南美斑潜蝇生活史观察

Observations on the Life Cycles of Liriomyza huidobrensis (Blanchard)

为了查清南美斑潜蝇的生活史 ,于 2 0 0 0～ 2 0 0 1年进行了饲养及大田调查。结果表明 ,南美斑潜蝇在白菜上 1年可完成 10～ 11代 ,世代重叠现象明显 ,无明显越冬现象 ,完成 1代的历期 ,最短需要18～ 2 4d ,最长需要 10 7～ 12 5d ;在烤烟生育期间 ,可完成 5～ 6代 ,世代重叠 ,完成 1代需要 18～ 34d ,其中卵期 2～ 5d ,幼虫期 7～ 14d ,蛹期 8～ 14d。

In order to find out the life cycles of Liriomyza huidobrensis (Blanchard), raising and field investigation were conducted during 2000-2001. The results showed that there were 10-11 generations per year in cabbages. The overlap of generations was obviously, and there was no apparent sign of over-winter. One generation spanned 18-24 days at least, and 107-125 days at most. There were 5-6 completed generations during the growth of flue-cured tobacco, the generations were overlapped, one generation spanned 18-34 days, including 2-5 days of egg stage, 7-14 days of larva stage and 8-14 days of pupa stage.