumulated damage amount