作　　者： ; ; ; ;

机构地区： 广东检验检疫技术中心

出　　处： 《生物安全学报》 2012年第2期105-108,共4页

摘　　要： 【背景】南亚果实蝇是世界性的检疫性害虫,在我国多个省市发生为害,对瓜果作物造成了严重的经济损失。【方法】采用人工恒温饲养方法,分别设置10、14、18、22、26、30、34℃7个恒温条件,测定不同温度条件下南亚果实蝇卵、幼虫和蛹的生长发育历期,并推算出相应的发育起点温度和有效积温。【结果】南亚果实蝇卵、幼虫和蛹的发育起点温度分别为7.36、2.43、7.64℃,卵期、幼虫期和蛹期的有效积温分别为20.21、187.69和156.65日度。完成整个世代的发育起点温度是7.64℃,有效积温为364.55日度。当温度达到34℃时,卵的发育历期相对延长,而蛹则不能正常发育,无法羽化为成虫。【结论与意义】在10～30℃,南亚果实蝇的卵、幼虫和蛹的发育历期随温度升高而缩短,各虫态的发育速率和温度呈显著正相关;在26和30℃下,卵、幼虫和蛹的发育历期均显著短于其他各处理温度的发育历期。该试验结果为了解南亚果实蝇的发育温度极限和进一步开展该害虫的适生性分析提供了基础信息,进而为制定该虫的检疫措施提供依据。 [ Background] The fruit fly Bactrocera （Zeugodacus） tau （Walker） is an important quarantine pest worldwide. The spe- cies occurs in many provinces and cities in China, causing serious economic losses to crops. [ Method ] The B. （Z.） tau popula- tions were artificially reared at seven constant temperatures （10, 14, 18, 22, 26, 30 and 34℃ ）. The developmental durations of eggs, larvae and pupae were recorded, and the developmental threshold temperature and effective accumulated temperatures were calculated. [ Result] The developmental threshold temperature of eggs, larvae, pupae and the whole generation was 7.36, 2.43, 7.64 and 7.64℃ respectively, and the effective accumulated temperature was 20.21, 187.69, 156.65 and 364.55 DD （degree-days）, respectively. At 34 ℃, the developmental duration of eggs was relatively long, and the no flies emerged from pupae. [ Conclusion and significance ] In the range of 10 ~ 30 ℃ , the developmental duration of eggs, larvae and pupae were shortened by increasing temperature, with a positive liner relationship between developmental rate and temperature within this range. At 26 and 30 ~C, the developmental durations were significantly shorter than that at other temperatures. The results provide a scientific basis for under- standing the developmental temperature limits of B. （ Z. ） tau, studing on the adaptability and quarantine measures of the pest.

关 键 词： 南亚果实蝇 发育起点温度 有效积温

领　　域： [生物学]