关键词: 吸果夜蛾, 优势种群, 发生规律, 防治

Abstract: Oraesia excavata Butler and O. emarginata Fabricius are the two dominant species of fruit-piercing moth in Hubei Province. O. excavata Butler occurs four times a year and its harm peaks each time. O. emarginata Fabricius also occurs four times a year but only peaks during the last time. The larvae of the both species feed on Coeculus triobus so that there is a correlation between the distribution and density of Coeculus triobus and the occurrence and density of the insects. It is the most effective way in controlling the moths to eradicte Coeculus triobus, the host of the fruit-piercing moths' larvae. The experiments showed that applying herbicide to the stems of Coeculus triobus could kill the plant conveniently and permanently.

Key words: fruit-piercing moth, dominant species, occurrence pattern, control