Population dynamics of Bactrocera dorsalis, B. cucurbitae and B. tau (Diptera: Tephritidae) in Xishuangbanna.
Deng YuLiang, Li ZhengYue, Zhang HongRui
Author Affiliation: Xishuangbanna Entry-Exit Inspection and Quarantine Bureau, Yunnan, Jinghong 666100, China.
Southwest China Journal of Agricultural Sciences 19 : 643-648
Abstract : The population dynamics of B. dorsalis, B. cucurbitae and B. tau in Jinghong, Menglong and Daluo in Xishuangbanna prefecture, Yunnan, China, were monitored from 2000 to 2003 using lure traps. The fruit flies were observed throughout the year, with B. dorsalis being the dominant. The population dynamics followed the same trend at all sites. The population densities increased from the end of May until the beginning of July, then decreased markedly after September. The population of the flies did not significantly vary between the sites and years. Mango and longan were the most preferred hosts; thus, the production area, fruiting period and fruit yield for both crops had significant effects on the fruit fly population. Temperature and rainfall also had marked effects on the population dynamics of the fruit flies.